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[bpf-next,v4,0/7] add BPF_F_PERMANENT flag for sockmap skmsg redirect

Message ID 20230902100744.2687785-1-liujian56@huawei.com (mailing list archive)
Headers show
Series add BPF_F_PERMANENT flag for sockmap skmsg redirect | expand

Message

liujian (CE) Sept. 2, 2023, 10:07 a.m. UTC 
v3->v4: Change the two helpers's description.
	Let BPF_F_PERMANENT takes precedence over apply/cork_bytes.

Liu Jian (7):
  bpf, sockmap: add BPF_F_PERMANENT flag for skmsg redirect
  selftests/bpf: Add txmsg permanently test for sockmap
  selftests/bpf: Add txmsg redir permanently test for sockmap
  selftests/bpf: add skmsg verdict tests
  selftests/bpf: add two skmsg verdict tests for BPF_F_PERMANENT flag
  selftests/bpf: add tests for verdict skmsg to itself
  selftests/bpf: add tests for verdict skmsg to closed socket

 include/linux/skmsg.h                         |   1 +
 include/uapi/linux/bpf.h                      |  45 +++++--
 net/core/skmsg.c                              |   6 +-
 net/core/sock_map.c                           |   4 +-
 net/ipv4/tcp_bpf.c                            |  15 ++-
 tools/include/uapi/linux/bpf.h                |  45 +++++--
 .../selftests/bpf/prog_tests/sockmap_basic.c  | 122 ++++++++++++++++++
 .../selftests/bpf/progs/test_sockmap_kern.h   |   3 +-
 .../bpf/progs/test_sockmap_msg_verdict.c      |  25 ++++
 tools/testing/selftests/bpf/test_sockmap.c    |  41 +++++-
 10 files changed, 275 insertions(+), 32 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/progs/test_sockmap_msg_verdict.c

Comments

Jakub Sitnicki Sept. 8, 2023, 12:29 p.m. UTC | #1 
On Sat, Sep 02, 2023 at 06:07 PM +08, Liu Jian wrote:
> v3->v4: Change the two helpers's description.
> 	Let BPF_F_PERMANENT takes precedence over apply/cork_bytes.

Sorry, will need some more time to review this.

I wanted to test it and noticed we have a regression in sockamp in
bpf-next @ 831c4b3f39c7:

# ./test_progs -t sockmap_listen
[   17.941468] bpf_testmod: loading out-of-tree module taints kernel.
[   17.941888] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
#213/1   sockmap_listen/sockmap IPv4 TCP test_insert_invalid:OK
#213/2   sockmap_listen/sockmap IPv4 TCP test_insert_opened:OK
#213/3   sockmap_listen/sockmap IPv4 TCP test_insert_bound:OK
#213/4   sockmap_listen/sockmap IPv4 TCP test_insert:OK
#213/5   sockmap_listen/sockmap IPv4 TCP test_delete_after_insert:OK
#213/6   sockmap_listen/sockmap IPv4 TCP test_delete_after_close:OK
#213/7   sockmap_listen/sockmap IPv4 TCP test_lookup_after_insert:OK
#213/8   sockmap_listen/sockmap IPv4 TCP test_lookup_after_delete:OK
#213/9   sockmap_listen/sockmap IPv4 TCP test_lookup_32_bit_value:OK
#213/10  sockmap_listen/sockmap IPv4 TCP test_update_existing:OK
#213/11  sockmap_listen/sockmap IPv4 TCP test_destroy_orphan_child:OK
#213/12  sockmap_listen/sockmap IPv4 TCP test_syn_recv_insert_delete:OK
#213/13  sockmap_listen/sockmap IPv4 TCP test_race_insert_listen:OK
#213/14  sockmap_listen/sockmap IPv4 TCP test_clone_after_delete:OK
#213/15  sockmap_listen/sockmap IPv4 TCP test_accept_after_delete:OK
#213/16  sockmap_listen/sockmap IPv4 TCP test_accept_before_delete:OK
#213/17  sockmap_listen/sockmap IPv4 UDP test_insert_invalid:OK
#213/18  sockmap_listen/sockmap IPv4 UDP test_insert_opened:OK
#213/19  sockmap_listen/sockmap IPv4 UDP test_insert:OK
#213/20  sockmap_listen/sockmap IPv4 UDP test_delete_after_insert:OK
#213/21  sockmap_listen/sockmap IPv4 UDP test_delete_after_close:OK
#213/22  sockmap_listen/sockmap IPv4 UDP test_lookup_after_insert:OK
#213/23  sockmap_listen/sockmap IPv4 UDP test_lookup_after_delete:OK
#213/24  sockmap_listen/sockmap IPv4 UDP test_lookup_32_bit_value:OK
#213/25  sockmap_listen/sockmap IPv4 UDP test_update_existing:OK
#213/26  sockmap_listen/sockmap IPv4 test_skb_redir_to_connected:OK
#213/27  sockmap_listen/sockmap IPv4 test_skb_redir_to_listening:OK
#213/28  sockmap_listen/sockmap IPv4 test_skb_redir_partial:OK
#213/29  sockmap_listen/sockmap IPv4 test_msg_redir_to_connected:OK
#213/30  sockmap_listen/sockmap IPv4 test_msg_redir_to_listening:OK
#213/31  sockmap_listen/sockmap IPv4 TCP test_reuseport_select_listening:OK
#213/32  sockmap_listen/sockmap IPv4 TCP test_reuseport_select_connected:OK
#213/33  sockmap_listen/sockmap IPv4 TCP test_reuseport_mixed_groups:OK
#213/34  sockmap_listen/sockmap IPv4 UDP test_reuseport_select_listening:OK
#213/35  sockmap_listen/sockmap IPv4 UDP test_reuseport_select_connected:OK
#213/36  sockmap_listen/sockmap IPv4 UDP test_reuseport_mixed_groups:OK
#213/37  sockmap_listen/sockmap IPv4 test_udp_redir:OK
#213/38  sockmap_listen/sockmap IPv4 test_udp_unix_redir:OK
#213/39  sockmap_listen/sockmap IPv6 TCP test_insert_invalid:OK
#213/40  sockmap_listen/sockmap IPv6 TCP test_insert_opened:OK
#213/41  sockmap_listen/sockmap IPv6 TCP test_insert_bound:OK
#213/42  sockmap_listen/sockmap IPv6 TCP test_insert:OK
#213/43  sockmap_listen/sockmap IPv6 TCP test_delete_after_insert:OK
#213/44  sockmap_listen/sockmap IPv6 TCP test_delete_after_close:OK
#213/45  sockmap_listen/sockmap IPv6 TCP test_lookup_after_insert:OK
#213/46  sockmap_listen/sockmap IPv6 TCP test_lookup_after_delete:OK
#213/47  sockmap_listen/sockmap IPv6 TCP test_lookup_32_bit_value:OK
#213/48  sockmap_listen/sockmap IPv6 TCP test_update_existing:OK
#213/49  sockmap_listen/sockmap IPv6 TCP test_destroy_orphan_child:OK
#213/50  sockmap_listen/sockmap IPv6 TCP test_syn_recv_insert_delete:OK
#213/51  sockmap_listen/sockmap IPv6 TCP test_race_insert_listen:OK
#213/52  sockmap_listen/sockmap IPv6 TCP test_clone_after_delete:OK
#213/53  sockmap_listen/sockmap IPv6 TCP test_accept_after_delete:OK
#213/54  sockmap_listen/sockmap IPv6 TCP test_accept_before_delete:OK
#213/55  sockmap_listen/sockmap IPv6 UDP test_insert_invalid:OK
#213/56  sockmap_listen/sockmap IPv6 UDP test_insert_opened:OK
#213/57  sockmap_listen/sockmap IPv6 UDP test_insert:OK
#213/58  sockmap_listen/sockmap IPv6 UDP test_delete_after_insert:OK
#213/59  sockmap_listen/sockmap IPv6 UDP test_delete_after_close:OK
#213/60  sockmap_listen/sockmap IPv6 UDP test_lookup_after_insert:OK
#213/61  sockmap_listen/sockmap IPv6 UDP test_lookup_after_delete:OK
#213/62  sockmap_listen/sockmap IPv6 UDP test_lookup_32_bit_value:OK
#213/63  sockmap_listen/sockmap IPv6 UDP test_update_existing:OK
#213/64  sockmap_listen/sockmap IPv6 test_skb_redir_to_connected:OK
#213/65  sockmap_listen/sockmap IPv6 test_skb_redir_to_listening:OK
#213/66  sockmap_listen/sockmap IPv6 test_skb_redir_partial:OK
#213/67  sockmap_listen/sockmap IPv6 test_msg_redir_to_connected:OK
#213/68  sockmap_listen/sockmap IPv6 test_msg_redir_to_listening:OK
#213/69  sockmap_listen/sockmap IPv6 TCP test_reuseport_select_listening:OK
#213/70  sockmap_listen/sockmap IPv6 TCP test_reuseport_select_connected:OK
#213/71  sockmap_listen/sockmap IPv6 TCP test_reuseport_mixed_groups:OK
#213/72  sockmap_listen/sockmap IPv6 UDP test_reuseport_select_listening:OK
#213/73  sockmap_listen/sockmap IPv6 UDP test_reuseport_select_connected:OK
#213/74  sockmap_listen/sockmap IPv6 UDP test_reuseport_mixed_groups:OK
#213/75  sockmap_listen/sockmap IPv6 test_udp_redir:OK
#213/76  sockmap_listen/sockmap IPv6 test_udp_unix_redir:OK
#213/77  sockmap_listen/sockmap Unix test_unix_redir:OK
#213/78  sockmap_listen/sockmap Unix test_unix_redir:OK
./test_progs:vsock_unix_redir_connectible:1501: egress: write: Transport endpoint is not connected
vsock_unix_redir_connectible:FAIL:1501
#213/79  sockmap_listen/sockmap VSOCK test_vsock_redir:FAIL
#213/80  sockmap_listen/sockhash IPv4 TCP test_insert_invalid:OK
#213/81  sockmap_listen/sockhash IPv4 TCP test_insert_opened:OK
#213/82  sockmap_listen/sockhash IPv4 TCP test_insert_bound:OK
#213/83  sockmap_listen/sockhash IPv4 TCP test_insert:OK
#213/84  sockmap_listen/sockhash IPv4 TCP test_delete_after_insert:OK
#213/85  sockmap_listen/sockhash IPv4 TCP test_delete_after_close:OK
#213/86  sockmap_listen/sockhash IPv4 TCP test_lookup_after_insert:OK
#213/87  sockmap_listen/sockhash IPv4 TCP test_lookup_after_delete:OK
#213/88  sockmap_listen/sockhash IPv4 TCP test_lookup_32_bit_value:OK
#213/89  sockmap_listen/sockhash IPv4 TCP test_update_existing:OK
#213/90  sockmap_listen/sockhash IPv4 TCP test_destroy_orphan_child:OK
#213/91  sockmap_listen/sockhash IPv4 TCP test_syn_recv_insert_delete:OK
#213/92  sockmap_listen/sockhash IPv4 TCP test_race_insert_listen:OK
#213/93  sockmap_listen/sockhash IPv4 TCP test_clone_after_delete:OK
#213/94  sockmap_listen/sockhash IPv4 TCP test_accept_after_delete:OK
#213/95  sockmap_listen/sockhash IPv4 TCP test_accept_before_delete:OK
#213/96  sockmap_listen/sockhash IPv4 UDP test_insert_invalid:OK
#213/97  sockmap_listen/sockhash IPv4 UDP test_insert_opened:OK
#213/98  sockmap_listen/sockhash IPv4 UDP test_insert:OK
#213/99  sockmap_listen/sockhash IPv4 UDP test_delete_after_insert:OK
#213/100 sockmap_listen/sockhash IPv4 UDP test_delete_after_close:OK
#213/101 sockmap_listen/sockhash IPv4 UDP test_lookup_after_insert:OK
#213/102 sockmap_listen/sockhash IPv4 UDP test_lookup_after_delete:OK
#213/103 sockmap_listen/sockhash IPv4 UDP test_lookup_32_bit_value:OK
#213/104 sockmap_listen/sockhash IPv4 UDP test_update_existing:OK
#213/105 sockmap_listen/sockhash IPv4 test_skb_redir_to_connected:OK
#213/106 sockmap_listen/sockhash IPv4 test_skb_redir_to_listening:OK
#213/107 sockmap_listen/sockhash IPv4 test_skb_redir_partial:OK
#213/108 sockmap_listen/sockhash IPv4 test_msg_redir_to_connected:OK
#213/109 sockmap_listen/sockhash IPv4 test_msg_redir_to_listening:OK
#213/110 sockmap_listen/sockhash IPv4 TCP test_reuseport_select_listening:OK
#213/111 sockmap_listen/sockhash IPv4 TCP test_reuseport_select_connected:OK
#213/112 sockmap_listen/sockhash IPv4 TCP test_reuseport_mixed_groups:OK
#213/113 sockmap_listen/sockhash IPv4 UDP test_reuseport_select_listening:OK
#213/114 sockmap_listen/sockhash IPv4 UDP test_reuseport_select_connected:OK
#213/115 sockmap_listen/sockhash IPv4 UDP test_reuseport_mixed_groups:OK
#213/116 sockmap_listen/sockhash IPv4 test_udp_redir:OK
#213/117 sockmap_listen/sockhash IPv4 test_udp_unix_redir:OK
#213/118 sockmap_listen/sockhash IPv6 TCP test_insert_invalid:OK
#213/119 sockmap_listen/sockhash IPv6 TCP test_insert_opened:OK
#213/120 sockmap_listen/sockhash IPv6 TCP test_insert_bound:OK
#213/121 sockmap_listen/sockhash IPv6 TCP test_insert:OK
#213/122 sockmap_listen/sockhash IPv6 TCP test_delete_after_insert:OK
#213/123 sockmap_listen/sockhash IPv6 TCP test_delete_after_close:OK
#213/124 sockmap_listen/sockhash IPv6 TCP test_lookup_after_insert:OK
#213/125 sockmap_listen/sockhash IPv6 TCP test_lookup_after_delete:OK
#213/126 sockmap_listen/sockhash IPv6 TCP test_lookup_32_bit_value:OK
#213/127 sockmap_listen/sockhash IPv6 TCP test_update_existing:OK
#213/128 sockmap_listen/sockhash IPv6 TCP test_destroy_orphan_child:OK
#213/129 sockmap_listen/sockhash IPv6 TCP test_syn_recv_insert_delete:OK
#213/130 sockmap_listen/sockhash IPv6 TCP test_race_insert_listen:OK
#213/131 sockmap_listen/sockhash IPv6 TCP test_clone_after_delete:OK
#213/132 sockmap_listen/sockhash IPv6 TCP test_accept_after_delete:OK
#213/133 sockmap_listen/sockhash IPv6 TCP test_accept_before_delete:OK
#213/134 sockmap_listen/sockhash IPv6 UDP test_insert_invalid:OK
#213/135 sockmap_listen/sockhash IPv6 UDP test_insert_opened:OK
#213/136 sockmap_listen/sockhash IPv6 UDP test_insert:OK
#213/137 sockmap_listen/sockhash IPv6 UDP test_delete_after_insert:OK
#213/138 sockmap_listen/sockhash IPv6 UDP test_delete_after_close:OK
#213/139 sockmap_listen/sockhash IPv6 UDP test_lookup_after_insert:OK
#213/140 sockmap_listen/sockhash IPv6 UDP test_lookup_after_delete:OK
#213/141 sockmap_listen/sockhash IPv6 UDP test_lookup_32_bit_value:OK
#213/142 sockmap_listen/sockhash IPv6 UDP test_update_existing:OK
#213/143 sockmap_listen/sockhash IPv6 test_skb_redir_to_connected:OK
#213/144 sockmap_listen/sockhash IPv6 test_skb_redir_to_listening:OK
#213/145 sockmap_listen/sockhash IPv6 test_skb_redir_partial:OK
#213/146 sockmap_listen/sockhash IPv6 test_msg_redir_to_connected:OK
#213/147 sockmap_listen/sockhash IPv6 test_msg_redir_to_listening:OK
#213/148 sockmap_listen/sockhash IPv6 TCP test_reuseport_select_listening:OK
#213/149 sockmap_listen/sockhash IPv6 TCP test_reuseport_select_connected:OK
#213/150 sockmap_listen/sockhash IPv6 TCP test_reuseport_mixed_groups:OK
#213/151 sockmap_listen/sockhash IPv6 UDP test_reuseport_select_listening:OK
#213/152 sockmap_listen/sockhash IPv6 UDP test_reuseport_select_connected:OK
#213/153 sockmap_listen/sockhash IPv6 UDP test_reuseport_mixed_groups:OK
#213/154 sockmap_listen/sockhash IPv6 test_udp_redir:OK
#213/155 sockmap_listen/sockhash IPv6 test_udp_unix_redir:OK
#213/156 sockmap_listen/sockhash Unix test_unix_redir:OK
#213/157 sockmap_listen/sockhash Unix test_unix_redir:OK
./test_progs:vsock_unix_redir_connectible:1501: egress: write: Transport endpoint is not connected
vsock_unix_redir_connectible:FAIL:1501
./test_progs:vsock_unix_redir_connectible:1501: egress: write: Transport endpoint is not connected
vsock_unix_redir_connectible:FAIL:1501
./test_progs:vsock_unix_redir_connectible:1501: ingress: write: Transport endpoint is not connected
vsock_unix_redir_connectible:FAIL:1501
#213/158 sockmap_listen/sockhash VSOCK test_vsock_redir:FAIL
#213     sockmap_listen:FAIL

All error logs:
./test_progs:vsock_unix_redir_connectible:1501: egress: write: Transport endpoint is not connected
vsock_unix_redir_connectible:FAIL:1501
#213/79  sockmap_listen/sockmap VSOCK test_vsock_redir:FAIL
./test_progs:vsock_unix_redir_connectible:1501: egress: write: Transport endpoint is not connected
vsock_unix_redir_connectible:FAIL:1501
./test_progs:vsock_unix_redir_connectible:1501: egress: write: Transport endpoint is not connected
vsock_unix_redir_connectible:FAIL:1501
./test_progs:vsock_unix_redir_connectible:1501: ingress: write: Transport endpoint is not connected
vsock_unix_redir_connectible:FAIL:1501
#213/158 sockmap_listen/sockhash VSOCK test_vsock_redir:FAIL
#213     sockmap_listen:FAIL
Summary: 0/156 PASSED, 0 SKIPPED, 1 FAILED
[   18.853649] BUG: kernel NULL pointer dereference, address: 0000000000000008
[   18.854041] #PF: supervisor write access in kernel mode
[   18.854337] #PF: error_code(0x0002) - not-present page
[   18.854605] PGD 104826067 P4D 104826067 PUD 104825067 PMD 0
[   18.854918] Oops: 0002 [#1] PREEMPT SMP NOPTI
[   18.855171] CPU: 3 PID: 50 Comm: kworker/3:1 Tainted: G           OE      6.5.0+ #8
[   18.855592] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-1.fc38 04/01/2014
[   18.856051] Workqueue: events sk_psock_destroy
[   18.856294] RIP: 0010:skb_dequeue+0x4b/0x70
[   18.856524] Code: 74 45 4d 85 e4 74 40 8b 43 10 83 e8 01 89 43 10 49 8b 14 24 49 8b 44 24 08 49 c7 04 24 00 00 00 00 49 c7 44 24 08 00 00 00 00 <48> 89 42 08 48 89 10 4c 89 ef e8 e6 24 3b 00 4c 89 e0 5b 41 5c 41
[   18.857516] RSP: 0018:ffffc900002cbdc0 EFLAGS: 00010097
[   18.857798] RAX: 0000000000000000 RBX: ffff88810685e1b8 RCX: 363a88e2d5498366
[   18.858186] RDX: 0000000000000000 RSI: 0000000000000282 RDI: ffff88810685e1d0
[   18.858568] RBP: ffffc900002cbdd8 R08: 0000000000000000 R09: 0000000000080000
[   18.858961] R10: 0000000000000394 R11: 0000000000000001 R12: ffff888102468b00
[   18.859346] R13: ffff88810685e1d0 R14: ffff8881003da000 R15: ffff88810685e438
[   18.859735] FS:  0000000000000000(0000) GS:ffff88813bd80000(0000) knlGS:0000000000000000
[   18.860177] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.860486] CR2: 0000000000000008 CR3: 000000010480e005 CR4: 0000000000770ea0
[   18.860868] PKRU: 55555554
[   18.861017] Call Trace:
[   18.861155]  <TASK>
[   18.861273]  ? show_regs+0x60/0x70
[   18.861468]  ? __die+0x1f/0x70
[   18.861633]  ? page_fault_oops+0x80/0x160
[   18.861845]  ? do_user_addr_fault+0x320/0x7b0
[   18.862084]  ? __this_cpu_preempt_check+0x13/0x20
[   18.862348]  ? exc_page_fault+0x70/0x1c0
[   18.862562]  ? asm_exc_page_fault+0x27/0x30
[   18.862785]  ? skb_dequeue+0x4b/0x70
[   18.862986]  sk_psock_destroy+0x88/0x2e0
[   18.863205]  process_one_work+0x264/0x550
[   18.863420]  worker_thread+0x4d/0x3c0
[   18.863624]  ? process_one_work+0x550/0x550
[   18.863855]  kthread+0x106/0x140
[   18.864031]  ? kthread_complete_and_exit+0x20/0x20
[   18.864281]  ret_from_fork+0x35/0x60
[   18.864480]  ? kthread_complete_and_exit+0x20/0x20
[   18.864730]  ret_from_fork_asm+0x11/0x20
[   18.864948]  </TASK>
[   18.865075] Modules linked in: bpf_testmod(OE)
[   18.865320] CR2: 0000000000000008
[   18.865493] ---[ end trace 0000000000000000 ]---
[   18.865746] RIP: 0010:skb_dequeue+0x4b/0x70
[   18.865976] Code: 74 45 4d 85 e4 74 40 8b 43 10 83 e8 01 89 43 10 49 8b 14 24 49 8b 44 24 08 49 c7 04 24 00 00 00 00 49 c7 44 24 08 00 00 00 00 <48> 89 42 08 48 89 10 4c 89 ef e8 e6 24 3b 00 4c 89 e0 5b 41 5c 41
[   18.866968] RSP: 0018:ffffc900002cbdc0 EFLAGS: 00010097
[   18.867246] RAX: 0000000000000000 RBX: ffff88810685e1b8 RCX: 363a88e2d5498366
[   18.867638] RDX: 0000000000000000 RSI: 0000000000000282 RDI: ffff88810685e1d0
[   18.868028] RBP: ffffc900002cbdd8 R08: 0000000000000000 R09: 0000000000080000
[   18.868407] R10: 0000000000000394 R11: 0000000000000001 R12: ffff888102468b00
[   18.868801] R13: ffff88810685e1d0 R14: ffff8881003da000 R15: ffff88810685e438
[   18.869190] FS:  0000000000000000(0000) GS:ffff88813bd80000(0000) knlGS:0000000000000000
[   18.869624] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.869944] CR2: 0000000000000008 CR3: 000000010480e005 CR4: 0000000000770ea0
[   18.870327] PKRU: 55555554
[   18.870486] Kernel panic - not syncing: Fatal exception
[   18.870856] Kernel Offset: disabled
Daniel Borkmann Sept. 8, 2023, 1:45 p.m. UTC | #2 
On 9/8/23 2:29 PM, Jakub Sitnicki wrote:
> On Sat, Sep 02, 2023 at 06:07 PM +08, Liu Jian wrote:
>> v3->v4: Change the two helpers's description.
>> 	Let BPF_F_PERMANENT takes precedence over apply/cork_bytes.
> 
> Sorry, will need some more time to review this.
> 
> I wanted to test it and noticed we have a regression in sockamp in
> bpf-next @ 831c4b3f39c7:

All fixed in bpf, for testing pls use this tree until we have it over in bpf-next.

Thanks,
Daniel
Jakub Sitnicki Sept. 12, 2023, 5:21 p.m. UTC | #3 
On Sat, Sep 02, 2023 at 06:07 PM +08, Liu Jian wrote:
> v3->v4: Change the two helpers's description.
> 	Let BPF_F_PERMANENT takes precedence over apply/cork_bytes.

I gave it another try. But somethings is still not right.

sockmap tests run cleanly for me on bpf tree @ 4eb94a779307.

But with this patch set applied I'm seeing a refcount splat. Please see
the sample session log at the end. Reproducible every time.

I've also included the warning itself with the stack trace decoded. Once
again, this is commit 4eb94a779307 with these patches on top.

I'm preparing for a talk that is in a few weeks [1], so unfortunately I
have limited cycles to help debug this.

[1] https://www.usenix.org/conference/srecon23emea/presentation/sitnicki

$ ./scripts/decode_stacktrace.sh ./vmlinux < trace.txt
[    7.846863] ------------[ cut here ]------------
[    7.847383] refcount_t: underflow; use-after-free.
[    7.847919] WARNING: CPU: 3 PID: 36 at lib/refcount.c:28 refcount_warn_saturate (lib/refcount.c:28 (discriminator 1))
[    7.848719] Modules linked in: bpf_testmod(OE)
[    7.850364] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-1.fc38 04/01/2014
[    7.851893] Workqueue: events sk_psock_destroy
[    7.852617] RIP: 0010:refcount_warn_saturate (lib/refcount.c:28 (discriminator 1))
[ 7.853383] Code: 01 e8 32 f0 a9 ff 0f 0b 5d c3 cc cc cc cc 80 3d 24 c5 01 02 00 75 81 48 c7 c7 98 cc 77 82 c6 05 14 c5 01 02 01 e8 0e f0 a9 ff <0f> 0b 5d c3 cc cc cc cc 80 3d 01 c5 01 02 00 0f 85 59 ff ff ff 48
All code
========
   0:   01 e8                   add    %ebp,%eax
   2:   32 f0                   xor    %al,%dh
   4:   a9 ff 0f 0b 5d          test   $0x5d0b0fff,%eax
   9:   c3                      ret
   a:   cc                      int3
   b:   cc                      int3
   c:   cc                      int3
   d:   cc                      int3
   e:   80 3d 24 c5 01 02 00    cmpb   $0x0,0x201c524(%rip)        # 0x201c539
  15:   75 81                   jne    0xffffffffffffff98
  17:   48 c7 c7 98 cc 77 82    mov    $0xffffffff8277cc98,%rdi
  1e:   c6 05 14 c5 01 02 01    movb   $0x1,0x201c514(%rip)        # 0x201c539
  25:   e8 0e f0 a9 ff          call   0xffffffffffa9f038
  2a:*  0f 0b                   ud2             <-- trapping instruction
  2c:   5d                      pop    %rbp
  2d:   c3                      ret
  2e:   cc                      int3
  2f:   cc                      int3
  30:   cc                      int3
  31:   cc                      int3
  32:   80 3d 01 c5 01 02 00    cmpb   $0x0,0x201c501(%rip)        # 0x201c53a
  39:   0f 85 59 ff ff ff       jne    0xffffffffffffff98
  3f:   48                      rex.W

Code starting with the faulting instruction
===========================================
   0:   0f 0b                   ud2
   2:   5d                      pop    %rbp
   3:   c3                      ret
   4:   cc                      int3
   5:   cc                      int3
   6:   cc                      int3
   7:   cc                      int3
   8:   80 3d 01 c5 01 02 00    cmpb   $0x0,0x201c501(%rip)        # 0x201c510
   f:   0f 85 59 ff ff ff       jne    0xffffffffffffff6e
  15:   48                      rex.W
[    7.855330] RSP: 0018:ffffc9000014bdd8 EFLAGS: 00010282
[    7.855891] RAX: 0000000000000000 RBX: ffff888104ea0438 RCX: 0000000000000000
[    7.856539] RDX: 0000000000000002 RSI: ffffc9000014bc50 RDI: 00000000ffffffff
[    7.857348] RBP: ffffc9000014bdd8 R08: 0000000000000000 R09: ffffffff82e9bd60
[    7.858088] R10: ffffc9000014bc48 R11: ffffffff8359bda8 R12: ffff888104ea0268
[    7.858956] R13: ffff888104ea0268 R14: ffff888104ea0268 R15: dead000000000100
[    7.859687] FS:  0000000000000000(0000) GS:ffff88813bd80000(0000) knlGS:0000000000000000
[    7.860349] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.861013] CR2: 00007f4e2d2a7f78 CR3: 0000000002e6e002 CR4: 0000000000770ea0
[    7.862014] PKRU: 55555554
[    7.862224] Call Trace:
[    7.862515]  <TASK>
[    7.862719] ? show_regs (arch/x86/kernel/dumpstack.c:479)
[    7.863159] ? __warn (kernel/panic.c:673)
[    7.863521] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 1))
[    7.864073] ? report_bug (lib/bug.c:180 lib/bug.c:219)
[    7.864523] ? handle_bug (arch/x86/kernel/traps.c:237)
[    7.864954] ? exc_invalid_op (arch/x86/kernel/traps.c:258 (discriminator 1))
[    7.865379] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568)
[    7.866011] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 1))
[    7.866613] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 1))
[    7.867159] sk_psock_destroy (./include/linux/refcount.h:283 ./include/linux/refcount.h:315 ./include/linux/refcount.h:333 ./include/net/sock.h:1990 net/core/skmsg.c:828)
[    7.867579] process_one_work (kernel/workqueue.c:2630)
[    7.868120] worker_thread (kernel/workqueue.c:2697 (discriminator 2) kernel/workqueue.c:2784 (discriminator 2))
[    7.868363] ? rescuer_thread (kernel/workqueue.c:2730)
[    7.868589] kthread (kernel/kthread.c:388)
[    7.869017] ? kthread_complete_and_exit (kernel/kthread.c:341)
[    7.869716] ret_from_fork (arch/x86/kernel/process.c:147)
[    7.870273] ? kthread_complete_and_exit (kernel/kthread.c:341)
[    7.870889] ret_from_fork_asm (arch/x86/entry/entry_64.S:312)
[    7.871374]  </TASK>
[    7.871818] irq event stamp: 2515
[    7.872285] hardirqs last enabled at (2523): console_unlock (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 ./arch/x86/include/asm/irqflags.h:135 kernel/printk/printk.c:347 kernel/printk/printk.c:2720 kernel/printk/printk.c:3039)
[    7.873173] hardirqs last disabled at (2532): console_unlock (kernel/printk/printk.c:345 (discriminator 3) kernel/printk/printk.c:2720 (discriminator 3) kernel/printk/printk.c:3039 (discriminator 3))
[    7.874103] softirqs last enabled at (2190): __do_softirq (./arch/x86/include/asm/preempt.h:27 kernel/softirq.c:400 kernel/softirq.c:582)
[    7.875196] softirqs last disabled at (2185): irq_exit_rcu (kernel/softirq.c:427 kernel/softirq.c:632 kernel/softirq.c:644)
[    7.875811] ---[ end trace 0000000000000000 ]---

--8<--

bash-5.2# ./test_progs -t sockmap
[    7.691453] bpf_testmod: loading out-of-tree module taints kernel.
[    7.691759] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
#24      bpf_sockmap_map_iter_fd:OK
#211/1   sockmap_basic/sockmap create_update_free:OK
#211/2   sockmap_basic/sockhash create_update_free:OK
#211/3   sockmap_basic/sockmap sk_msg load helpers:OK
#211/4   sockmap_basic/sockhash sk_msg load helpers:OK
#211/5   sockmap_basic/sockmap update:OK
#211/6   sockmap_basic/sockhash update:OK
#211/7   sockmap_basic/sockmap update in unsafe context:OK
#211/8   sockmap_basic/sockmap copy:OK
#211/9   sockmap_basic/sockhash copy:OK
#211/10  sockmap_basic/sockmap skb_verdict attach:OK
#211/11  sockmap_basic/sockmap msg_verdict progs query:OK
#211/12  sockmap_basic/sockmap stream_parser progs query:OK
#211/13  sockmap_basic/sockmap stream_verdict progs query:OK
#211/14  sockmap_basic/sockmap skb_verdict progs query:OK
#211/15  sockmap_basic/sockmap skb_verdict shutdown:OK
#211/16  sockmap_basic/sockmap skb_verdict fionread:OK
#211/17  sockmap_basic/sockmap skb_verdict fionread on drop:OK
#211/18  sockmap_basic/sockmap msg_verdict:OK
#211/19  sockmap_basic/sockmap msg_verdict ingress:OK
#211/20  sockmap_basic/sockmap msg_verdict permanent:OK
#211/21  sockmap_basic/sockmap msg_verdict ingress permanent:OK
#211/22  sockmap_basic/sockmap msg_verdict permanent self:OK
#211/23  sockmap_basic/sockmap msg_verdict ingress permanent self:OK
#211/24  sockmap_basic/sockmap msg_verdict permanent shutdown:OK
#211/25  sockmap_basic/sockmap msg_verdict ingress permanent shutdown:OK
#211/26  sockmap_basic/sockmap msg_verdict shutdown:OK
#211/27  sockmap_basic/sockmap msg_verdict ingress shutdown:OK
#211     sockmap_basic:OK
#212/1   sockmap_ktls/sockmap_ktls disconnect_after_delete IPv4 SOCKMAP:OK
#212/2   sockmap_ktls/sockmap_ktls update_fails_when_sock_has_ulp IPv4 SOCKMAP:OK
#212/3   sockmap_ktls/sockmap_ktls disconnect_after_delete IPv4 SOCKMAP:OK
#212/4   sockmap_ktls/sockmap_ktls update_fails_when_sock_has_ulp IPv4 SOCKMAP:OK
#212/5   sockmap_ktls/sockmap_ktls disconnect_after_delete IPv4 SOCKMAP:OK
#212/6   sockmap_ktls/sockmap_ktls update_fails_when_sock_has_ulp IPv4 SOCKMAP:OK
#212/7   sockmap_ktls/sockmap_ktls disconnect_after_delete IPv4 SOCKMAP:OK
#212/8   sockmap_ktls/sockmap_ktls update_fails_when_sock_has_ulp IPv4 SOCKMAP:OK
#212     sockmap_ktls:OK
[    7.846863] ------------[ cut here ]------------
[    7.847383] refcount_t: underflow; use-after-free.
[    7.847919] WARNING: CPU: 3 PID: 36 at lib/refcount.c:28 refcount_warn_saturate+0xc2/0x110
[    7.848719] Modules linked in: bpf_testmod(OE)
[    7.849207] CPU: 3 PID: 36 Comm: kworker/3:0 Tainted: G           OE      6.5.0+ #13
[    7.850364] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-1.fc38 04/01/2014
[    7.851893] Workqueue: events sk_psock_destroy
[    7.852617] RIP: 0010:refcount_warn_saturate+0xc2/0x110
[    7.853383] Code: 01 e8 32 f0 a9 ff 0f 0b 5d c3 cc cc cc cc 80 3d 24 c5 01 02 00 75 81 48 c7 c7 98 cc 77 82 c6 05 14 c5 01 02 01 e8 0e f0 a9 ff <0f> 0b 5d c3 cc cc cc cc 80 3d 01 c5 01 02 00 0f 85 59 ff ff ff 48
[    7.855330] RSP: 0018:ffffc9000014bdd8 EFLAGS: 00010282
[    7.855891] RAX: 0000000000000000 RBX: ffff888104ea0438 RCX: 0000000000000000
[    7.856539] RDX: 0000000000000002 RSI: ffffc9000014bc50 RDI: 00000000ffffffff
[    7.857348] RBP: ffffc9000014bdd8 R08: 0000000000000000 R09: ffffffff82e9bd60
[    7.858088] R10: ffffc9000014bc48 R11: ffffffff8359bda8 R12: ffff888104ea0268
[    7.858956] R13: ffff888104ea0268 R14: ffff888104ea0268 R15: dead000000000100
[    7.859687] FS:  0000000000000000(0000) GS:ffff88813bd80000(0000) knlGS:0000000000000000
[    7.860349] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.861013] CR2: 00007f4e2d2a7f78 CR3: 0000000002e6e002 CR4: 0000000000770ea0
[    7.862014] PKRU: 55555554
[    7.862224] Call Trace:
[    7.862515]  <TASK>
[    7.862719]  ? show_regs+0x60/0x70
[    7.863159]  ? __warn+0x84/0x180
[    7.863521]  ? refcount_warn_saturate+0xc2/0x110
[    7.864073]  ? report_bug+0x192/0x1c0
[    7.864523]  ? handle_bug+0x42/0x80
[    7.864954]  ? exc_invalid_op+0x18/0x70
[    7.865379]  ? asm_exc_invalid_op+0x1b/0x20
[    7.866011]  ? refcount_warn_saturate+0xc2/0x110
[    7.866613]  ? refcount_warn_saturate+0xc2/0x110
[    7.867159]  sk_psock_destroy+0x2c5/0x2e0
[    7.867579]  process_one_work+0x1fe/0x4f0
[    7.868120]  worker_thread+0x1d6/0x3d0
[    7.868363]  ? rescuer_thread+0x380/0x380
[    7.868589]  kthread+0x106/0x140
[    7.869017]  ? kthread_complete_and_exit+0x20/0x20
[    7.869716]  ret_from_fork+0x35/0x60
[    7.870273]  ? kthread_complete_and_exit+0x20/0x20
[    7.870889]  ret_from_fork_asm+0x11/0x20
[    7.871374]  </TASK>
[    7.871818] irq event stamp: 2515
[    7.872285] hardirqs last  enabled at (2523): [<ffffffff811ae505>] console_unlock+0x105/0x130
[    7.873173] hardirqs last disabled at (2532): [<ffffffff811ae4ea>] console_unlock+0xea/0x130
[    7.874103] softirqs last  enabled at (2190): [<ffffffff81d21495>] __do_softirq+0x2f5/0x3f3
[    7.875196] softirqs last disabled at (2185): [<ffffffff8112d18f>] irq_exit_rcu+0x8f/0xf0
[    7.875811] ---[ end trace 0000000000000000 ]---
#213/1   sockmap_listen/sockmap IPv4 TCP test_insert_invalid:OK
#213/2   sockmap_listen/sockmap IPv4 TCP test_insert_opened:OK
#213/3   sockmap_listen/sockmap IPv4 TCP test_insert_bound:OK
#213/4   sockmap_listen/sockmap IPv4 TCP test_insert:OK
#213/5   sockmap_listen/sockmap IPv4 TCP test_delete_after_insert:OK
#213/6   sockmap_listen/sockmap IPv4 TCP test_delete_after_close:OK
#213/7   sockmap_listen/sockmap IPv4 TCP test_lookup_after_insert:OK
#213/8   sockmap_listen/sockmap IPv4 TCP test_lookup_after_delete:OK
#213/9   sockmap_listen/sockmap IPv4 TCP test_lookup_32_bit_value:OK
#213/10  sockmap_listen/sockmap IPv4 TCP test_update_existing:OK
#213/11  sockmap_listen/sockmap IPv4 TCP test_destroy_orphan_child:OK
#213/12  sockmap_listen/sockmap IPv4 TCP test_syn_recv_insert_delete:OK
#213/13  sockmap_listen/sockmap IPv4 TCP test_race_insert_listen:OK
#213/14  sockmap_listen/sockmap IPv4 TCP test_clone_after_delete:OK
#213/15  sockmap_listen/sockmap IPv4 TCP test_accept_after_delete:OK
#213/16  sockmap_listen/sockmap IPv4 TCP test_accept_before_delete:OK
#213/17  sockmap_listen/sockmap IPv4 UDP test_insert_invalid:OK
#213/18  sockmap_listen/sockmap IPv4 UDP test_insert_opened:OK
#213/19  sockmap_listen/sockmap IPv4 UDP test_insert:OK
#213/20  sockmap_listen/sockmap IPv4 UDP test_delete_after_insert:OK
#213/21  sockmap_listen/sockmap IPv4 UDP test_delete_after_close:OK
#213/22  sockmap_listen/sockmap IPv4 UDP test_lookup_after_insert:OK
#213/23  sockmap_listen/sockmap IPv4 UDP test_lookup_after_delete:OK
#213/24  sockmap_listen/sockmap IPv4 UDP test_lookup_32_bit_value:OK
#213/25  sockmap_listen/sockmap IPv4 UDP test_update_existing:OK
#213/26  sockmap_listen/sockmap IPv4 test_skb_redir_to_connected:OK
#213/27  sockmap_listen/sockmap IPv4 test_skb_redir_to_listening:OK
#213/28  sockmap_listen/sockmap IPv4 test_skb_redir_partial:OK
#213/29  sockmap_listen/sockmap IPv4 test_msg_redir_to_connected:OK
#213/30  sockmap_listen/sockmap IPv4 test_msg_redir_to_listening:OK
#213/31  sockmap_listen/sockmap IPv4 TCP test_reuseport_select_listening:OK
#213/32  sockmap_listen/sockmap IPv4 TCP test_reuseport_select_connected:OK
#213/33  sockmap_listen/sockmap IPv4 TCP test_reuseport_mixed_groups:OK
#213/34  sockmap_listen/sockmap IPv4 UDP test_reuseport_select_listening:OK
#213/35  sockmap_listen/sockmap IPv4 UDP test_reuseport_select_connected:OK
#213/36  sockmap_listen/sockmap IPv4 UDP test_reuseport_mixed_groups:OK
#213/37  sockmap_listen/sockmap IPv4 test_udp_redir:OK
#213/38  sockmap_listen/sockmap IPv4 test_udp_unix_redir:OK
#213/39  sockmap_listen/sockmap IPv6 TCP test_insert_invalid:OK
#213/40  sockmap_listen/sockmap IPv6 TCP test_insert_opened:OK
#213/41  sockmap_listen/sockmap IPv6 TCP test_insert_bound:OK
#213/42  sockmap_listen/sockmap IPv6 TCP test_insert:OK
#213/43  sockmap_listen/sockmap IPv6 TCP test_delete_after_insert:OK
#213/44  sockmap_listen/sockmap IPv6 TCP test_delete_after_close:OK
#213/45  sockmap_listen/sockmap IPv6 TCP test_lookup_after_insert:OK
#213/46  sockmap_listen/sockmap IPv6 TCP test_lookup_after_delete:OK
#213/47  sockmap_listen/sockmap IPv6 TCP test_lookup_32_bit_value:OK
#213/48  sockmap_listen/sockmap IPv6 TCP test_update_existing:OK
#213/49  sockmap_listen/sockmap IPv6 TCP test_destroy_orphan_child:OK
#213/50  sockmap_listen/sockmap IPv6 TCP test_syn_recv_insert_delete:OK
#213/51  sockmap_listen/sockmap IPv6 TCP test_race_insert_listen:OK
#213/52  sockmap_listen/sockmap IPv6 TCP test_clone_after_delete:OK
#213/53  sockmap_listen/sockmap IPv6 TCP test_accept_after_delete:OK
#213/54  sockmap_listen/sockmap IPv6 TCP test_accept_before_delete:OK
#213/55  sockmap_listen/sockmap IPv6 UDP test_insert_invalid:OK
#213/56  sockmap_listen/sockmap IPv6 UDP test_insert_opened:OK
#213/57  sockmap_listen/sockmap IPv6 UDP test_insert:OK
#213/58  sockmap_listen/sockmap IPv6 UDP test_delete_after_insert:OK
#213/59  sockmap_listen/sockmap IPv6 UDP test_delete_after_close:OK
#213/60  sockmap_listen/sockmap IPv6 UDP test_lookup_after_insert:OK
#213/61  sockmap_listen/sockmap IPv6 UDP test_lookup_after_delete:OK
#213/62  sockmap_listen/sockmap IPv6 UDP test_lookup_32_bit_value:OK
#213/63  sockmap_listen/sockmap IPv6 UDP test_update_existing:OK
#213/64  sockmap_listen/sockmap IPv6 test_skb_redir_to_connected:OK
#213/65  sockmap_listen/sockmap IPv6 test_skb_redir_to_listening:OK
#213/66  sockmap_listen/sockmap IPv6 test_skb_redir_partial:OK
#213/67  sockmap_listen/sockmap IPv6 test_msg_redir_to_connected:OK
#213/68  sockmap_listen/sockmap IPv6 test_msg_redir_to_listening:OK
#213/69  sockmap_listen/sockmap IPv6 TCP test_reuseport_select_listening:OK
#213/70  sockmap_listen/sockmap IPv6 TCP test_reuseport_select_connected:OK
#213/71  sockmap_listen/sockmap IPv6 TCP test_reuseport_mixed_groups:OK
#213/72  sockmap_listen/sockmap IPv6 UDP test_reuseport_select_listening:OK
#213/73  sockmap_listen/sockmap IPv6 UDP test_reuseport_select_connected:OK
#213/74  sockmap_listen/sockmap IPv6 UDP test_reuseport_mixed_groups:OK
#213/75  sockmap_listen/sockmap IPv6 test_udp_redir:OK
#213/76  sockmap_listen/sockmap IPv6 test_udp_unix_redir:OK
#213/77  sockmap_listen/sockmap Unix test_unix_redir:OK
#213/78  sockmap_listen/sockmap Unix test_unix_redir:OK
#213/79  sockmap_listen/sockmap VSOCK test_vsock_redir:OK
#213/80  sockmap_listen/sockhash IPv4 TCP test_insert_invalid:OK
#213/81  sockmap_listen/sockhash IPv4 TCP test_insert_opened:OK
#213/82  sockmap_listen/sockhash IPv4 TCP test_insert_bound:OK
#213/83  sockmap_listen/sockhash IPv4 TCP test_insert:OK
#213/84  sockmap_listen/sockhash IPv4 TCP test_delete_after_insert:OK
#213/85  sockmap_listen/sockhash IPv4 TCP test_delete_after_close:OK
#213/86  sockmap_listen/sockhash IPv4 TCP test_lookup_after_insert:OK
#213/87  sockmap_listen/sockhash IPv4 TCP test_lookup_after_delete:OK
#213/88  sockmap_listen/sockhash IPv4 TCP test_lookup_32_bit_value:OK
#213/89  sockmap_listen/sockhash IPv4 TCP test_update_existing:OK
#213/90  sockmap_listen/sockhash IPv4 TCP test_destroy_orphan_child:OK
#213/91  sockmap_listen/sockhash IPv4 TCP test_syn_recv_insert_delete:OK
#213/92  sockmap_listen/sockhash IPv4 TCP test_race_insert_listen:OK
#213/93  sockmap_listen/sockhash IPv4 TCP test_clone_after_delete:OK
#213/94  sockmap_listen/sockhash IPv4 TCP test_accept_after_delete:OK
#213/95  sockmap_listen/sockhash IPv4 TCP test_accept_before_delete:OK
#213/96  sockmap_listen/sockhash IPv4 UDP test_insert_invalid:OK
#213/97  sockmap_listen/sockhash IPv4 UDP test_insert_opened:OK
#213/98  sockmap_listen/sockhash IPv4 UDP test_insert:OK
#213/99  sockmap_listen/sockhash IPv4 UDP test_delete_after_insert:OK
#213/100 sockmap_listen/sockhash IPv4 UDP test_delete_after_close:OK
#213/101 sockmap_listen/sockhash IPv4 UDP test_lookup_after_insert:OK
#213/102 sockmap_listen/sockhash IPv4 UDP test_lookup_after_delete:OK
#213/103 sockmap_listen/sockhash IPv4 UDP test_lookup_32_bit_value:OK
#213/104 sockmap_listen/sockhash IPv4 UDP test_update_existing:OK
#213/105 sockmap_listen/sockhash IPv4 test_skb_redir_to_connected:OK
#213/106 sockmap_listen/sockhash IPv4 test_skb_redir_to_listening:OK
#213/107 sockmap_listen/sockhash IPv4 test_skb_redir_partial:OK
#213/108 sockmap_listen/sockhash IPv4 test_msg_redir_to_connected:OK
#213/109 sockmap_listen/sockhash IPv4 test_msg_redir_to_listening:OK
#213/110 sockmap_listen/sockhash IPv4 TCP test_reuseport_select_listening:OK
#213/111 sockmap_listen/sockhash IPv4 TCP test_reuseport_select_connected:OK
#213/112 sockmap_listen/sockhash IPv4 TCP test_reuseport_mixed_groups:OK
#213/113 sockmap_listen/sockhash IPv4 UDP test_reuseport_select_listening:OK
#213/114 sockmap_listen/sockhash IPv4 UDP test_reuseport_select_connected:OK
#213/115 sockmap_listen/sockhash IPv4 UDP test_reuseport_mixed_groups:OK
#213/116 sockmap_listen/sockhash IPv4 test_udp_redir:OK
#213/117 sockmap_listen/sockhash IPv4 test_udp_unix_redir:OK
#213/118 sockmap_listen/sockhash IPv6 TCP test_insert_invalid:OK
#213/119 sockmap_listen/sockhash IPv6 TCP test_insert_opened:OK
#213/120 sockmap_listen/sockhash IPv6 TCP test_insert_bound:OK
#213/121 sockmap_listen/sockhash IPv6 TCP test_insert:OK
#213/122 sockmap_listen/sockhash IPv6 TCP test_delete_after_insert:OK
#213/123 sockmap_listen/sockhash IPv6 TCP test_delete_after_close:OK
#213/124 sockmap_listen/sockhash IPv6 TCP test_lookup_after_insert:OK
#213/125 sockmap_listen/sockhash IPv6 TCP test_lookup_after_delete:OK
#213/126 sockmap_listen/sockhash IPv6 TCP test_lookup_32_bit_value:OK
#213/127 sockmap_listen/sockhash IPv6 TCP test_update_existing:OK
#213/128 sockmap_listen/sockhash IPv6 TCP test_destroy_orphan_child:OK
#213/129 sockmap_listen/sockhash IPv6 TCP test_syn_recv_insert_delete:OK
#213/130 sockmap_listen/sockhash IPv6 TCP test_race_insert_listen:OK
#213/131 sockmap_listen/sockhash IPv6 TCP test_clone_after_delete:OK
#213/132 sockmap_listen/sockhash IPv6 TCP test_accept_after_delete:OK
#213/133 sockmap_listen/sockhash IPv6 TCP test_accept_before_delete:OK
#213/134 sockmap_listen/sockhash IPv6 UDP test_insert_invalid:OK
#213/135 sockmap_listen/sockhash IPv6 UDP test_insert_opened:OK
#213/136 sockmap_listen/sockhash IPv6 UDP test_insert:OK
#213/137 sockmap_listen/sockhash IPv6 UDP test_delete_after_insert:OK
#213/138 sockmap_listen/sockhash IPv6 UDP test_delete_after_close:OK
#213/139 sockmap_listen/sockhash IPv6 UDP test_lookup_after_insert:OK
#213/140 sockmap_listen/sockhash IPv6 UDP test_lookup_after_delete:OK
#213/141 sockmap_listen/sockhash IPv6 UDP test_lookup_32_bit_value:OK
#213/142 sockmap_listen/sockhash IPv6 UDP test_update_existing:OK
#213/143 sockmap_listen/sockhash IPv6 test_skb_redir_to_connected:OK
#213/144 sockmap_listen/sockhash IPv6 test_skb_redir_to_listening:OK
#213/145 sockmap_listen/sockhash IPv6 test_skb_redir_partial:OK
#213/146 sockmap_listen/sockhash IPv6 test_msg_redir_to_connected:OK
#213/147 sockmap_listen/sockhash IPv6 test_msg_redir_to_listening:OK
#213/148 sockmap_listen/sockhash IPv6 TCP test_reuseport_select_listening:OK
#213/149 sockmap_listen/sockhash IPv6 TCP test_reuseport_select_connected:OK
#213/150 sockmap_listen/sockhash IPv6 TCP test_reuseport_mixed_groups:OK
#213/151 sockmap_listen/sockhash IPv6 UDP test_reuseport_select_listening:OK
#213/152 sockmap_listen/sockhash IPv6 UDP test_reuseport_select_connected:OK
#213/153 sockmap_listen/sockhash IPv6 UDP test_reuseport_mixed_groups:OK
#213/154 sockmap_listen/sockhash IPv6 test_udp_redir:OK
#213/155 sockmap_listen/sockhash IPv6 test_udp_unix_redir:OK
#213/156 sockmap_listen/sockhash Unix test_unix_redir:OK
#213/157 sockmap_listen/sockhash Unix test_unix_redir:OK
#213/158 sockmap_listen/sockhash VSOCK test_vsock_redir:OK
#213     sockmap_listen:OK
Summary: 4/193 PASSED, 0 SKIPPED, 0 FAILED
bash-5.2#
liujian (CE) Sept. 15, 2023, 1:05 a.m. UTC | #4 
On 2023/9/13 1:21, Jakub Sitnicki wrote:
> On Sat, Sep 02, 2023 at 06:07 PM +08, Liu Jian wrote:
>> v3->v4: Change the two helpers's description.
>> 	Let BPF_F_PERMANENT takes precedence over apply/cork_bytes.
> 
> I gave it another try. But somethings is still not right.
> 
> sockmap tests run cleanly for me on bpf tree @ 4eb94a779307.
> 
> But with this patch set applied I'm seeing a refcount splat. Please see
> the sample session log at the end. Reproducible every time.
> 
> I've also included the warning itself with the stack trace decoded. Once
> again, this is commit 4eb94a779307 with these patches on top.
> 
> I'm preparing for a talk that is in a few weeks [1], so unfortunately I
> have limited cycles to help debug this.
I'll try and debug this issue. Thank you for taking the time to review it.
> 
> [1] https://www.usenix.org/conference/srecon23emea/presentation/sitnicki
> 
> $ ./scripts/decode_stacktrace.sh ./vmlinux < trace.txt
> [    7.846863] ------------[ cut here ]------------
> [    7.847383] refcount_t: underflow; use-after-free.
> [    7.847919] WARNING: CPU: 3 PID: 36 at lib/refcount.c:28 refcount_warn_saturate (lib/refcount.c:28 (discriminator 1))
> [    7.848719] Modules linked in: bpf_testmod(OE)
> [    7.850364] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-1.fc38 04/01/2014
> [    7.851893] Workqueue: events sk_psock_destroy
> [    7.852617] RIP: 0010:refcount_warn_saturate (lib/refcount.c:28 (discriminator 1))
> [ 7.853383] Code: 01 e8 32 f0 a9 ff 0f 0b 5d c3 cc cc cc cc 80 3d 24 c5 01 02 00 75 81 48 c7 c7 98 cc 77 82 c6 05 14 c5 01 02 01 e8 0e f0 a9 ff <0f> 0b 5d c3 cc cc cc cc 80 3d 01 c5 01 02 00 0f 85 59 ff ff ff 48
> All code
> ========
>     0:   01 e8                   add    %ebp,%eax
>     2:   32 f0                   xor    %al,%dh
>     4:   a9 ff 0f 0b 5d          test   $0x5d0b0fff,%eax
>     9:   c3                      ret
>     a:   cc                      int3
>     b:   cc                      int3
>     c:   cc                      int3
>     d:   cc                      int3
>     e:   80 3d 24 c5 01 02 00    cmpb   $0x0,0x201c524(%rip)        # 0x201c539
>    15:   75 81                   jne    0xffffffffffffff98
>    17:   48 c7 c7 98 cc 77 82    mov    $0xffffffff8277cc98,%rdi
>    1e:   c6 05 14 c5 01 02 01    movb   $0x1,0x201c514(%rip)        # 0x201c539
>    25:   e8 0e f0 a9 ff          call   0xffffffffffa9f038
>    2a:*  0f 0b                   ud2             <-- trapping instruction
>    2c:   5d                      pop    %rbp
>    2d:   c3                      ret
>    2e:   cc                      int3
>    2f:   cc                      int3
>    30:   cc                      int3
>    31:   cc                      int3
>    32:   80 3d 01 c5 01 02 00    cmpb   $0x0,0x201c501(%rip)        # 0x201c53a
>    39:   0f 85 59 ff ff ff       jne    0xffffffffffffff98
>    3f:   48                      rex.W
> 
> Code starting with the faulting instruction
> ===========================================
>     0:   0f 0b                   ud2
>     2:   5d                      pop    %rbp
>     3:   c3                      ret
>     4:   cc                      int3
>     5:   cc                      int3
>     6:   cc                      int3
>     7:   cc                      int3
>     8:   80 3d 01 c5 01 02 00    cmpb   $0x0,0x201c501(%rip)        # 0x201c510
>     f:   0f 85 59 ff ff ff       jne    0xffffffffffffff6e
>    15:   48                      rex.W
> [    7.855330] RSP: 0018:ffffc9000014bdd8 EFLAGS: 00010282
> [    7.855891] RAX: 0000000000000000 RBX: ffff888104ea0438 RCX: 0000000000000000
> [    7.856539] RDX: 0000000000000002 RSI: ffffc9000014bc50 RDI: 00000000ffffffff
> [    7.857348] RBP: ffffc9000014bdd8 R08: 0000000000000000 R09: ffffffff82e9bd60
> [    7.858088] R10: ffffc9000014bc48 R11: ffffffff8359bda8 R12: ffff888104ea0268
> [    7.858956] R13: ffff888104ea0268 R14: ffff888104ea0268 R15: dead000000000100
> [    7.859687] FS:  0000000000000000(0000) GS:ffff88813bd80000(0000) knlGS:0000000000000000
> [    7.860349] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [    7.861013] CR2: 00007f4e2d2a7f78 CR3: 0000000002e6e002 CR4: 0000000000770ea0
> [    7.862014] PKRU: 55555554
> [    7.862224] Call Trace:
> [    7.862515]  <TASK>
> [    7.862719] ? show_regs (arch/x86/kernel/dumpstack.c:479)
> [    7.863159] ? __warn (kernel/panic.c:673)
> [    7.863521] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 1))
> [    7.864073] ? report_bug (lib/bug.c:180 lib/bug.c:219)
> [    7.864523] ? handle_bug (arch/x86/kernel/traps.c:237)
> [    7.864954] ? exc_invalid_op (arch/x86/kernel/traps.c:258 (discriminator 1))
> [    7.865379] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568)
> [    7.866011] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 1))
> [    7.866613] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 1))
> [    7.867159] sk_psock_destroy (./include/linux/refcount.h:283 ./include/linux/refcount.h:315 ./include/linux/refcount.h:333 ./include/net/sock.h:1990 net/core/skmsg.c:828)
> [    7.867579] process_one_work (kernel/workqueue.c:2630)
> [    7.868120] worker_thread (kernel/workqueue.c:2697 (discriminator 2) kernel/workqueue.c:2784 (discriminator 2))
> [    7.868363] ? rescuer_thread (kernel/workqueue.c:2730)
> [    7.868589] kthread (kernel/kthread.c:388)
> [    7.869017] ? kthread_complete_and_exit (kernel/kthread.c:341)
> [    7.869716] ret_from_fork (arch/x86/kernel/process.c:147)
> [    7.870273] ? kthread_complete_and_exit (kernel/kthread.c:341)
> [    7.870889] ret_from_fork_asm (arch/x86/entry/entry_64.S:312)
> [    7.871374]  </TASK>
> [    7.871818] irq event stamp: 2515
> [    7.872285] hardirqs last enabled at (2523): console_unlock (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 ./arch/x86/include/asm/irqflags.h:135 kernel/printk/printk.c:347 kernel/printk/printk.c:2720 kernel/printk/printk.c:3039)
> [    7.873173] hardirqs last disabled at (2532): console_unlock (kernel/printk/printk.c:345 (discriminator 3) kernel/printk/printk.c:2720 (discriminator 3) kernel/printk/printk.c:3039 (discriminator 3))
> [    7.874103] softirqs last enabled at (2190): __do_softirq (./arch/x86/include/asm/preempt.h:27 kernel/softirq.c:400 kernel/softirq.c:582)
> [    7.875196] softirqs last disabled at (2185): irq_exit_rcu (kernel/softirq.c:427 kernel/softirq.c:632 kernel/softirq.c:644)
> [    7.875811] ---[ end trace 0000000000000000 ]---
> 
> --8<--
> 
> bash-5.2# ./test_progs -t sockmap
> [    7.691453] bpf_testmod: loading out-of-tree module taints kernel.
> [    7.691759] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
> #24      bpf_sockmap_map_iter_fd:OK
> #211/1   sockmap_basic/sockmap create_update_free:OK
> #211/2   sockmap_basic/sockhash create_update_free:OK
> #211/3   sockmap_basic/sockmap sk_msg load helpers:OK
> #211/4   sockmap_basic/sockhash sk_msg load helpers:OK
> #211/5   sockmap_basic/sockmap update:OK
> #211/6   sockmap_basic/sockhash update:OK
> #211/7   sockmap_basic/sockmap update in unsafe context:OK
> #211/8   sockmap_basic/sockmap copy:OK
> #211/9   sockmap_basic/sockhash copy:OK
> #211/10  sockmap_basic/sockmap skb_verdict attach:OK
> #211/11  sockmap_basic/sockmap msg_verdict progs query:OK
> #211/12  sockmap_basic/sockmap stream_parser progs query:OK
> #211/13  sockmap_basic/sockmap stream_verdict progs query:OK
> #211/14  sockmap_basic/sockmap skb_verdict progs query:OK
> #211/15  sockmap_basic/sockmap skb_verdict shutdown:OK
> #211/16  sockmap_basic/sockmap skb_verdict fionread:OK
> #211/17  sockmap_basic/sockmap skb_verdict fionread on drop:OK
> #211/18  sockmap_basic/sockmap msg_verdict:OK
> #211/19  sockmap_basic/sockmap msg_verdict ingress:OK
> #211/20  sockmap_basic/sockmap msg_verdict permanent:OK
> #211/21  sockmap_basic/sockmap msg_verdict ingress permanent:OK
> #211/22  sockmap_basic/sockmap msg_verdict permanent self:OK
> #211/23  sockmap_basic/sockmap msg_verdict ingress permanent self:OK
> #211/24  sockmap_basic/sockmap msg_verdict permanent shutdown:OK
> #211/25  sockmap_basic/sockmap msg_verdict ingress permanent shutdown:OK
> #211/26  sockmap_basic/sockmap msg_verdict shutdown:OK
> #211/27  sockmap_basic/sockmap msg_verdict ingress shutdown:OK
> #211     sockmap_basic:OK
> #212/1   sockmap_ktls/sockmap_ktls disconnect_after_delete IPv4 SOCKMAP:OK
> #212/2   sockmap_ktls/sockmap_ktls update_fails_when_sock_has_ulp IPv4 SOCKMAP:OK
> #212/3   sockmap_ktls/sockmap_ktls disconnect_after_delete IPv4 SOCKMAP:OK
> #212/4   sockmap_ktls/sockmap_ktls update_fails_when_sock_has_ulp IPv4 SOCKMAP:OK
> #212/5   sockmap_ktls/sockmap_ktls disconnect_after_delete IPv4 SOCKMAP:OK
> #212/6   sockmap_ktls/sockmap_ktls update_fails_when_sock_has_ulp IPv4 SOCKMAP:OK
> #212/7   sockmap_ktls/sockmap_ktls disconnect_after_delete IPv4 SOCKMAP:OK
> #212/8   sockmap_ktls/sockmap_ktls update_fails_when_sock_has_ulp IPv4 SOCKMAP:OK
> #212     sockmap_ktls:OK
> [    7.846863] ------------[ cut here ]------------
> [    7.847383] refcount_t: underflow; use-after-free.
> [    7.847919] WARNING: CPU: 3 PID: 36 at lib/refcount.c:28 refcount_warn_saturate+0xc2/0x110
> [    7.848719] Modules linked in: bpf_testmod(OE)
> [    7.849207] CPU: 3 PID: 36 Comm: kworker/3:0 Tainted: G           OE      6.5.0+ #13
> [    7.850364] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-1.fc38 04/01/2014
> [    7.851893] Workqueue: events sk_psock_destroy
> [    7.852617] RIP: 0010:refcount_warn_saturate+0xc2/0x110
> [    7.853383] Code: 01 e8 32 f0 a9 ff 0f 0b 5d c3 cc cc cc cc 80 3d 24 c5 01 02 00 75 81 48 c7 c7 98 cc 77 82 c6 05 14 c5 01 02 01 e8 0e f0 a9 ff <0f> 0b 5d c3 cc cc cc cc 80 3d 01 c5 01 02 00 0f 85 59 ff ff ff 48
> [    7.855330] RSP: 0018:ffffc9000014bdd8 EFLAGS: 00010282
> [    7.855891] RAX: 0000000000000000 RBX: ffff888104ea0438 RCX: 0000000000000000
> [    7.856539] RDX: 0000000000000002 RSI: ffffc9000014bc50 RDI: 00000000ffffffff
> [    7.857348] RBP: ffffc9000014bdd8 R08: 0000000000000000 R09: ffffffff82e9bd60
> [    7.858088] R10: ffffc9000014bc48 R11: ffffffff8359bda8 R12: ffff888104ea0268
> [    7.858956] R13: ffff888104ea0268 R14: ffff888104ea0268 R15: dead000000000100
> [    7.859687] FS:  0000000000000000(0000) GS:ffff88813bd80000(0000) knlGS:0000000000000000
> [    7.860349] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [    7.861013] CR2: 00007f4e2d2a7f78 CR3: 0000000002e6e002 CR4: 0000000000770ea0
> [    7.862014] PKRU: 55555554
> [    7.862224] Call Trace:
> [    7.862515]  <TASK>
> [    7.862719]  ? show_regs+0x60/0x70
> [    7.863159]  ? __warn+0x84/0x180
> [    7.863521]  ? refcount_warn_saturate+0xc2/0x110
> [    7.864073]  ? report_bug+0x192/0x1c0
> [    7.864523]  ? handle_bug+0x42/0x80
> [    7.864954]  ? exc_invalid_op+0x18/0x70
> [    7.865379]  ? asm_exc_invalid_op+0x1b/0x20
> [    7.866011]  ? refcount_warn_saturate+0xc2/0x110
> [    7.866613]  ? refcount_warn_saturate+0xc2/0x110
> [    7.867159]  sk_psock_destroy+0x2c5/0x2e0
> [    7.867579]  process_one_work+0x1fe/0x4f0
> [    7.868120]  worker_thread+0x1d6/0x3d0
> [    7.868363]  ? rescuer_thread+0x380/0x380
> [    7.868589]  kthread+0x106/0x140
> [    7.869017]  ? kthread_complete_and_exit+0x20/0x20
> [    7.869716]  ret_from_fork+0x35/0x60
> [    7.870273]  ? kthread_complete_and_exit+0x20/0x20
> [    7.870889]  ret_from_fork_asm+0x11/0x20
> [    7.871374]  </TASK>
> [    7.871818] irq event stamp: 2515
> [    7.872285] hardirqs last  enabled at (2523): [<ffffffff811ae505>] console_unlock+0x105/0x130
> [    7.873173] hardirqs last disabled at (2532): [<ffffffff811ae4ea>] console_unlock+0xea/0x130
> [    7.874103] softirqs last  enabled at (2190): [<ffffffff81d21495>] __do_softirq+0x2f5/0x3f3
> [    7.875196] softirqs last disabled at (2185): [<ffffffff8112d18f>] irq_exit_rcu+0x8f/0xf0
> [    7.875811] ---[ end trace 0000000000000000 ]---
> #213/1   sockmap_listen/sockmap IPv4 TCP test_insert_invalid:OK
> #213/2   sockmap_listen/sockmap IPv4 TCP test_insert_opened:OK
> #213/3   sockmap_listen/sockmap IPv4 TCP test_insert_bound:OK
> #213/4   sockmap_listen/sockmap IPv4 TCP test_insert:OK
> #213/5   sockmap_listen/sockmap IPv4 TCP test_delete_after_insert:OK
> #213/6   sockmap_listen/sockmap IPv4 TCP test_delete_after_close:OK
> #213/7   sockmap_listen/sockmap IPv4 TCP test_lookup_after_insert:OK
> #213/8   sockmap_listen/sockmap IPv4 TCP test_lookup_after_delete:OK
> #213/9   sockmap_listen/sockmap IPv4 TCP test_lookup_32_bit_value:OK
> #213/10  sockmap_listen/sockmap IPv4 TCP test_update_existing:OK
> #213/11  sockmap_listen/sockmap IPv4 TCP test_destroy_orphan_child:OK
> #213/12  sockmap_listen/sockmap IPv4 TCP test_syn_recv_insert_delete:OK
> #213/13  sockmap_listen/sockmap IPv4 TCP test_race_insert_listen:OK
> #213/14  sockmap_listen/sockmap IPv4 TCP test_clone_after_delete:OK
> #213/15  sockmap_listen/sockmap IPv4 TCP test_accept_after_delete:OK
> #213/16  sockmap_listen/sockmap IPv4 TCP test_accept_before_delete:OK
> #213/17  sockmap_listen/sockmap IPv4 UDP test_insert_invalid:OK
> #213/18  sockmap_listen/sockmap IPv4 UDP test_insert_opened:OK
> #213/19  sockmap_listen/sockmap IPv4 UDP test_insert:OK
> #213/20  sockmap_listen/sockmap IPv4 UDP test_delete_after_insert:OK
> #213/21  sockmap_listen/sockmap IPv4 UDP test_delete_after_close:OK
> #213/22  sockmap_listen/sockmap IPv4 UDP test_lookup_after_insert:OK
> #213/23  sockmap_listen/sockmap IPv4 UDP test_lookup_after_delete:OK
> #213/24  sockmap_listen/sockmap IPv4 UDP test_lookup_32_bit_value:OK
> #213/25  sockmap_listen/sockmap IPv4 UDP test_update_existing:OK
> #213/26  sockmap_listen/sockmap IPv4 test_skb_redir_to_connected:OK
> #213/27  sockmap_listen/sockmap IPv4 test_skb_redir_to_listening:OK
> #213/28  sockmap_listen/sockmap IPv4 test_skb_redir_partial:OK
> #213/29  sockmap_listen/sockmap IPv4 test_msg_redir_to_connected:OK
> #213/30  sockmap_listen/sockmap IPv4 test_msg_redir_to_listening:OK
> #213/31  sockmap_listen/sockmap IPv4 TCP test_reuseport_select_listening:OK
> #213/32  sockmap_listen/sockmap IPv4 TCP test_reuseport_select_connected:OK
> #213/33  sockmap_listen/sockmap IPv4 TCP test_reuseport_mixed_groups:OK
> #213/34  sockmap_listen/sockmap IPv4 UDP test_reuseport_select_listening:OK
> #213/35  sockmap_listen/sockmap IPv4 UDP test_reuseport_select_connected:OK
> #213/36  sockmap_listen/sockmap IPv4 UDP test_reuseport_mixed_groups:OK
> #213/37  sockmap_listen/sockmap IPv4 test_udp_redir:OK
> #213/38  sockmap_listen/sockmap IPv4 test_udp_unix_redir:OK
> #213/39  sockmap_listen/sockmap IPv6 TCP test_insert_invalid:OK
> #213/40  sockmap_listen/sockmap IPv6 TCP test_insert_opened:OK
> #213/41  sockmap_listen/sockmap IPv6 TCP test_insert_bound:OK
> #213/42  sockmap_listen/sockmap IPv6 TCP test_insert:OK
> #213/43  sockmap_listen/sockmap IPv6 TCP test_delete_after_insert:OK
> #213/44  sockmap_listen/sockmap IPv6 TCP test_delete_after_close:OK
> #213/45  sockmap_listen/sockmap IPv6 TCP test_lookup_after_insert:OK
> #213/46  sockmap_listen/sockmap IPv6 TCP test_lookup_after_delete:OK
> #213/47  sockmap_listen/sockmap IPv6 TCP test_lookup_32_bit_value:OK
> #213/48  sockmap_listen/sockmap IPv6 TCP test_update_existing:OK
> #213/49  sockmap_listen/sockmap IPv6 TCP test_destroy_orphan_child:OK
> #213/50  sockmap_listen/sockmap IPv6 TCP test_syn_recv_insert_delete:OK
> #213/51  sockmap_listen/sockmap IPv6 TCP test_race_insert_listen:OK
> #213/52  sockmap_listen/sockmap IPv6 TCP test_clone_after_delete:OK
> #213/53  sockmap_listen/sockmap IPv6 TCP test_accept_after_delete:OK
> #213/54  sockmap_listen/sockmap IPv6 TCP test_accept_before_delete:OK
> #213/55  sockmap_listen/sockmap IPv6 UDP test_insert_invalid:OK
> #213/56  sockmap_listen/sockmap IPv6 UDP test_insert_opened:OK
> #213/57  sockmap_listen/sockmap IPv6 UDP test_insert:OK
> #213/58  sockmap_listen/sockmap IPv6 UDP test_delete_after_insert:OK
> #213/59  sockmap_listen/sockmap IPv6 UDP test_delete_after_close:OK
> #213/60  sockmap_listen/sockmap IPv6 UDP test_lookup_after_insert:OK
> #213/61  sockmap_listen/sockmap IPv6 UDP test_lookup_after_delete:OK
> #213/62  sockmap_listen/sockmap IPv6 UDP test_lookup_32_bit_value:OK
> #213/63  sockmap_listen/sockmap IPv6 UDP test_update_existing:OK
> #213/64  sockmap_listen/sockmap IPv6 test_skb_redir_to_connected:OK
> #213/65  sockmap_listen/sockmap IPv6 test_skb_redir_to_listening:OK
> #213/66  sockmap_listen/sockmap IPv6 test_skb_redir_partial:OK
> #213/67  sockmap_listen/sockmap IPv6 test_msg_redir_to_connected:OK
> #213/68  sockmap_listen/sockmap IPv6 test_msg_redir_to_listening:OK
> #213/69  sockmap_listen/sockmap IPv6 TCP test_reuseport_select_listening:OK
> #213/70  sockmap_listen/sockmap IPv6 TCP test_reuseport_select_connected:OK
> #213/71  sockmap_listen/sockmap IPv6 TCP test_reuseport_mixed_groups:OK
> #213/72  sockmap_listen/sockmap IPv6 UDP test_reuseport_select_listening:OK
> #213/73  sockmap_listen/sockmap IPv6 UDP test_reuseport_select_connected:OK
> #213/74  sockmap_listen/sockmap IPv6 UDP test_reuseport_mixed_groups:OK
> #213/75  sockmap_listen/sockmap IPv6 test_udp_redir:OK
> #213/76  sockmap_listen/sockmap IPv6 test_udp_unix_redir:OK
> #213/77  sockmap_listen/sockmap Unix test_unix_redir:OK
> #213/78  sockmap_listen/sockmap Unix test_unix_redir:OK
> #213/79  sockmap_listen/sockmap VSOCK test_vsock_redir:OK
> #213/80  sockmap_listen/sockhash IPv4 TCP test_insert_invalid:OK
> #213/81  sockmap_listen/sockhash IPv4 TCP test_insert_opened:OK
> #213/82  sockmap_listen/sockhash IPv4 TCP test_insert_bound:OK
> #213/83  sockmap_listen/sockhash IPv4 TCP test_insert:OK
> #213/84  sockmap_listen/sockhash IPv4 TCP test_delete_after_insert:OK
> #213/85  sockmap_listen/sockhash IPv4 TCP test_delete_after_close:OK
> #213/86  sockmap_listen/sockhash IPv4 TCP test_lookup_after_insert:OK
> #213/87  sockmap_listen/sockhash IPv4 TCP test_lookup_after_delete:OK
> #213/88  sockmap_listen/sockhash IPv4 TCP test_lookup_32_bit_value:OK
> #213/89  sockmap_listen/sockhash IPv4 TCP test_update_existing:OK
> #213/90  sockmap_listen/sockhash IPv4 TCP test_destroy_orphan_child:OK
> #213/91  sockmap_listen/sockhash IPv4 TCP test_syn_recv_insert_delete:OK
> #213/92  sockmap_listen/sockhash IPv4 TCP test_race_insert_listen:OK
> #213/93  sockmap_listen/sockhash IPv4 TCP test_clone_after_delete:OK
> #213/94  sockmap_listen/sockhash IPv4 TCP test_accept_after_delete:OK
> #213/95  sockmap_listen/sockhash IPv4 TCP test_accept_before_delete:OK
> #213/96  sockmap_listen/sockhash IPv4 UDP test_insert_invalid:OK
> #213/97  sockmap_listen/sockhash IPv4 UDP test_insert_opened:OK
> #213/98  sockmap_listen/sockhash IPv4 UDP test_insert:OK
> #213/99  sockmap_listen/sockhash IPv4 UDP test_delete_after_insert:OK
> #213/100 sockmap_listen/sockhash IPv4 UDP test_delete_after_close:OK
> #213/101 sockmap_listen/sockhash IPv4 UDP test_lookup_after_insert:OK
> #213/102 sockmap_listen/sockhash IPv4 UDP test_lookup_after_delete:OK
> #213/103 sockmap_listen/sockhash IPv4 UDP test_lookup_32_bit_value:OK
> #213/104 sockmap_listen/sockhash IPv4 UDP test_update_existing:OK
> #213/105 sockmap_listen/sockhash IPv4 test_skb_redir_to_connected:OK
> #213/106 sockmap_listen/sockhash IPv4 test_skb_redir_to_listening:OK
> #213/107 sockmap_listen/sockhash IPv4 test_skb_redir_partial:OK
> #213/108 sockmap_listen/sockhash IPv4 test_msg_redir_to_connected:OK
> #213/109 sockmap_listen/sockhash IPv4 test_msg_redir_to_listening:OK
> #213/110 sockmap_listen/sockhash IPv4 TCP test_reuseport_select_listening:OK
> #213/111 sockmap_listen/sockhash IPv4 TCP test_reuseport_select_connected:OK
> #213/112 sockmap_listen/sockhash IPv4 TCP test_reuseport_mixed_groups:OK
> #213/113 sockmap_listen/sockhash IPv4 UDP test_reuseport_select_listening:OK
> #213/114 sockmap_listen/sockhash IPv4 UDP test_reuseport_select_connected:OK
> #213/115 sockmap_listen/sockhash IPv4 UDP test_reuseport_mixed_groups:OK
> #213/116 sockmap_listen/sockhash IPv4 test_udp_redir:OK
> #213/117 sockmap_listen/sockhash IPv4 test_udp_unix_redir:OK
> #213/118 sockmap_listen/sockhash IPv6 TCP test_insert_invalid:OK
> #213/119 sockmap_listen/sockhash IPv6 TCP test_insert_opened:OK
> #213/120 sockmap_listen/sockhash IPv6 TCP test_insert_bound:OK
> #213/121 sockmap_listen/sockhash IPv6 TCP test_insert:OK
> #213/122 sockmap_listen/sockhash IPv6 TCP test_delete_after_insert:OK
> #213/123 sockmap_listen/sockhash IPv6 TCP test_delete_after_close:OK
> #213/124 sockmap_listen/sockhash IPv6 TCP test_lookup_after_insert:OK
> #213/125 sockmap_listen/sockhash IPv6 TCP test_lookup_after_delete:OK
> #213/126 sockmap_listen/sockhash IPv6 TCP test_lookup_32_bit_value:OK
> #213/127 sockmap_listen/sockhash IPv6 TCP test_update_existing:OK
> #213/128 sockmap_listen/sockhash IPv6 TCP test_destroy_orphan_child:OK
> #213/129 sockmap_listen/sockhash IPv6 TCP test_syn_recv_insert_delete:OK
> #213/130 sockmap_listen/sockhash IPv6 TCP test_race_insert_listen:OK
> #213/131 sockmap_listen/sockhash IPv6 TCP test_clone_after_delete:OK
> #213/132 sockmap_listen/sockhash IPv6 TCP test_accept_after_delete:OK
> #213/133 sockmap_listen/sockhash IPv6 TCP test_accept_before_delete:OK
> #213/134 sockmap_listen/sockhash IPv6 UDP test_insert_invalid:OK
> #213/135 sockmap_listen/sockhash IPv6 UDP test_insert_opened:OK
> #213/136 sockmap_listen/sockhash IPv6 UDP test_insert:OK
> #213/137 sockmap_listen/sockhash IPv6 UDP test_delete_after_insert:OK
> #213/138 sockmap_listen/sockhash IPv6 UDP test_delete_after_close:OK
> #213/139 sockmap_listen/sockhash IPv6 UDP test_lookup_after_insert:OK
> #213/140 sockmap_listen/sockhash IPv6 UDP test_lookup_after_delete:OK
> #213/141 sockmap_listen/sockhash IPv6 UDP test_lookup_32_bit_value:OK
> #213/142 sockmap_listen/sockhash IPv6 UDP test_update_existing:OK
> #213/143 sockmap_listen/sockhash IPv6 test_skb_redir_to_connected:OK
> #213/144 sockmap_listen/sockhash IPv6 test_skb_redir_to_listening:OK
> #213/145 sockmap_listen/sockhash IPv6 test_skb_redir_partial:OK
> #213/146 sockmap_listen/sockhash IPv6 test_msg_redir_to_connected:OK
> #213/147 sockmap_listen/sockhash IPv6 test_msg_redir_to_listening:OK
> #213/148 sockmap_listen/sockhash IPv6 TCP test_reuseport_select_listening:OK
> #213/149 sockmap_listen/sockhash IPv6 TCP test_reuseport_select_connected:OK
> #213/150 sockmap_listen/sockhash IPv6 TCP test_reuseport_mixed_groups:OK
> #213/151 sockmap_listen/sockhash IPv6 UDP test_reuseport_select_listening:OK
> #213/152 sockmap_listen/sockhash IPv6 UDP test_reuseport_select_connected:OK
> #213/153 sockmap_listen/sockhash IPv6 UDP test_reuseport_mixed_groups:OK
> #213/154 sockmap_listen/sockhash IPv6 test_udp_redir:OK
> #213/155 sockmap_listen/sockhash IPv6 test_udp_unix_redir:OK
> #213/156 sockmap_listen/sockhash Unix test_unix_redir:OK
> #213/157 sockmap_listen/sockhash Unix test_unix_redir:OK
> #213/158 sockmap_listen/sockhash VSOCK test_vsock_redir:OK
> #213     sockmap_listen:OK
> Summary: 4/193 PASSED, 0 SKIPPED, 0 FAILED
> bash-5.2#
>