| Message ID | 20241008071114.3718177-1-houtao@huaweicloud.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Check the remaining info_cnt before repeating btf fields | expand |
Hello: This series was applied to bpf/bpf.git (master) by Alexei Starovoitov <ast@kernel.org>: On Tue, 8 Oct 2024 15:11:12 +0800 you wrote: > From: Hou Tao <houtao1@huawei.com> > > Hi, > > The patch set adds the missed check again info_cnt when flattening the > array of nested struct. The problem was spotted when developing dynptr > key support for hash map. Patch #1 adds the missed check and patch #2 > adds three success test cases and one failure test case for the problem. > > [...] Here is the summary with links: - [bpf,RESEND,1/2] bpf: Check the remaining info_cnt before repeating btf fields https://git.kernel.org/bpf/bpf/c/797d73ee232d - [bpf,RESEND,2/2] selftests/bpf: Add more test case for field flattening https://git.kernel.org/bpf/bpf/c/c456f0804058 You are awesome, thank you!
From: Hou Tao <houtao1@huawei.com> Hi, The patch set adds the missed check again info_cnt when flattening the array of nested struct. The problem was spotted when developing dynptr key support for hash map. Patch #1 adds the missed check and patch #2 adds three success test cases and one failure test case for the problem. Comments are always welcome. Change Log: v2: * patch #1: check info_cnt in btf_repeat_fields() * patch #2: use a hard-coded number instead of BTF_FIELDS_MAX, because BTF_FIELDS_MAX is not always available in vmlinux.h (e.g., for llvm 17/18) v1: https://lore.kernel.org/bpf/20240911110557.2759801-1-houtao@huaweicloud.com/T/#t Hou Tao (2): bpf: Check the remaining info_cnt before repeating btf fields selftests/bpf: Add more test case for field flattening kernel/bpf/btf.c | 14 +++- .../selftests/bpf/prog_tests/cpumask.c | 1 + .../selftests/bpf/progs/cpumask_common.h | 5 ++ .../selftests/bpf/progs/cpumask_failure.c | 35 +++++++++ .../selftests/bpf/progs/cpumask_success.c | 78 ++++++++++++++++++- 5 files changed, 127 insertions(+), 6 deletions(-)