diff mbox series

[29/43] kmsan: handle memory sent to/from USB

Message ID	20211214162050.660953-30-glider@google.com (mailing list archive)
State	New
Headers	show Return-Path: <owner-linux-mm@kvack.org> Date: Tue, 14 Dec 2021 17:20:36 +0100 In-Reply-To: <20211214162050.660953-1-glider@google.com> Message-Id: <20211214162050.660953-30-glider@google.com> Mime-Version: 1.0 References: <20211214162050.660953-1-glider@google.com> Subject: [PATCH 29/43] kmsan: handle memory sent to/from USB From: Alexander Potapenko <glider@google.com> To: glider@google.com Cc: Alexander Viro <viro@zeniv.linux.org.uk>, Andrew Morton <akpm@linux-foundation.org>, Andrey Konovalov <andreyknvl@google.com>, Andy Lutomirski <luto@kernel.org>, Ard Biesheuvel <ard.biesheuvel@linaro.org>, Arnd Bergmann <arnd@arndb.de>, Borislav Petkov <bp@alien8.de>, Christoph Hellwig <hch@lst.de>, Christoph Lameter <cl@linux.com>, David Rientjes <rientjes@google.com>, Dmitry Vyukov <dvyukov@google.com>, Eric Dumazet <edumazet@google.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Herbert Xu <herbert@gondor.apana.org.au>, Ilya Leoshkevich <iii@linux.ibm.com>, Ingo Molnar <mingo@redhat.com>, Jens Axboe <axboe@kernel.dk>, Joonsoo Kim <iamjoonsoo.kim@lge.com>, Kees Cook <keescook@chromium.org>, Marco Elver <elver@google.com>, Matthew Wilcox <willy@infradead.org>, "Michael S. Tsirkin" <mst@redhat.com>, Pekka Enberg <penberg@kernel.org>, Peter Zijlstra <peterz@infradead.org>, Petr Mladek <pmladek@suse.com>, Steven Rostedt <rostedt@goodmis.org>, Thomas Gleixner <tglx@linutronix.de>, Vasily Gorbik <gor@linux.ibm.com>, Vegard Nossum <vegard.nossum@oracle.com>, Vlastimil Babka <vbabka@suse.cz>, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Sender: owner-linux-mm@kvack.org Precedence: bulk
Series	Add KernelMemorySanitizer infrastructure \| expand [00/43] Add KernelMemorySanitizer infrastructure [01/43] arch/x86: add missing include to sparsemem.h [02/43] stackdepot: reserve 5 extra bits in depot_stack_handle_t [03/43] kasan: common: adapt to the new prototype of __stack_depot_save() [04/43] instrumented.h: allow instrumenting both sides of copy_from_user() [05/43] asm: x86: instrument usercopy in get_user() and __put_user_size() [06/43] asm-generic: instrument usercopy in cacheflush.h [07/43] compiler_attributes.h: add __disable_sanitizer_instrumentation [08/43] kmsan: add ReST documentation [09/43] kmsan: introduce __no_sanitize_memory and __no_kmsan_checks [10/43] kmsan: pgtable: reduce vmalloc space [11/43] libnvdimm/pfn_dev: increase MAX_STRUCT_PAGE_SIZE [12/43] kcsan: clang: retire CONFIG_KCSAN_KCOV_BROKEN [13/43] kmsan: add KMSAN runtime core [14/43] MAINTAINERS: add entry for KMSAN [15/43] kmsan: mm: maintain KMSAN metadata for page operations [16/43] kmsan: mm: call KMSAN hooks from SLUB code [17/43] kmsan: handle task creation and exiting [18/43] kmsan: unpoison @tlb in arch_tlb_gather_mmu() [19/43] kmsan: init: call KMSAN initialization routines [20/43] instrumented.h: add KMSAN support [21/43] kmsan: mark noinstr as __no_sanitize_memory [22/43] kmsan: initialize the output of READ_ONCE_NOCHECK() [23/43] kmsan: make READ_ONCE_TASK_STACK() return initialized values [24/43] kmsan: disable KMSAN instrumentation for certain kernel parts [25/43] kmsan: skip shadow checks in files doing context switches [26/43] kmsan: virtio: check/unpoison scatterlist in vring_map_one_sg() [27/43] x86: kmsan: add iomem support [28/43] kmsan: dma: unpoison DMA mappings [29/43] kmsan: handle memory sent to/from USB [30/43] kmsan: add tests for KMSAN [31/43] kmsan: disable strscpy() optimization under KMSAN [32/43] crypto: kmsan: disable accelerated configs under KMSAN [33/43] kmsan: disable physical page merging in biovec [34/43] kmsan: block: skip bio block merging logic for KMSAN [35/43] x86: kmsan: use __msan_ string functions where possible. [36/43] x86: kmsan: sync metadata pages on page fault [37/43] x86: kasan: kmsan: support CONFIG_GENERIC_CSUM on x86, enable it for KASAN/KMSAN [38/43] x86: fs: kmsan: disable CONFIG_DCACHE_WORD_ACCESS [39/43] x86: kmsan: handle register passing from uninstrumented code [40/43] kmsan: kcov: unpoison area->list in kcov_remote_area_put() [41/43] security: kmsan: fix interoperability with auto-initialization [42/43] objtool: kmsan: list KMSAN API functions as uaccess-safe [43/43] x86: kmsan: enable KMSAN builds for x86

Commit Message

Alexander Potapenko Dec. 14, 2021, 4:20 p.m. UTC

Depending on the value of is_out kmsan_handle_urb() KMSAN either
marks the data copied to the kernel from a USB device as initialized,
or checks the data sent to the device for being initialized.

Signed-off-by: Alexander Potapenko <glider@google.com>

---

Link: https://linux-review.googlesource.com/id/Ifa67fb72015d4de14c30e971556f99fc8b2ee506
---
 drivers/usb/core/urb.c | 2 ++
 1 file changed, 2 insertions(+)

diff mbox series

Patch

diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index 30727729a44cc..0e84acc9aea53 100644
--- a/drivers/usb/core/urb.c
+++ b/drivers/usb/core/urb.c
@@ -8,6 +8,7 @@ 
 #include <linux/bitops.h>
 #include <linux/slab.h>
 #include <linux/log2.h>
+#include <linux/kmsan-checks.h>
 #include <linux/usb.h>
 #include <linux/wait.h>
 #include <linux/usb/hcd.h>
@@ -426,6 +427,7 @@  int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
 			URB_SETUP_MAP_SINGLE | URB_SETUP_MAP_LOCAL |
 			URB_DMA_SG_COMBINED);
 	urb->transfer_flags |= (is_out ? URB_DIR_OUT : URB_DIR_IN);
+	kmsan_handle_urb(urb, is_out);
 
 	if (xfertype != USB_ENDPOINT_XFER_CONTROL &&
 			dev->state < USB_STATE_CONFIGURED)