Re: [PATCH v2] mpt3sas: Avoid test/set_bit() operating in non-allocated memory

On Wed, 05 Jun 2024 01:55:29 -0700, Breno Leitao wrote:

There is a potential out-of-bounds access when using test_bit() on a single word. The test_bit() and set_bit() functions operate on long values, and when testing or setting a single word, they can exceed the word boundary. KASAN detects this issue and produces a dump:

BUG: KASAN: slab-out-of-bounds in _scsih_add_device.constprop.0 (./arch/x86/include/asm/bitops.h:60 ./include/asm-generic/bitops/instrumented-atomic.h:29 drivers/scsi/mpt3sas/mpt3sas_scsih.c:7331) mpt3sas

[...]

Applied to 6.10/scsi-fixes, thanks!

[1/1] mpt3sas: Avoid test/set_bit() operating in non-allocated memory https://git.kernel.org/mkp/scsi/c/4254dfeda82f