In the Linux kernel, the following vulnerability has been resolved:
scsi: mpt3sas: Avoid test/set_bit() operating in non-allocated memory
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
Write of size 8 at addr ffff8881d26e3c60 by task kworker/u1536:2/2965
For full log, please look at [1].
Make the allocation at least the size of sizeof(unsigned long) so that
set_bit() and test_bit() have sufficient room for read/write operations
without overwriting unallocated memory.
[1] Link: https://lore.kernel.org/all/[email protected]/
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws-5.15 | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws-6.5 | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-azure | < any | UNKNOWN |
git.kernel.org/linus/4254dfeda82f20844299dca6c38cbffcfd499f41 (6.10-rc4)
git.kernel.org/stable/c/0081d2b3ae0a17a86b8cc0fa3c8bdc54e233ba16
git.kernel.org/stable/c/18abb5db0aa9b2d48f7037a88b41af2eef821674
git.kernel.org/stable/c/19649e49a6df07cd2e03e0a11396fd3a99485ec2
git.kernel.org/stable/c/4254dfeda82f20844299dca6c38cbffcfd499f41
git.kernel.org/stable/c/46bab2bcd771e725ff5ca3a68ba68cfeac45676c
git.kernel.org/stable/c/521f333e644c4246ca04a4fc4772edc53dd2a801
git.kernel.org/stable/c/9079338c5a0d1f1fee34fb1c9e99b754efe414c5
git.kernel.org/stable/c/e9bce7c751f6d6c7be88c0bc081a66aaf61a23ee
launchpad.net/bugs/cve/CVE-2024-40901
nvd.nist.gov/vuln/detail/CVE-2024-40901
security-tracker.debian.org/tracker/CVE-2024-40901
www.cve.org/CVERecord?id=CVE-2024-40901