CVE-2024-40901

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Source
https://cve.org/CVERecord?id=CVE-2024-40901
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-40901.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-40901
Downstream
Related
Published
2024-07-12T12:20:42.859Z
Modified
2026-03-20T12:37:21.369063Z
Summary
scsi: mpt3sas: Avoid test/set_bit() operating in non-allocated memory
Details

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 testbit() on a single word. The testbit() 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 setbit() and testbit() have sufficient room for read/write operations without overwriting unallocated memory.

[1] Link: https://lore.kernel.org/all/ZkNcALr3W3KGYYJG@gmail.com/

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40901.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
c696f7b83edeac804e898952058089143f49ca0a
Fixed
e9bce7c751f6d6c7be88c0bc081a66aaf61a23ee
Fixed
19649e49a6df07cd2e03e0a11396fd3a99485ec2
Fixed
0081d2b3ae0a17a86b8cc0fa3c8bdc54e233ba16
Fixed
521f333e644c4246ca04a4fc4772edc53dd2a801
Fixed
46bab2bcd771e725ff5ca3a68ba68cfeac45676c
Fixed
9079338c5a0d1f1fee34fb1c9e99b754efe414c5
Fixed
18abb5db0aa9b2d48f7037a88b41af2eef821674
Fixed
4254dfeda82f20844299dca6c38cbffcfd499f41

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-40901.json"