CVE-2024-40901

High

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]/

Package Linux Kernel
Published 2024-07-12
Last modified 2025-11-03
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

7.8

out of 10
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-787

CVE-2024-40901 is a Out-of-bounds Write vulnerability

What is Out-of-bounds Write?

The product writes data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

Affected versions

Linux kernel versions 4.10 and later are affected. Fixed in 4.19.317, 5.4.279, 5.10.221, 5.15.162, 6.1.95, 6.6.35, 6.9.6, 6.10 and their respective stable series.

Affected from
≥ 4.10
Fixed in
✓ 4.19.317 4.19.x ✓ 5.4.279 5.4.x ✓ 5.10.221 5.10.x ✓ 5.15.162 5.15.x ✓ 6.1.95 6.1.x ✓ 6.6.35 6.6.x ✓ 6.9.6 6.9.x ✓ 6.10

References

9 total
Showing 5 of 9 references View all on NVD

Frequently asked questions

  • What is CVE-2024-40901?

    CVE-2024-40901 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Out-of-bounds Write flaw (CWE-787) . It affects Linux kernel versions from 4.10 onward and has been patched in 4.19.317, 5.4.279, 5.10.221 and others. CVE-2024-40901 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2024-40901?

    CVE-2024-40901 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H .

  • Is there a patch available for CVE-2024-40901?

    Yes. CVE-2024-40901 has been patched. Fixed versions include 4.19.317, 5.4.279, 5.10.221 and others. If you are running Linux kernel 4.10 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2024-40901 actively exploited?

    No. CVE-2024-40901 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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