CVE-2024-42145

Medium

In the Linux kernel, the following vulnerability has been resolved: IB/core: Implement a limit on UMAD receive List The existing behavior of ib_umad, which maintains received MAD packets in an unbounded list, poses a risk of uncontrolled growth. As user-space applications extract packets from this list, the rate of extraction may not match the rate of incoming packets, leading to potential list overflow. To address this, we introduce a limit to the size of the list. After considering typical scenarios, such as OpenSM processing, which can handle approximately 100k packets per second, and the 1-second retry timeout for most packets, we set the list size limit to 200k. Packets received beyond this limit are dropped, assuming they are likely timed out by the time they are handled by user-space. Notably, packets queued on the receive list due to reasons like timed-out sends are preserved even when the list is full.

Package Linux Kernel
Published 2024-07-30
Last modified 2025-11-03
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

5.5

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

Weakness type

CWE-770

CVE-2024-42145 is classified as CWE-770

See CWE-770 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 2.6.12 and later are affected. Fixed in 4.19.318, 5.4.280, 5.10.222, 5.15.163, 6.1.98, 6.6.39, 6.9.9, 6.10 and their respective stable series.

Affected from
≥ 2.6.12
Fixed in
✓ 4.19.318 4.19.x ✓ 5.4.280 5.4.x ✓ 5.10.222 5.10.x ✓ 5.15.163 5.15.x ✓ 6.1.98 6.1.x ✓ 6.6.39 6.6.x ✓ 6.9.9 6.9.x ✓ 6.10

References

9 total
Showing 5 of 9 references View all on NVD

Frequently asked questions

  • What is CVE-2024-42145?

    CVE-2024-42145 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 2.6.12 onward and has been patched in 4.19.318, 5.4.280, 5.10.222 and others. CVE-2024-42145 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2024-42145?

    CVE-2024-42145 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2024-42145?

    Yes. CVE-2024-42145 has been patched. Fixed versions include 4.19.318, 5.4.280, 5.10.222 and others. If you are running Linux kernel 2.6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2024-42145 actively exploited?

    No. CVE-2024-42145 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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