CVE-2024-36020

Medium

In the Linux kernel, the following vulnerability has been resolved: i40e: fix vf may be used uninitialized in this function warning To fix the regression introduced by commit 52424f974bc5, which causes servers hang in very hard to reproduce conditions with resets races. Using two sources for the information is the root cause. In this function before the fix bumping v didn't mean bumping vf pointer. But the code used this variables interchangeably, so stale vf could point to different/not intended vf. Remove redundant "v" variable and iterate via single VF pointer across whole function instead to guarantee VF pointer validity.

Package Linux Kernel
Published 2024-05-30
Last modified 2026-05-12
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-908

CVE-2024-36020 is classified as CWE-908

See CWE-908 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 4.19.264, 5.4.223, 5.10.153, 5.15.77, 6.0.7, 6.1 and later are affected. Fixed in 4.19.312, 5.4.274, 5.10.215, 5.15.154, 6.1.85, 6.6.26, 6.8.5, 6.9 and their respective stable series.

Affected from
≥ 4.19.264 ≥ 5.4.223 ≥ 5.10.153 ≥ 5.15.77 ≥ 6.0.7 ≥ 6.1
Fixed in
✓ 4.19.312 4.19.x ✓ 5.4.274 5.4.x ✓ 5.10.215 5.10.x ✓ 5.15.154 5.15.x ✓ 6.1.85 6.1.x ✓ 6.6.26 6.6.x ✓ 6.8.5 6.8.x ✓ 6.9

References

11 total
Showing 5 of 11 references View all on NVD

Frequently asked questions

  • What is CVE-2024-36020?

    CVE-2024-36020 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.19.264 onward and has been patched in 4.19.312, 5.4.274, 5.10.215 and others. CVE-2024-36020 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2024-36020?

    CVE-2024-36020 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-2024-36020?

    Yes. CVE-2024-36020 has been patched. Fixed versions include 4.19.312, 5.4.274, 5.10.215 and others. If you are running Linux kernel 4.19.264 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2024-36020 actively exploited?

    No. CVE-2024-36020 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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