CVE-2024-26910

Medium

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix performance regression in swap operation The patch "netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test", commit 28628fa9 fixes a race condition. But the synchronize_rcu() added to the swap function unnecessarily slows it down: it can safely be moved to destroy and use call_rcu() instead. Eric Dumazet pointed out that simply calling the destroy functions as rcu callback does not work: sets with timeout use garbage collectors which need cancelling at destroy which can wait. Therefore the destroy functions are split into two: cancelling garbage collectors safely at executing the command received by netlink and moving the remaining part only into the rcu callback.

Package Linux Kernel
Published 2024-04-17
Last modified 2024-11-21
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

4.7

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

Weakness type

CWE-362

CVE-2024-26910 is a Race Condition vulnerability

What is Race Condition?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.4.264, 5.10.204, 5.15.143, 6.1.68, 6.6.7, 4.19.302, 6.7 and later are affected. Fixed in 5.4.269, 5.10.210, 5.15.149, 6.1.79, 6.6.18, 6.7.6, 6.8 and their respective stable series.

Affected from
≥ 5.4.264 ≥ 5.10.204 ≥ 5.15.143 ≥ 6.1.68 ≥ 6.6.7 ≥ 4.19.302 ≥ 6.7
Fixed in
✓ 5.4.269 5.4.x ✓ 5.10.210 5.10.x ✓ 5.15.149 5.15.x ✓ 6.1.79 6.1.x ✓ 6.6.18 6.6.x ✓ 6.7.6 6.7.x ✓ 6.8

References

8 total
Showing 5 of 8 references View all on NVD

Frequently asked questions

  • What is CVE-2024-26910?

    CVE-2024-26910 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as a Race Condition flaw (CWE-362) . It affects Linux kernel versions from 5.4.264 onward and has been patched in 5.4.269, 5.10.210, 5.15.149 and others. CVE-2024-26910 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2024-26910?

    CVE-2024-26910 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2024-26910?

    Yes. CVE-2024-26910 has been patched. Fixed versions include 5.4.269, 5.10.210, 5.15.149 and others. If you are running Linux kernel 5.4.264 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2024-26910 actively exploited?

    No. CVE-2024-26910 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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