CVE-2024-26643

Advisory lineage Upstream: 0 Downstream: 43
Modified
Published: 21 Mar 2024, 10:43
Last modified:23 May 2026, 15:36

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
<0.01% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

21 Mar 2024, 10:43
Published
Vulnerability first disclosed
23 May 2026, 15:36
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout While the rhashtable set gc runs asynchronously, a race allows it to collect elements from anonymous sets with timeouts while it is being released from the commit path. Mingi Cho originally reported this issue in a different path in 6.1.x with a pipapo set with low timeouts which is not possible upstream since 7395dfacfff6 ("netfilter: nf_tables: use timestamp to check for set element timeout"). Fix this by setting on the dead flag for anonymous sets to skip async gc in this case. According to 08e4c8c5919f ("netfilter: nf_tables: mark newset as dead on transaction abort"), Florian plans to accelerate abort path by releasing objects via workqueue, therefore, this sets on the dead flag for abort path too.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.01%• Percentile: 1%

Techniques & Countermeasures

  • CWE-667•Improper Locking

    The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

Affected Systems

  • debian•debian_linux

    10.0

  • linux•linux

    ≥ 8da1b048f9a501d3d7d38c188ba09d7d0d5b8c27, < d75a589bb92af1abf3b779cfcd1977ca11b27033 | ≥ bbdb3b65aa91aa0a32b212f27780b28987f2d94f, < edcf1a3f182ecf8b6b805f0ce90570ea98c5f6bf | ≥ 448be0774882f95a74fa5eb7519761152add601b, < e2d45f467096e931044f0ab7634499879d851a5c | ≥ d19e8bf3ea4114dd21fc35da21f398203d7f7df1, < 291cca35818bd52a407bc37ab45a15816039e363 | ≥ ea3eb9f2192e4fc33b795673e56c97a21987f868, < 406b0241d0eb598a0b330ab20ae325537d8d8163 | ≥ 5f68718b34a531a556f2f50300ead2862278da26, < b2d6f9a5b1cf968f1eaa71085ceeb09c2cb276b1 | ≥ 5f68718b34a531a556f2f50300ead2862278da26, < 5224afbc30c3ca9ba23e752f0f138729b2c48dd8 | ≥ 5f68718b34a531a556f2f50300ead2862278da26, < 552705a3650bbf46a22b1adedc1b04181490fc36 | 0624f190b5742a1527cd938295caa8dc5281d4cd | ≥ 5.4.262, < 5.4.274 | ≥ 5.10.198, < 5.10.215 | ≥ 5.15.134, < 5.15.154 | ≥ 6.1.56, < 6.1.84 | ≥ 6.4.11, < 6.5 | 6.5

  • linux•linux_kernel

    < 5.4.274 | ≥ 5.5, < 5.10.215 | ≥ 5.11, < 5.15.154 | ≥ 5.16, < 6.1.84 | ≥ 6.2, < 6.6.24 | ≥ 6.7, < 6.7.12

References (10)