7.8

CVE-2024-26643: netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout

Modified
AliasesUBUNTU-CVE-2024-26643DEBIAN-CVE-2024-26643
Published 21-03-2024Last modified 15-10-2026

Vulnerability summary

CVE-2024-26643 is a high (CVSS 7.8) Improper Locking vulnerability in debian debian_linux. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 10.3% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.20%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 41 · Related 31
DLA-3842-1DSA-5658-1DSA-5681-1MGASA-2024-0141MGASA-2024-0142RHSA-2024:3306

Timeline

  1. 21-03-2024
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability 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

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.20% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu112 products
  • linux< 5.4.0-187.207 | < 5.15.0-113.123
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1127.137 | < 5.15.0-1064.70
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
Linux2 products
  • 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_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

3 vendors · 116 products

References

29 links
Show all 29 references