CVE-2024-26643

netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout

HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.20 % · percentile 10 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

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.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 8da1b048f9a501d3d7d38c188ba09d7d0d5b8c27 < d75a589bb92af1abf3b779cfcd1977ca11b27033 ; affected bbdb3b65aa91aa0a32b212f27780b28987f2d94f < edcf1a3f182ecf8b6b805f0ce90570ea98c5f6bf ; affected 448be0774882f95a74fa5eb7519761152add601b < e2d45f467096e931044f0ab7634499879d851a5c ; affected d19e8bf3ea4114dd21fc35da21f398203d7f7df1 < 291cca35818bd52a407bc37ab45a15816039e363 ; affected ea3eb9f2192e4fc33b795673e56c97a21987f868 < 406b0241d0eb598a0b330ab20ae325537d8d8163 ; affected 5f68718b34a531a556f2f50300ead2862278da26 < b2d6f9a5b1cf968f1eaa71085ceeb09c2cb276b1
Linux · Linuxaffected 6.5 ; unaffected 0 < 6.5 ; unaffected 5.4.274 ≤ 5.4.* ; unaffected 5.10.215 ≤ 5.10.* ; unaffected 5.15.154 ≤ 5.15.* ; unaffected 6.1.84 ≤ 6.1.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD