CVE-2024-26643 (GCVE-0-2024-26643)
Vulnerability from cvelistv5
Published
2024-03-21 10:43
Modified
2025-05-04 12:54
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 8da1b048f9a501d3d7d38c188ba09d7d0d5b8c27
Version: bbdb3b65aa91aa0a32b212f27780b28987f2d94f
Version: 448be0774882f95a74fa5eb7519761152add601b
Version: d19e8bf3ea4114dd21fc35da21f398203d7f7df1
Version: ea3eb9f2192e4fc33b795673e56c97a21987f868
Version: 5f68718b34a531a556f2f50300ead2862278da26
Version: 5f68718b34a531a556f2f50300ead2862278da26
Version: 5f68718b34a531a556f2f50300ead2862278da26
Version: 0624f190b5742a1527cd938295caa8dc5281d4cd
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