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.
History

Fri, 22 Nov 2024 12:00:00 +0000

Type Values Removed Values Added
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Tue, 05 Nov 2024 10:45:00 +0000

Type Values Removed Values Added
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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-03-21T10:43:44.103Z

Updated: 2024-12-19T08:44:11.009Z

Reserved: 2024-02-19T14:20:24.137Z

Link: CVE-2024-26643

cve-icon Vulnrichment

Updated: 2024-08-02T00:07:19.747Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-03-21T11:15:28.340

Modified: 2024-11-21T09:02:45.103

Link: CVE-2024-26643

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-03-21T00:00:00Z

Links: CVE-2024-26643 - Bugzilla