vulnerability

Red Hat: CVE-2024-26925: kernel: netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path (Multiple Advisories)

Severity
6
CVSS
(AV:L/AC:H/Au:S/C:C/I:C/A:C)
Published
04/25/2024
Added
07/25/2024
Modified
03/18/2025

Description

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path

The commit mutex should not be released during the critical section
between nft_gc_seq_begin() and nft_gc_seq_end(), otherwise, async GC
worker could collect expired objects and get the released commit lock
within the same GC sequence.

nf_tables_module_autoload() temporarily releases the mutex to load
module dependencies, then it goes back to replay the transaction again.
Move it at the end of the abort phase after nft_gc_seq_end() is called.

Solution(s)

redhat-upgrade-kernelredhat-upgrade-kernel-rt
Title
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