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

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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
Created
07/26/2024
Added
07/25/2024
Modified
12/05/2024

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-kernel
  • redhat-upgrade-kernel-rt

References

  • CVE-2024-26925
  • RHSA-2024:4823
  • RHSA-2024:4831
  • RHSA-2024:5101
  • RHSA-2024:5102
  • RHSA-2024:5928
  • 查看数 696
  • 已创建
  • 最后回复

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