Improper Locking Affecting bpftool package, versions <0:4.18.0-553.16.1.el8_10
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Test your applications- Snyk ID SNYK-CENTOS8-BPFTOOL-6681952
- published 27 Apr 2024
- disclosed 24 Apr 2024
Introduced: 24 Apr 2024
CVE-2024-26925 Open this link in a new tabHow to fix?
Upgrade Centos:8 bpftool to version 0:4.18.0-553.16.1.el8_10 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
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.
References
- https://access.redhat.com/security/cve/CVE-2024-26925
- http://www.openwall.com/lists/oss-security/2024/05/07/6
- http://www.openwall.com/lists/oss-security/2024/05/08/2
- https://git.kernel.org/stable/c/0d459e2ffb541841714839e8228b845458ed3b27
- https://git.kernel.org/stable/c/2cee2ff7f8cce12a63a0a23ffe27f08d99541494
- https://git.kernel.org/stable/c/61ac7284346c32f9a8c8ceac56102f7914060428
- https://git.kernel.org/stable/c/8038ee3c3e5b59bcd78467686db5270c68544e30
- https://git.kernel.org/stable/c/8d3a58af50e46167b6f1db47adadad03c0045dae
- https://git.kernel.org/stable/c/a34ba4bdeec0c3b629160497594908dc820110f1
- https://git.kernel.org/stable/c/eb769ff4e281f751adcaf4f4445cbf30817be139
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html