Use After Free Affecting kernel-syms package, versions <6.4.0-150600.23.22.1
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Test your applications- Snyk ID SNYK-SLES156-KERNELSYMS-8080413
- published 24 Sep 2024
- disclosed 23 Sep 2024
Introduced: 23 Sep 2024
CVE-2024-42314 Open this link in a new tabHow to fix?
Upgrade SLES:15.6 kernel-syms to version 6.4.0-150600.23.22.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-syms package and not the kernel-syms package as distributed by SLES.
See How to fix? for SLES:15.6 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix extent map use-after-free when adding pages to compressed bio
At add_ra_bio_pages() we are accessing the extent map to calculate 'add_size' after we dropped our reference on the extent map, resulting in a use-after-free. Fix this by computing 'add_size' before dropping our extent map reference.
References
- https://www.suse.com/security/cve/CVE-2024-42314.html
- https://bugzilla.suse.com/1229355
- https://git.kernel.org/stable/c/8e7860543a94784d744c7ce34b78a2e11beefa5c
- https://git.kernel.org/stable/c/b7859ff398b6b656e1689daa860eb34837b4bb89
- https://git.kernel.org/stable/c/c205565e0f2f439f278a4a94ee97b67ef7b56ae8
- https://git.kernel.org/stable/c/c1cc3326e27b0bd7a2806b40bc48e49afaf951e7