CVE-2024-27389 Affecting kernel-syms package, versions <6.4.0-150600.23.7.1
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Test your applications- Snyk ID SNYK-SLES156-KERNELSYMS-7715326
- published 20 Aug 2024
- disclosed 25 Jun 2024
Introduced: 25 Jun 2024
CVE-2024-27389 Open this link in a new tabHow to fix?
Upgrade SLES:15.6 kernel-syms to version 6.4.0-150600.23.7.1 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:
pstore: inode: Only d_invalidate() is needed
Unloading a modular pstore backend with records in pstorefs would trigger the dput() double-drop warning:
WARNING: CPU: 0 PID: 2569 at fs/dcache.c:762 dput.part.0+0x3f3/0x410
Using the combo of d_drop()/dput() (as mentioned in Documentation/filesystems/vfs.rst) isn't the right approach here, and leads to the reference counting problem seen above. Use d_invalidate() and update the code to not bother checking for error codes that can never happen.
References
- https://www.suse.com/security/cve/CVE-2024-27389.html
- https://bugzilla.suse.com/1223705
- https://git.kernel.org/stable/c/340682ed1932b8e3bd0bfc6c31a0c6354eb57cc6
- https://git.kernel.org/stable/c/4cdf9006fc095af71da80e9b5f48a32e991b9ed3
- https://git.kernel.org/stable/c/a43e0fc5e9134a46515de2f2f8d4100b74e50de3
- https://git.kernel.org/stable/c/cb9e802e49c24eeb3af35e9e8c04d526f35f112a
- https://git.kernel.org/stable/c/db6e5e16f1ee9e3b01d2f71c7f0ba945f4bf0f4e