cve-2024-46801
Vulnerability from cvelistv5
Published
2024-09-18 07:12
Modified
2025-05-04 09:34
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: libfs: fix get_stashed_dentry() get_stashed_dentry() tries to optimistically retrieve a stashed dentry from a provided location. It needs to ensure to hold rcu lock before it dereference the stashed location to prevent UAF issues. Use rcu_dereference() instead of READ_ONCE() it's effectively equivalent with some lockdep bells and whistles and it communicates clearly that this expects rcu protection.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/03e2a1209a83a380df34a72f7d6d1bc6c74132c7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4e32c25b58b945f976435bbe51f39b32d714052ePatch
Impacted products
Vendor Product Version
Linux Linux Version: 07fd7c329839cf0b8c7766883d830a1a0d12d1dd
Version: 07fd7c329839cf0b8c7766883d830a1a0d12d1dd
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   Linux Linux Version: 6.9
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