A use-after-free flaw was found in btrfs_get_dev_args_from_path in fs/btrfs/volumes.c in btrfs file-system in the Linux Kernel. This flaw allows a local attacker with special privileges to cause a system crash or leak internal kernel information
The product does not properly control the allocation and maintenance of a limited resource.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
| Link | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2023-4394 | third party advisory vdb entry issue tracking |
| https://bugzilla.redhat.com/show_bug.cgi?id=2219263 | patch third party advisory issue tracking |
| https://patchwork.kernel.org/project/linux-btrfs/patch/20220815151606.3479183-1-r33s3n6@gmail.com/ | patch vendor advisory mailing list |