CVE-2024-56729 | BDVDB-2026-260545 Detail
LinuxLinux
Description#
In the Linux kernel, the following vulnerability has been resolved: smb: Initialize cfid->tcon before performing network ops Avoid leaking a tcon ref when a lease break races with opening the cached directory. Processing the leak break might take a reference to the tcon in cached_dir_lease_break() and then fail to release the ref in cached_dir_offload_close, since cfid->tcon is still NULL.
Impact#
Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: local.
Weaknesses#
- CWE-401 Missing Release of Memory after Effective Lifetime
References#
- https://git.kernel.org/stable/c/269ff24a5b2b58600151e04e964d2043bfe1843c
- https://git.kernel.org/stable/c/625e2357c8fcfae6e66dcc667dc656fe390bab15
- https://git.kernel.org/stable/c/4b216c8f9c7d84ef7de33ca60b97e08e03ef3292
- https://git.kernel.org/stable/c/1b9ab6b648f89441c8a13cb3fd8ca83ffebc5262
- https://git.kernel.org/stable/c/c353ee4fb119a2582d0e011f66a76a38f5cf984d
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.