CVE-2025-71151
cifs: Fix memory and information leak in smb3_reconfigure()
Summary
cifs: Fix memory and information leak in smb3_reconfigure()
Original description
The description as published by the source.
In the Linux kernel, the following vulnerability has been resolved:
cifs: Fix memory and information leak in smb3_reconfigure()
In smb3_reconfigure(), if smb3_sync_session_ctx_passwords() fails, the
function returns immediately without freeing and erasing the newly
allocated new_password and new_password2. This causes both a memory leak
and a potential information leak.
Fix this by calling kfree_sensitive() on both password buffers before
returning in this error case.
Affected packages
Linux
Kernel
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.120"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.64"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.3"}]}]
Fix status by distribution
Fixed packages published by each distribution for this CVE
- BellSoft Alpaquita BELL-CVE-2025-71151 linux-lts Fixed in: 6.18.35-r1
- Debian DEBIAN-CVE-2025-71151 linux Fixed in: 6.12.69-1
- Ubuntu UBUNTU-CVE-2025-71151 linux-hwe-edge
References
- advisory github.com
- advisory nvd.nist.gov
- package git.kernel.org
- web git.kernel.org
- web git.kernel.org
- web git.kernel.org
- web git.kernel.org