#VU115883 Use-after-free in Linux kernel - CVE-2023-53427
Published: September 19, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115883
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-53427
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the allocate_mr_list() function in fs/cifs/smbdirect.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/275a3d2b9408fc4895e342f772cab9a89960546e
- https://git.kernel.org/stable/c/2d0c4f5f618f58eba03385363717703bee873c64
- https://git.kernel.org/stable/c/3524d6da0fe88aee79f06be6572955d16ad76b39
- https://git.kernel.org/stable/c/3e161c2791f8e661eed24a2c624087084d910215
- https://git.kernel.org/stable/c/41832c62a75dad530dc5a2856c92ae5459d497e5
- https://git.kernel.org/stable/c/7cbd5bdb5bd4404a5da4309521134b42c65846c0
- https://git.kernel.org/stable/c/cfd85a0922c4696d768965e686ad805a58d9d834
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.173