#VU116515 Use-after-free in Linux kernel - CVE-2023-53537
Published: October 4, 2025 / Updated: October 27, 2025
Vulnerability identifier: #VU116515
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-2023-53537
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 f2fs_submit_merged_ipu_write() and f2fs_write_single_data_page() functions in fs/f2fs/data.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/5cdb422c839134273866208dad5360835ddb9794
- https://git.kernel.org/stable/c/7d058f0ab161437369ad6e45a4b67c2886e71373
- https://git.kernel.org/stable/c/97ec6f1788cc6bee3f8c89cb908e1a2a1cd859bb
- https://git.kernel.org/stable/c/9a7f63283af6befc0f91d549f4f6917dff7479a9
- https://git.kernel.org/stable/c/af4ce124d7bd74cb839bbdaccffbb416771a56b5
- https://git.kernel.org/stable/c/b2f423fda64fb49213aa0ed5056079cf295a5df2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.180