#VU120681 Memory leak in Linux kernel - CVE-2022-50839
Published: December 30, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120681
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-50839
CWE-ID: CWE-401
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 perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the jbd2_fc_wait_bufs() function in fs/jbd2/journal.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/68ed9c76b2affd47177b92495446abb7262d0ef7
- https://git.kernel.org/stable/c/7a33dde572fceb45d02d188e0213c47059401c93
- https://git.kernel.org/stable/c/9b073d73725366d886b711b74e058c02f51e7a0e
- https://git.kernel.org/stable/c/e0d5fc7a6d80ac2406c7dfc6bb625201d0250a8a
- https://git.kernel.org/stable/c/e7385c868ee038d6a0cb0e85c22d2741e7910fd5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.75