#VU115689 NULL pointer dereference in Linux kernel - CVE-2022-50344
Published: September 17, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115689
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-2022-50344
CWE-ID: CWE-476
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 NULL pointer dereference within the ext4_write_info() function in fs/ext4/super.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/3638aa1c7d87c0ca0aef23cf58cae2c48e7daca4
- https://git.kernel.org/stable/c/4a657319cfabd6199fd0b7b65bbebf6ded7a11c1
- https://git.kernel.org/stable/c/533c60a0b97cee5daab376933f486207e6680fb7
- https://git.kernel.org/stable/c/947264e00c46de19a016fd81218118c708fed2f3
- https://git.kernel.org/stable/c/bb420e8afc854d2a1caaa23a0c129839acfb7888
- https://git.kernel.org/stable/c/dc451578446afd03c0c21913993c08898a691435
- https://git.kernel.org/stable/c/f34ab95162763cd7352f46df169296eec28b688d
- https://git.kernel.org/stable/c/f4b5ff0b794aa94afac7269c494550ca2f66511b
- https://git.kernel.org/stable/c/f9c1f248607d5546075d3f731e7607d5571f2b60
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.296
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.262
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.331
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.150
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.75
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.220
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1