SB20251008119 - Use of uninitialized resource in Linux kernel ext4
Published: October 8, 2025 Updated: October 26, 2025
Security Bulletin ID
SB20251008119
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use of uninitialized resource (CVE-ID: CVE-2022-50546)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to use of uninitialized resource within the ext4_alloc_inode() function in fs/ext4/super.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/091f85db4c3fb1734a6d7fb4777a2b2831da6631
- https://git.kernel.org/stable/c/3c31d8d3ad95aef8cc17a4fcf317e46217148439
- https://git.kernel.org/stable/c/56491d60ddca9c697d885394cb0173675b9ab81f
- https://git.kernel.org/stable/c/7ea71af94eaaaf6d9aed24bc94a05b977a741cb9
- https://git.kernel.org/stable/c/9f966e021c20caae639dd0e404c8761e8281a2c4
- https://git.kernel.org/stable/c/e431b4fb1fb8c2654b808086e9747a000adb9655
- https://git.kernel.org/stable/c/f0bffdcc7cb14598af2aa706f1e0f2a9054154ba
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270