SB20250226237 - Use-after-free in Linux kernel erofs
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226237
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2022-49464)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the z_erofs_shifted_transform() function in fs/erofs/decompressor.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/4d53a625f29074e7b8236c2c0e0922edb7608df9
- https://git.kernel.org/stable/c/6b59e1907f58cf877c563dcf013159eb9f994b64
- https://git.kernel.org/stable/c/dcbe6803fffd387f72b48c2373b5f5ed12a5804b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19