SB20250226298 - Use-after-free in Linux kernel target driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226298
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-2022-49053)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the tcmu_try_get_data_page() and tcmu_vma_fault() functions in drivers/target/target_core_user.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/a6968f7a367f128d120447360734344d5a3d5336
- https://git.kernel.org/stable/c/a9564d84ed9f6ee71017d062d0d2182154294a4b
- https://git.kernel.org/stable/c/aec36b98a1bbaa84bfd8299a306e4c12314af626
- https://git.kernel.org/stable/c/b7f3b5d70c834f49f7d87a2f2ed1c6284d9a0322
- https://git.kernel.org/stable/c/d7c5d79e50be6e06b669141e3db1f977a0dd4e8e
- https://git.kernel.org/stable/c/e3e0e067d5b34e4a68e3cc55f8eebc413f56f8ed
- https://git.kernel.org/stable/c/fb7a5115422fbd6a4d505e8844f1ef5529f10489
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.190