SB20240530159 - Use-after-free in Linux kernel mellanox mlx4 driver
Published: May 30, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240530159
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-2021-47541)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the mlx4_en_try_alloc_resources() function in drivers/net/ethernet/mellanox/mlx4/en_netdev.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/be12572c5ddc8ad7453bada4eec8fa46967dc757
- https://git.kernel.org/stable/c/676dc7d9b15bf8733233a2db1ec3f9091ab34275
- https://git.kernel.org/stable/c/e461a9816a1ac5b4aeb61621b817225b61e46a68
- https://git.kernel.org/stable/c/f1d43efa59f1edd3e7eca0e94559b4c6b1cd4e2b
- https://git.kernel.org/stable/c/75917372eef0dbfb290ae45474314d35f97aea18
- https://git.kernel.org/stable/c/addad7643142f500080417dd7272f49b7a185570
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.257
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.220
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.84
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.164