SB2024053117 - Use-after-free in Linux kernel ethernet xilinx driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024053117
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-2021-47224)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the temac_start_xmit() function in drivers/net/ethernet/xilinx/ll_temac_main.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/6d120ab4dc39a543c6b63361e1d0541c382900a3
- https://git.kernel.org/stable/c/019ab7d044d0ebf97e1236bb8935b7809be92358
- https://git.kernel.org/stable/c/e8afe05bd359ebe12a61dbdc94c06c00ea3e8d4b
- https://git.kernel.org/stable/c/6aa32217a9a446275440ee8724b1ecaf1838df47
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.46
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.128