SB2025100471 - Use-after-free in Linux kernel intel iavf driver
Published: October 4, 2025 Updated: October 27, 2025
Security Bulletin ID
SB2025100471
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-2023-53556)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the iavf_alloc_q_vectors() function in drivers/net/ethernet/intel/iavf/iavf_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/17046107ca15d7571551539d94e76aba2bf71fd3
- https://git.kernel.org/stable/c/345c44e18cc10cded85cb9134830e1684495c866
- https://git.kernel.org/stable/c/5f4fa1672d98fe99d2297b03add35346f1685d6b
- https://git.kernel.org/stable/c/8d781a9c53034813c3194b7d94409c7d24ac73eb
- https://git.kernel.org/stable/c/a4635f190f332304db4a49e827ece790b804b5db
- https://git.kernel.org/stable/c/ca12b98e04b5d1902ac08fe826d3500cb4b6e891
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.42