SB2025091851 - Use-after-free in Linux kernel pci driver
Published: September 18, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091851
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-2023-53363)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the pci_remove_root_bus() function in drivers/pci/remove.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/07a75c0050e59c50f038cc5f4e2a3258c8f8c9d0
- https://git.kernel.org/stable/c/30ba2d09edb5ea857a1473ae3d820911347ada62
- https://git.kernel.org/stable/c/52b0343c7d628f37b38e3279ba585526b850ad3b
- https://git.kernel.org/stable/c/ad367516b1c09317111255ecfbf5e42c33e31918
- https://git.kernel.org/stable/c/fbf45385e3419b8698b5e0a434847072375cfec2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.136