SB2024053108 - Use-after-free in Linux kernel iommu iommufd driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024053108
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-2023-52801)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the iopt_area_split() function in drivers/iommu/iommufd/io_pagetable.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/836db2e7e4565d8218923b3552304a1637e2f28d
- https://git.kernel.org/stable/c/fcb32111f01ddf3cbd04644cde1773428e31de6a
- https://git.kernel.org/stable/c/e7250ab7ca4998fe026f2149805b03e09dc32498
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7