#VU90078 Use-after-free in Linux kernel - CVE-2023-52801
Published: May 31, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90078
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-52801
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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.
External links
- 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