SB2024060834 - Improper locking in Linux kernel vfio pci driver
Published: June 8, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024060834
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2024-26810)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the vfio_send_intx_eventfd(), vfio_pci_intx_mask(), vfio_pci_intx_unmask_handler(), vfio_pci_set_intx_unmask() and vfio_pci_set_intx_mask() functions in drivers/vfio/pci/vfio_pci_intrs.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3fe0ac10bd117df847c93408a9d428a453cd60e5
- https://git.kernel.org/stable/c/04a4a017b9ffd7b0f427b8c376688d14cb614651
- https://git.kernel.org/stable/c/6fe478d855b20ac1eb5da724afe16af5a2aaaa40
- https://git.kernel.org/stable/c/03505e3344b0576fd619416793a31eae9c5b73bf
- https://git.kernel.org/stable/c/810cd4bb53456d0503cc4e7934e063835152c1b7
- https://git.kernel.org/stable/c/ec73e079729258a05452356cf6d098bf1504d5a6
- https://git.kernel.org/stable/c/1e71b6449d55179170efc8dee8664510bb813b42
- https://git.kernel.org/stable/c/3dd9be6cb55e0f47544e7cdda486413f7134e3b3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.215