SB2024061345 - Improper locking in Linux kernel iommu iommufd driver
Published: June 13, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024061345
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-2024-26785)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the iommufd_test_syz_conv_iova(), iommufd_test_syz_conv_iova_id(), iommufd_test_access_pages() and iommufd_test_access_rw() functions in drivers/iommu/iommufd/selftest.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/fc719ecbca45c9c046640d72baddba3d83e0bc0b
- https://git.kernel.org/stable/c/cf7c2789822db8b5efa34f5ebcf1621bc0008d48
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.55
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8