SB20241022124 - Improper locking in Linux kernel iommu intel driver
Published: October 22, 2024 Updated: May 12, 2025
Security Bulletin ID
SB20241022124
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-2024-49993)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the free_iommu() and raw_spin_lock() functions in drivers/iommu/intel/dmar.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/de9e7f68762585f7532de8a06de9485bf39dbd38
- https://git.kernel.org/stable/c/8840dc73ac9e1028291458ef1429ec3c2524ffec
- https://git.kernel.org/stable/c/e03f00aa4a6c0c49c17857a4048f586636abdc32
- https://git.kernel.org/stable/c/dfdbc5ba10fb792c9d6d12ba8cb6e465f97365ed
- https://git.kernel.org/stable/c/07e4e92f84b7d3018b7064ef8d8438aeb54a2ca5
- https://git.kernel.org/stable/c/92ba5b014d5435dd7a1ee02a2c7f2a0e8fe06c36
- https://git.kernel.org/stable/c/3cf74230c139f208b7fb313ae0054386eee31a81
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.227
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.168
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.113
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.55