#VU99012 Improper locking in Linux kernel - CVE-2024-49993
Published: October 22, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU99012
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-49993
CWE-ID: CWE-667
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 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.
External links
- 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