SB20260527102 - Improper control of a resource through its lifetime in Linux kernel media rc driver
Published: May 27, 2026
Security Bulletin ID
SB20260527102
CSH 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 vulnerability.
1) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-46091)
CWE-ID: CWE-664 - Improper control of a resource through its lifetime
CVSSv4: 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
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper handling of dma coherency in igorplugusb when processing a usb control request. A local user can trigger a crafted interaction with the usb device to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0adac0ee2c42027d80bac02ea9b576a88f8955d3
- https://git.kernel.org/stable/c/0be8fcd9005e3d3b5a61fe34b070a9663adbb4dc
- https://git.kernel.org/stable/c/18d6a7c9e4e63c57157e9a57dd9bf3cd38e4c45a
- https://git.kernel.org/stable/c/a62ca67e3c72fb297dc7c86495ba8f7329d7f150
- https://git.kernel.org/stable/c/eac69475b01fe1e861dfe3960b57fa95671c132e