SB2026091776 - Use-after-free in Linux kernel usb go7007 driver
Published: September 17, 2026
Security Bulletin ID
SB2026091776
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use-after-free (CVE-ID: CVE-2026-89890)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to compromise confidentiality, integrity, and availability.
The vulnerability exists due to use-after-free in go7007 ALSA PCM callbacks when a capture PCM remains open during V4L2 device release. A local user can retain an open capture PCM during V4L2 device release to compromise confidentiality, integrity, and availability.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0745a59945d927652d892437f9647ed6e87c0677
- https://git.kernel.org/stable/c/1bd456afeb8a515137e567967069fce6f8fcd23e
- https://git.kernel.org/stable/c/1c57d1a3396b2d767d58f10dff09bb397586c714
- https://git.kernel.org/stable/c/1c9fdd9465211432d5c0ff70caaec0be245823d5
- https://git.kernel.org/stable/c/29fe4d38fb59ec28ca656cb2dabc2b0f78e78980
- https://git.kernel.org/stable/c/9c4f9628b8558c87903492a777834cc5be14ded3
- https://git.kernel.org/stable/c/b7a0de398ad510426db9c8e96c516ef7abf48b0e
- https://git.kernel.org/stable/c/e6f1a1ac9b8ccabfec548aef0d0d93eaf4dba4f4