SB2026090562 - Race condition in Linux kernel can
Published: September 5, 2026
Security Bulletin ID
SB2026090562
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Race condition (CVE-ID: CVE-2026-80889)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a race condition in the CAN ISO-TP socket transmission state handling when concurrently sending data and releasing an ISO-TP socket. A local user can trigger conflicting transmission-state transitions to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/050f010f920da17c1044a4f174766ad553e770b6
- https://git.kernel.org/stable/c/10be509fa8fd95d1e47d40d1f68b0b26dfe9d572
- https://git.kernel.org/stable/c/2753722612d8824d3910096f93059f669009b0f0
- https://git.kernel.org/stable/c/35c62ac98d06669aa3f0f38b7829eaca929a611e
- https://git.kernel.org/stable/c/8acab9fc66d6f426c36968c91a979f70784945a7
- https://git.kernel.org/stable/c/af7e25c649ed68cbad07f8185af0f31b892cbf29
- https://git.kernel.org/stable/c/bf5c4a8b24acb12739ebb9aea5510b007e4f5239
- https://git.kernel.org/stable/c/deca7746b57d982cd4f0301f4443f56780c4a048