CVE-2026-31474: can: isotp: fix tx.buf use-after-free in isotp_sendmsg()
can: isotp: fix tx.buf use-after-free in isotpsendmsg()
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.115-2Fixed in 7.2.12-1Fixed in 7.2.15-1
Event History
Frequently Asked Questions
What is the severity of CVE-2026-31474?
CVE-2026-31474 has been classified as a medium severity vulnerability due to the potential for a use-after-free condition in the Linux kernel.
How do I fix CVE-2026-31474?
To fix CVE-2026-31474, update your Linux kernel to a version that has patched the vulnerability.
What systems are affected by CVE-2026-31474?
CVE-2026-31474 affects multiple versions of the Linux kernel, specifically from 6.4.1 to 6.19.11 and several release candidates of 7.0.
What impact does CVE-2026-31474 have on my system?
Exploitation of CVE-2026-31474 could result in a system crash or allow an attacker to execute arbitrary code with kernel privileges.
Is there a workaround for CVE-2026-31474?
Currently, the recommended mitigation for CVE-2026-31474 is to apply the latest kernel updates provided by your Linux distribution.