CVE-2026-31602: ALSA: ctxfi: Limit PTP to a single page
ALSA: ctxfi: Limit PTP to a single page
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 - Configuration
Revert CT_PTP_NUM to 1 so the PTP is limited to a single page.
ALSA ctxfi CT_PTP_NUM = 1
Event History
Frequently Asked Questions
What is the severity of CVE-2026-31602?
CVE-2026-31602 has a high severity rating of 7.8 according to the CVSS v3.1 metrics.
How do I fix CVE-2026-31602?
To mitigate CVE-2026-31602, update the Linux kernel to a version that includes the fix for the ALSA ctxfi vulnerability.
What impact does CVE-2026-31602 have on my system?
CVE-2026-31602 could potentially lead to denial of service or memory corruption due to incorrect handling of playback streams.
In which versions of the Linux kernel is CVE-2026-31602 present?
CVE-2026-31602 is present in versions of the Linux kernel prior to the fix implemented in the commit associated with the vulnerability.
What does PTP refer to in CVE-2026-31602?
In the context of CVE-2026-31602, PTP refers to Precision Time Protocol, which is utilized for high precision time synchronization.