CVE-2026-31777: Linux vulnerability

CVE-2026-31777: ALSA: ctxfi: Check the error for index mapping

In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Check the error for index mapping The ctxfi driver blindly assumed a proper value returned from daio_device_index(), but it's not always true. Add a proper error check to deal with the error from the function.

UnknownCVSS not scoredNot KEV-listedUpdatedOct 15, 2026, 10:07 UTC (UTC+00:00)

Potential ATT&CK relevance

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CVE-2026-31777 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 1, 2026, 14:15 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

3Timeline events

0ADP providers

4Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
Mar 9, 2026, 15:48 UTC (UTC+00:00)
CVE publishedCVE Program
The CVE record was published.
May 1, 2026, 14:15 UTC (UTC+00:00)
CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
Oct 15, 2026, 10:07 UTC (UTC+00:00)

Source materials

CVE List V5 sourceCVE List V5
https://git.kernel.org/stable/c/971854e7b6ddda78669d3d0cf6566c7b8aca1fdbCVE reference, Linux
https://git.kernel.org/stable/c/d4d3b8cbb70a2de247cbfe99bdb232aef9ed59bcCVE reference, Linux
https://git.kernel.org/stable/c/277c6960d4ddb94d16198afd70c92c3d4593d131CVE reference, Linux

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

LinuxLinux8cc72361481f00253f1e468ade5795427386d593, 8cc72361481f00253f1e468ade5795427386d593, 8cc72361481f00253f1e468ade5795427386d593unaffected

LinuxLinux2.6.31, 0, 6.18.57, 6.19.12, 7.0affected

Weakness

CWE details

No CWE listed

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