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VULNERABILITIES

CVE-2026-98394 Details

Description

In the Linux kernel, the following vulnerability has been resolved: af_unix: Return immediately when manage_oob() returns NULL for 0-length buffer. Fahad Alharbi reported that recv(0, MSG_PEEK) triggers busy-wait in unix_stream_read_generic() if recv() is blocking and the last skb in the queue is MSG_OOB skb. In such a situation, TCP returns 0 immediately regardless of blocking or non-blocking. Let's follow the behaviour.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/3d3c7a3df66b2ca3d2cd1a2a0c37eb701feba713 kernel.org
https://git.kernel.org/stable/c/6e5ee08eb5858d175da6768d75d163817b6a9d4a kernel.org
https://git.kernel.org/stable/c/c81c5be3826c8467945b964d0cf7f7b3d65461db kernel.org
https://git.kernel.org/stable/c/d5dd55b316ca229a4cbf11729483ba5bb57233e7 kernel.org

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-98394
NVD Published Date:
Oct 14, 2026
NVD Last Modified:
Oct 19, 2026
Source:
kernel.org
CVE-2026-98394 Details - Not Deferred