CVE-2026-98394
Received Received - Intake

Unix Stream Read Blocking Issue in Linux Kernel

Publication date: 2026-10-14

Last updated on: 2026-10-14

Assigner: kernel.org

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.

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Meta Information

Published
2026-10-14
Last Modified
2026-10-14
Generated
2026-10-14
EPSS Evaluated
N/A
NVD
CVE-2026-98394
EUVD
EUVD-2026-101043

Affected Vendors & Products

Showing 5 associated CPEs
Vendor Product Version / Range
Linux Linux 314001f0bf927015e459c9d387d62a231fe93af3
Linux Linux 314001f0bf927015e459c9d387d62a231fe93af3
Linux Linux 314001f0bf927015e459c9d387d62a231fe93af3
Linux Linux 314001f0bf927015e459c9d387d62a231fe93af3
Linux Linux 5.15

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Exploitability

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KEV
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CWE ID Description
CWE-UNKNOWN

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