-

CVE-2026-98394

af_unix: Return immediately when manage_oob() returns NULL for 0-length buffer.

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 314001f0bf927015e459c9d387d62a231fe93af3
Version < 3d3c7a3df66b2ca3d2cd1a2a0c37eb701feba713
Status affected
Version 314001f0bf927015e459c9d387d62a231fe93af3
Version < d5dd55b316ca229a4cbf11729483ba5bb57233e7
Status affected
Version 314001f0bf927015e459c9d387d62a231fe93af3
Version < c81c5be3826c8467945b964d0cf7f7b3d65461db
Status affected
Version 314001f0bf927015e459c9d387d62a231fe93af3
Version < 6e5ee08eb5858d175da6768d75d163817b6a9d4a
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 5.15
Status affected
Version 0
Version < 5.15
Status unaffected
Version <= 6.12.*
Version 6.12.111
Status unaffected
Version <= 6.18.*
Version 6.18.53
Status unaffected
Version <= 7.2.*
Version 7.2.7
Status unaffected
Version <= *
Version 7.3
Status unaffected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.103
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/3d3c7a3df66b2ca3d2cd1a2a0c37eb701feba713
https://git.kernel.org/stable/c/d5dd55b316ca229a4cbf11729483ba5bb57233e7
https://git.kernel.org/stable/c/c81c5be3826c8467945b964d0cf7f7b3d65461db
https://git.kernel.org/stable/c/6e5ee08eb5858d175da6768d75d163817b6a9d4a