High 7.1Published Jul 4, 2026

CVE-2026-53361af_unix: Set gc_in_progress to true in unix_gc().

Updated under an hour ago (Oct 27, 2026, 6:00 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: af_unix: Set gc_in_progress to true in unix_gc(). Igor Ushakov reported that unix_gc() could run with gc_in_progress being false if the work is scheduled while running: Thread 1 Thread 2 Thread 3 -------- -------- -------- unix_schedule_gc() unix_schedule_gc() `- if (!gc_in_progress) `- if (!gc_in_progress) |- gc_in_progress = true | `- queue_work() | unix_gc() <----------------/ | | |- gc_in_progress = true ... `- queue_work() | | `- gc_in_progress = false | | unix_gc() <---------------------------------------------' | ... /* gc_in_progress == false */ | `- gc_in_progress = false unix_peek_fpl() relies on gc_in_progress not to confuse GC by MSG_PEEK. Let's set gc_in_progress to true in unix_gc().

CVSS: 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Weakness (CWE): CWE-362
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from ceb8bd6c69c1680fd9b45e7f16d7170c9c7513a5 before 20aa894d475bd8086b25c1113ec4ca70f70c7a98; 328840c93bd6a4871dd10908d01b41eab83eb8e2 builds before 82c17e13d404f686e164590483fd6c1abaa675d0; from 8b90a9f819dc2a06baae4ec1a64d875e53b824ec before 591f1ac217428a6d2b32a8ac14aac0fab44f155a; 8b90a9f819dc2a06baae4ec1a64d875e53b824ec builds before 0cfa78c050662784fc8e3ab26dbfd1dc632b2082; from 8b90a9f819dc2a06baae4ec1a64d875e53b824ec before d82ba05263c69fa2437fe93e4e561cc40f4c03af; from 6.1.141 before 6.1.183; from 6.6.93 before 6.6.144	CNA record
linux linux_kernel linux:linux_kernel	from 6.1.141 before 6.2; from 6.6.93 before 6.6.144; from 6.9 before 6.12.95; from 6.13 before 6.18.38; from 6.19 before 7.1; 7.1; 7.1	NVD

References

References

https://git.kernel.org/stable/c/20aa894d475bd8086b25c1113ec4ca70f70c7a98
https://git.kernel.org/stable/c/82c17e13d404f686e164590483fd6c1abaa675d0	patch
https://git.kernel.org/stable/c/591f1ac217428a6d2b32a8ac14aac0fab44f155a	patch
https://git.kernel.org/stable/c/0cfa78c050662784fc8e3ab26dbfd1dc632b2082	patch
https://git.kernel.org/stable/c/d82ba05263c69fa2437fe93e4e561cc40f4c03af	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.