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().

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
328840c93bd6a4871dd10908d01b41eab83eb8e2 affected < 82c17e13d404f686e164590483fd6c1abaa675d0
8b90a9f819dc2a06baae4ec1a64d875e53b824ec affected < 591f1ac217428a6d2b32a8ac14aac0fab44f155a
8b90a9f819dc2a06baae4ec1a64d875e53b824ec affected < 0cfa78c050662784fc8e3ab26dbfd1dc632b2082
8b90a9f819dc2a06baae4ec1a64d875e53b824ec affected < d82ba05263c69fa2437fe93e4e561cc40f4c03af
ceb8bd6c69c1680fd9b45e7f16d7170c9c7513a5 affected —
6.6.93 affected < 6.6.144
6.1.141 affected < 6.2
Linux Linux affected
Version Status Constraints
6.9 affected —
0 unaffected < 6.9
6.6.144 unaffected ≤ 6.6.*
6.12.95 unaffected ≤ 6.12.*
6.18.38 unaffected ≤ 6.18.*
7.1 unaffected ≤ *

No data.

No data.

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Fixes

Solution

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Workaround

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References
Link Providers
https://git.kernel.org/stable/c/0cfa78c050662784fc8e3ab26dbfd1dc632b2082 cve-icon
https://git.kernel.org/stable/c/591f1ac217428a6d2b32a8ac14aac0fab44f155a cve-icon
https://git.kernel.org/stable/c/82c17e13d404f686e164590483fd6c1abaa675d0 cve-icon
https://git.kernel.org/stable/c/d82ba05263c69fa2437fe93e4e561cc40f4c03af cve-icon
History

Sat, 04 Jul 2026 12:15:00 +0000

Type Values Removed Values Added
Description 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().
Title af_unix: Set gc_in_progress to true in unix_gc().
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-07-04T11:54:52.543Z

Reserved: 2026-06-09T07:44:35.400Z

Link: CVE-2026-53361

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-04T13:30:16Z

Weaknesses

No weakness.