CVE-2026-53361

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-53361

Key Details

CVE	CVE-2026-53361
CVSS Score / Version	7.1 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is none; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Affected Products, Subsystems & Sectors

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

What to Know

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(). (NVD)

What to Do

Monitor Linux's web page for any future patch releases.

References

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-53361
CVE	https://www.cve.org/CVERecord?id=CVE-2026-53361

Source

Reference

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-53361

CVE

https://www.cve.org/CVERecord?id=CVE-2026-53361