What is CVE-2026-52930?

CVE-2026-52930 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 3.1 onward and patched in 5.10.259, 5.15.210, 6.1.176 and others. CVE-2026-52930 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-52930?

CVE-2026-52930 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2026-52930?

Yes, CVE-2026-52930 has been patched. Fixed versions include 5.10.259, 5.15.210, 6.1.176 and others. If you are running Linux kernel 3.1 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-52930 actively exploited?

CVE-2026-52930 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-52930

In the Linux kernel, the following vulnerability has been resolved: ipc/shm: serialize orphan cleanup with shm_nattch updates shm_destroy_orphaned() walks the shm idr under shm_ids(ns).rwsem, but that does not serialize all fields tested by shm_may_destroy(). In particular, shm_nattch is updated while holding shm_perm.lock, and attach paths can do that without holding the rwsem. Do not decide that an orphaned segment is unused before taking the object lock. Move the shm_may_destroy() check under shm_perm.lock, matching the other destroy paths, and unlock the segment when it no longer qualifies for removal.

Package Linux Kernel

Published 2026-06-24

Last modified 2026-06-24

Patch available

Yes

Affected versions

Linux kernel versions 3.1 and later are affected. Fixed in 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.18.36, 7.0.13, 7.1 and their respective stable series.

Affected from

≥ 3.1

Fixed in

✓ 5.10.259 5.10.x ✓ 5.15.210 5.15.x ✓ 6.1.176 6.1.x ✓ 6.6.143 6.6.x ✓ 6.12.94 6.12.x ✓ 6.18.36 6.18.x ✓ 7.0.13 7.0.x ✓ 7.1

References

8 total

Showing 5 of 8 references View all on NVD

Frequently asked questions

What is CVE-2026-52930?

CVE-2026-52930 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 3.1 onward and has been patched in 5.10.259, 5.15.210, 6.1.176 and others. CVE-2026-52930 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2026-52930?

Yes — CVE-2026-52930 has been patched. Fixed versions include 5.10.259, 5.15.210, 6.1.176 and others. If you are running Linux kernel 3.1 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-52930 actively exploited?

No — CVE-2026-52930 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.