What is CVE-2026-68422?

CVE-2026-68422 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 5.13 onward and patched in 5.15.216, 6.1.183, 6.6.148 and others. CVE-2026-68422 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-68422?

CVE-2026-68422 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2026-68422?

Yes, CVE-2026-68422 has been patched. Fixed versions include 5.15.216, 6.1.183, 6.6.148 and others. If you are running Linux kernel 5.13 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-68422 actively exploited?

CVE-2026-68422 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-68422

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix root leak if its reloc root is unexpected in merge_reloc_roots() If we have an unexpected reloc_root for our root, we jump to the out label but never drop the reference we obtained for root, resulting in a leak. Add a missing btrfs_put_root() call.

Package Linux Kernel

Published 2026-08-10

Last modified 2026-08-19

Patch available

Yes

Affected versions

Linux kernel versions 5.13 and later are affected. Fixed in 5.15.216, 6.1.183, 6.6.148, 6.12.101, 6.18.42, 7.1.6, 7.2 and their respective stable series.

Affected from

≥ 5.13

Fixed in

✓ 5.15.216 5.15.x ✓ 6.1.183 6.1.x ✓ 6.6.148 6.6.x ✓ 6.12.101 6.12.x ✓ 6.18.42 6.18.x ✓ 7.1.6 7.1.x ✓ 7.2

References

7 total

Showing 5 of 7 references View all on NVD

Frequently asked questions

What is CVE-2026-68422?

CVE-2026-68422 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.13 onward and has been patched in 5.15.216, 6.1.183, 6.6.148 and others. CVE-2026-68422 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2026-68422?

Yes. CVE-2026-68422 has been patched. Fixed versions include 5.15.216, 6.1.183, 6.6.148 and others. If you are running Linux kernel 5.13 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-68422 actively exploited?

No. CVE-2026-68422 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.