What is CVE-2026-98090?

CVE-2026-98090 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 5.15.11 onward and patched in 5.15.222, 6.1.189, 6.6.158 and others. CVE-2026-98090 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-98090?

CVE-2026-98090 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2026-98090?

Yes, CVE-2026-98090 has been patched. Fixed versions include 5.15.222, 6.1.189, 6.6.158 and others. If you are running Linux kernel 5.15.11 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-98090 actively exploited?

CVE-2026-98090 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-98090

In the Linux kernel, the following vulnerability has been resolved: btrfs: restore active device pointers after failed sprout btrfs_init_new_device() switches latest_dev and possibly s_bdev from the seed device to the new sprout device before creating the first writable chunks. If chunk creation or the subsequent sprout setup fails, the error path releases the new device without switching those pointers back. btrfs_show_devname() can then dereference the freed latest_dev and crash. Restore the active device pointers to the latest seed device before removing and releasing the failed sprout device.

Package Linux Kernel

Published 2026-09-25

Last modified 2026-10-03

Patch available

Yes

Affected versions

Linux kernel versions 5.15.11, 5.16 and later are affected. Fixed in 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3-rc2 and their respective stable series.

Affected from

≥ 5.15.11 ≥ 5.16

Fixed in

✓ 5.15.222 5.15.x ✓ 6.1.189 6.1.x ✓ 6.6.158 6.6.x ✓ 6.12.111 6.12.x ✓ 6.18.53 6.18.x ✓ 7.2.7 7.2.x ✓ 7.3-rc2

References

7 total

Showing 5 of 7 references View all on NVD

Frequently asked questions

What is CVE-2026-98090?

CVE-2026-98090 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.15.11 onward and has been patched in 5.15.222, 6.1.189, 6.6.158 and others. CVE-2026-98090 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2026-98090?

Yes. CVE-2026-98090 has been patched. Fixed versions include 5.15.222, 6.1.189, 6.6.158 and others. If you are running Linux kernel 5.15.11 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-98090 actively exploited?

No. CVE-2026-98090 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.