CVE-2026-98090 Affecting linux-6.12 package, versions <6.12.111-1~deb12u1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN12-LINUX612-20507015
- published5 Oct 2026
- disclosed25 Sept 2026
Introduced: 25 Sep 2026
NewCVE-2026-98090 (opens in a new tab)How to fix?
Upgrade Debian:12 linux-6.12 to version 6.12.111-1~deb12u1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream linux-6.12 package and not the linux-6.12 package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2026-98090
- https://git.kernel.org/stable/c/2ee5c4bc11007c51f63f0c1be5d3f07f2b404ff7
- https://git.kernel.org/stable/c/b79b4b29003690acfade8241998fc0104ef9c84c
- https://git.kernel.org/stable/c/e0b54613aabeb8e9da597f23b90c6a03d0981986
- https://git.kernel.org/stable/c/e127ac29a52134d0f4cba39d38e4b375deb3d1aa
- https://git.kernel.org/stable/c/0a0ee38ad6324ac1603079bb785f784191576bd5
- https://git.kernel.org/stable/c/46863a9f93186e620c70584f91c8d5d95da83eff
- https://git.kernel.org/stable/c/49179f13c04735c55fd0f43b03696c015b067137