CVE-2026-98090
btrfs: restore active device pointers after failed sprout
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 25, 2026 |
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Affected Versions
Linux / Linux
b7cb29e666fe79dda5dbe5f57fb7c92413bf161c < 2ee5c4bc11007c51f63f0c1be5d3f07f2b404ff7 b7cb29e666fe79dda5dbe5f57fb7c92413bf161c < e127ac29a52134d0f4cba39d38e4b375deb3d1aa b7cb29e666fe79dda5dbe5f57fb7c92413bf161c < b79b4b29003690acfade8241998fc0104ef9c84c b7cb29e666fe79dda5dbe5f57fb7c92413bf161c < e0b54613aabeb8e9da597f23b90c6a03d0981986 a6e7e218a4d6488d56727a7d9aee1b7e78c0c485 5.15.11 < 5.16
Linux / Linux
5.16
References
git.kernel.org: https://git.kernel.org/stable/c/2ee5c4bc11007c51f63f0c1be5d3f07f2b404ff7 git.kernel.org: https://git.kernel.org/stable/c/e127ac29a52134d0f4cba39d38e4b375deb3d1aa git.kernel.org: https://git.kernel.org/stable/c/b79b4b29003690acfade8241998fc0104ef9c84c git.kernel.org: https://git.kernel.org/stable/c/e0b54613aabeb8e9da597f23b90c6a03d0981986