High · published September 15, 2025
In the Linux kernel, the following vulnerability has been resolved:
btrfs: abort transaction on unexpected eb generation at btrfs_copy_root()
If we find an unexpected generation for the extent buffer we are cloning
at btrfs_copy_root(), we just WARN_ON() and don't error out and abort the
transaction, meaning we allow to persist metadata with an unexpected
generation. Instead of warning only, abort the transaction and return
-EUCLEAN.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 2.6.29, < 6.1.149 | 6.1.149 |
| linux/linux_kernel | ≥ 6.2, < 6.6.103 | 6.6.103 |
| linux/linux_kernel | ≥ 6.7, < 6.12.44 | 6.12.44 |
| linux/linux_kernel | ≥ 6.13, < 6.16.4 | 6.16.4 |
| debian/debian_linux | all versions | — |