Description
In the Linux kernel, the following vulnerability has been resolved:
btrfs: retry verity reads for not-uptodate Merkle folios
btrfs_read_merkle_tree_page() can find a folio in the mapping that is not uptodate. After taking the folio lock, the current code treats that state as a read error and returns -EIO.
That can make a previous transient read failure sticky. If the failed read left a not-uptodate folio in the mapping, later callers find that folio and fail instead of retrying the read.
Keep the existing page-cache insertion and locking order, but retry the Merkle item read when a not-uptodate folio is found in the mapping. Also unlock the folio when read_key_bytes() fails so that a later caller can lock it and retry the read.
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 06ed09351b67eb1114ae106a87a0ee3ea9adb3db, < 90e9eae1b5907fa36620ffb7f4f1a4afa9333427; >= 06ed09351b67eb1114ae106a87a0ee3ea9adb3db, < c1fa005cdf3b7ff14cdfd7d512830088a3fc256b; >= 06ed09351b67eb1114ae106a87a0ee3ea9adb3db, < 12b6d1a1715cbced2e445ca353f9c9987b8636e2; >= 06ed09351b67eb1114ae106a87a0ee3ea9adb3db, < 81241f734f0f662378f5ffc53882b012923e6fe5; >= 06ed09351b67eb1114ae106a87a0ee3ea9adb3db, < 8cc569696dac51fc62bb39b3b8f530582b916d29 |
| Linux | Linux | 6.6 |
References
- https://git.kernel.org/stable/c/12b6d1a1715cbced2e445ca353f9c9987b8636e2
- https://git.kernel.org/stable/c/81241f734f0f662378f5ffc53882b012923e6fe5
- https://git.kernel.org/stable/c/8cc569696dac51fc62bb39b3b8f530582b916d29
- https://git.kernel.org/stable/c/90e9eae1b5907fa36620ffb7f4f1a4afa9333427
- https://git.kernel.org/stable/c/c1fa005cdf3b7ff14cdfd7d512830088a3fc256b
Timeline
- Published
- Sep 17, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Received