Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 06ed09351b67eb1114ae106a87a0ee3ea9adb3db before 90e9eae1b5907fa36620ffb7f4f1a4afa9333427; affected 06ed09351b67eb1114ae106a87a0ee3ea9adb3db before c1fa005cdf3b7ff14cdfd7d512830088a3fc256b; affected 06ed09351b67eb1114ae106a87a0ee3ea9adb3db before 12b6d1a1715cbced2e445ca353f9c9987b8636e2; affected 06ed09351b67eb1114ae106a87a0ee3ea9adb3db before 81241f734f0f662378f5ffc53882b012923e6fe5; affected 06ed09351b67eb1114ae106a87a0ee3ea9adb3db before 8cc569696dac51fc62bb39b3b8f530582b916d29 |
| Linux / Linux | affected 6.6; unaffected 0 before 6.6; unaffected 6.6.157 through 6.6.*; unaffected 6.12.110 through 6.12.*; unaffected 6.18.52 through 6.18.*; unaffected 7.2.6 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/90e9eae1b5907fa36620ffb7f4f1a4afa9333427
- https://git.kernel.org/stable/c/c1fa005cdf3b7ff14cdfd7d512830088a3fc256b
- https://git.kernel.org/stable/c/12b6d1a1715cbced2e445ca353f9c9987b8636e2
- https://git.kernel.org/stable/c/81241f734f0f662378f5ffc53882b012923e6fe5
- https://git.kernel.org/stable/c/8cc569696dac51fc62bb39b3b8f530582b916d29