CVE-2026-90262
CVE CVE-2026-90262EUVD EUVD-2026-81855Published 2026-09-17T16:07:59.000Z
What the advisory describes
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.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 0; 06ed09351b67eb1114ae106a87a0ee3ea9adb3db <90e9eae1b5907fa36620ffb7f4f1a4afa9333427; 06ed09351b67eb1114ae106a87a0ee3ea9adb3db <c1fa005cdf3b7ff14cdfd7d512830088a3fc256b; patch: 7.2.6; 06ed09351b67eb1114ae106a87a0ee3ea9adb3db <81241f734f0f662378f5ffc53882b012923e6fe5; 06ed09351b67eb1114ae106a87a0ee3ea9adb3db <8cc569696dac51fc62bb39b3b8f530582b916d29; patch: 7.3-rc1; patch: 6.18.52; patch: 6.6.157; patch: 6.12.110; 6.6; 06ed09351b67eb1114ae106a87a0ee3ea9adb3db <12b6d1a1715cbced2e445ca353f9c9987b8636e2
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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