CVE-2026-90266btrfs: zoned: don't force read-only on transient -EAGAIN from reloc merge
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: don't force read-only on transient -EAGAIN from reloc merge On a zoned FS, btrfs_delayed_refs_rsv_refill() returns -EAGAIN whenever the over-committed metadata plus the zone_unusable bytes exceeds the usable size in a metadata block-group to avoid heavy over-commit of metadata and early ENOSPC in one transaction. If this happens while doing reclaim, the transaction is getting aborted. Treat -EAGAIN as a soft, retryable condition in case of block-group reclaim.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 7bcb04de982ff0718870112ad9f38c35cbca528b before 8249dfe46337d599e2087b772a2e32ef9f77282b; from 7bcb04de982ff0718870112ad9f38c35cbca528b before e549093c11a2fff8430df3dfbdb45eb9811a69a5 | CNA record |
References
- https://git.kernel.org/stable/c/8249dfe46337d599e2087b772a2e32ef9f77282b
- https://git.kernel.org/stable/c/e549093c11a2fff8430df3dfbdb45eb9811a69a5
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.