CVE-2026-90266
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 7bcb04de982ff0718870112ad9f38c35cbca528b < 8249dfe46337d599e2087b772a2e32ef9f77282b | affected |
| Linux | Linux | 7bcb04de982ff0718870112ad9f38c35cbca528b < e549093c11a2fff8430df3dfbdb45eb9811a69a5 | affected |
| Linux | Linux | 7.1 | affected |
| Linux | Linux | 0 < 7.1 | unaffected |
| Linux | Linux | 7.2.6 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/8249dfe46337d599e2087b772a2e32ef9f77282b
- https://git.kernel.org/stable/c/e549093c11a2fff8430df3dfbdb45eb9811a69a5
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