btrfs: zoned: don't force read-only on transient -EAGAIN from reloc merge

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-90266
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-17 17:17:23 UTC
Updated2026-09-17 17:17:23 UTC
DescriptionIn 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.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 7bcb04de982ff0718870112ad9f38c35cbca528b 8249dfe46337d599e2087b772a2e32ef9f77282b git Not specified
CNA Linux Linux affected 7bcb04de982ff0718870112ad9f38c35cbca528b e549093c11a2fff8430df3dfbdb45eb9811a69a5 git Not specified
CNA Linux Linux affected 7.1 Not specified
CNA Linux Linux unaffected 7.1 semver Not specified
CNA Linux Linux unaffected 7.2.6 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/e549093c11a2fff8430df3dfbdb45eb9811a69a5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8249dfe46337d599e2087b772a2e32ef9f77282b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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