btrfs: zoned: don't force read-only on transient -EAGAIN from reloc merge
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.
CVE-2026-90266
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-90266
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "7bcb04de982ff0718870112ad9f38c35cbca528b",
"lessThan": "8249dfe46337d599e2087b772a2e32ef9f77282b",
"versionType": "git"
},
{
"status": "affected",
"version": "7bcb04de982ff0718870112ad9f38c35cbca528b",
"lessThan": "e549093c11a2fff8430df3dfbdb45eb9811a69a5",
"versionType": "git"
}
],
"programFiles": [
"fs/btrfs/block-group.c",
"fs/btrfs/relocation.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "7.1"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "7.1",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/btrfs/block-group.c",
"fs/btrfs/relocation.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-90266
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #36626 · Revision 1
- Added to Heist Feed
- Publisher date