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CVE-2026-90266

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

N/A
Published: September 17, 2026 at 04:08 PM UTC
Updated: October 19, 2026 at 09:19 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
7.17bcb04de982ff0718870112ad9f38c35cbca528b
Vendor states this is fixed in 8249dfe46337d599e2087b772a2e32ef9f77282b (fixed)
Vendor states this is fixed in e549093c11a2fff8430df3dfbdb45eb9811a69a5 (fixed)
Vendor states this is fixed in 7.1 (unaffected)
Vendor states this is fixed in 7.2.6 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: cverecord
https://git.kernel.org/stable/c/8249dfe46337d599e2087b772a2e32ef9f77282b
Source: cverecord
https://git.kernel.org/stable/c/e549093c11a2fff8430df3dfbdb45eb9811a69a5

Quick Info

StatusRECEIVED

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