CVE-2026-53284

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

btrfs: only release the dirty pages io tree after successful writes

[WARNING]

With extra warning on dirty extent buffers at umount (aka, the next

patch in the series), test case generic/388 can trigger the following

warning about dirty extent buffers at unmount time:

BTRFS critical (device dm-2 state E): emergency shutdown

BTRFS error (device dm-2 state E): error while writing out transaction: -30

BTRFS warning (device dm-2 state E): Skipping commit of aborted transaction.

BTRFS error (device dm-2 state EA): Transaction 9 aborted (error -30)

BTRFS: error (device dm-2 state EA) in cleanup_transaction:2068: errno=-30 Readonly filesystem

BTRFS info (device dm-2 state EA): forced readonly

BTRFS info (device dm-2 state EA): last unmount of filesystem 4fbf2e15-f941-49a0-bc7c-716315d2777c

------------[ cut here ]------------

WARNING: disk-io.c:3311 at invalidate_and_check_btree_folios+0xfd/0x1ca [btrfs],

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References