CVE-2026-43066
In the Linux kernel, the following vulnerability has been resolved: ext4: fix iloc.bh leak in ext4_fc_replay_inode() error paths During code review, Joseph found that ext4_fc_replay_inode() calls ext4_get_fc_inode_loc() to get the inode location, which…
Does this matter?
Lower severity and a low EPSS score (0.12%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: ext4: fix iloc.bh leak in ext4_fc_replay_inode() error paths During code review, Joseph found that ext4_fc_replay_inode() calls ext4_get_fc_inode_loc() to get the inode location, which holds a reference to iloc.bh that must be released via brelse(). However, several error paths jump to the 'out' label without releasing iloc.bh: - ext4_handle_dirty_metadata() failure - sync_dirty_buffer() failure - ext4_mark_inode_used() failure - ext4_iget() failure Fix this by introducing an 'out_brelse' label placed just before the existing 'out' label to ensure iloc.bh is always released. Additionally, make ext4_fc_replay_inode() propagate errors properly instead of always returning 0.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.12% probability · 2th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-401
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0892f12cd49fde5d5db68137923db107f894f3a3Patch
- https://git.kernel.org/stable/c/19782b4c793b49a6aa4abbb307ddff3610009d21Patch
- https://git.kernel.org/stable/c/5a63033696e60b5d70816f1d119645ac5b0b0a03Patch
- https://git.kernel.org/stable/c/9c90449a9ac2cd1ba540ad2561b8b70c1bfb0a25Patch
- https://git.kernel.org/stable/c/c426231e3d51916e83b6d1ab7ed8a65e83bca5b4Patch
- https://git.kernel.org/stable/c/ca99cbcc316cdfd2040cc2b13d1426ccb3b3b50bPatch
- https://git.kernel.org/stable/c/ec0a7500d8eace5b4f305fa0c594dd148f0e8d29Patch
- https://git.kernel.org/stable/c/f7817ad399d604e8639005d87d148b5ec626ad26Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.