CVE-2026-43066In 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 ext…
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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
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-401
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 5.10 before 5.10.253; from 5.11 before 5.15.203; from 5.16 before 6.1.168; from 6.2 before 6.6.131; from 6.7 before 6.12.80; from 6.13 before 6.18.21; from 6.19 before 6.19.11; 7.0; and 4 more ranges | NVD |
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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.