Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 before 0892f12cd49fde5d5db68137923db107f894f3a3; affected 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 before 5a63033696e60b5d70816f1d119645ac5b0b0a03; affected 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 before 9c90449a9ac2cd1ba540ad2561b8b70c1bfb0a25; affected 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 before ca99cbcc316cdfd2040cc2b13d1426ccb3b3b50b; affected 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 before 19782b4c793b49a6aa4abbb307ddff3610009d21; affected 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 before f7817ad399d604e8639005d87d148b5ec626ad26; affected 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 before c426231e3d51916e83b6d1ab7ed8a65e83bca5b4; affected 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 before ec0a7500d8eace5b4f305fa0c594dd148f0e8d29 |
| Linux / Linux | affected 5.10; unaffected 0 before 5.10; unaffected 5.10.253 through 5.10.*; unaffected 5.15.203 through 5.15.*; unaffected 6.1.168 through 6.1.*; unaffected 6.6.131 through 6.6.*; unaffected 6.12.80 through 6.12.*; unaffected 6.18.21 through 6.18.*; unaffected 6.19.11 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/0892f12cd49fde5d5db68137923db107f894f3a3
- https://git.kernel.org/stable/c/5a63033696e60b5d70816f1d119645ac5b0b0a03
- https://git.kernel.org/stable/c/9c90449a9ac2cd1ba540ad2561b8b70c1bfb0a25
- https://git.kernel.org/stable/c/ca99cbcc316cdfd2040cc2b13d1426ccb3b3b50b
- https://git.kernel.org/stable/c/19782b4c793b49a6aa4abbb307ddff3610009d21
- https://git.kernel.org/stable/c/f7817ad399d604e8639005d87d148b5ec626ad26
- https://git.kernel.org/stable/c/c426231e3d51916e83b6d1ab7ed8a65e83bca5b4
- https://git.kernel.org/stable/c/ec0a7500d8eace5b4f305fa0c594dd148f0e8d29