{"id":"CVE-2026-43066","summary":"ext4: fix iloc.bh leak in ext4_fc_replay_inode() error paths","details":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix iloc.bh leak in ext4_fc_replay_inode() error paths\n\nDuring code review, Joseph found that ext4_fc_replay_inode() calls\next4_get_fc_inode_loc() to get the inode location, which holds a\nreference to iloc.bh that must be released via brelse().\n\nHowever, several error paths jump to the 'out' label without\nreleasing iloc.bh:\n\n - ext4_handle_dirty_metadata() failure\n - sync_dirty_buffer() failure\n - ext4_mark_inode_used() failure\n - ext4_iget() failure\n\nFix this by introducing an 'out_brelse' label placed just before\nthe existing 'out' label to ensure iloc.bh is always released.\n\nAdditionally, make ext4_fc_replay_inode() propagate errors\nproperly instead of always returning 0.","modified":"2026-07-15T01:49:11.739408007Z","published":"2026-05-05T15:23:25.984Z","related":["SUSE-SU-2026:22099-1","SUSE-SU-2026:22108-1","SUSE-SU-2026:22112-1","SUSE-SU-2026:22117-1","SUSE-SU-2026:22127-1","SUSE-SU-2026:22137-1","SUSE-SU-2026:22433-1","SUSE-SU-2026:22458-1","SUSE-SU-2026:2482-1","SUSE-SU-2026:2591-1","openSUSE-SU-2026:20965-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43066.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0892f12cd49fde5d5db68137923db107f894f3a3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/19782b4c793b49a6aa4abbb307ddff3610009d21"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5a63033696e60b5d70816f1d119645ac5b0b0a03"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9c90449a9ac2cd1ba540ad2561b8b70c1bfb0a25"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c426231e3d51916e83b6d1ab7ed8a65e83bca5b4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ca99cbcc316cdfd2040cc2b13d1426ccb3b3b50b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ec0a7500d8eace5b4f305fa0c594dd148f0e8d29"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f7817ad399d604e8639005d87d148b5ec626ad26"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43066.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43066"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2"},{"fixed":"0892f12cd49fde5d5db68137923db107f894f3a3"},{"fixed":"5a63033696e60b5d70816f1d119645ac5b0b0a03"},{"fixed":"9c90449a9ac2cd1ba540ad2561b8b70c1bfb0a25"},{"fixed":"ca99cbcc316cdfd2040cc2b13d1426ccb3b3b50b"},{"fixed":"19782b4c793b49a6aa4abbb307ddff3610009d21"},{"fixed":"f7817ad399d604e8639005d87d148b5ec626ad26"},{"fixed":"c426231e3d51916e83b6d1ab7ed8a65e83bca5b4"},{"fixed":"ec0a7500d8eace5b4f305fa0c594dd148f0e8d29"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43066.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.10.0"},{"fixed":"5.10.253"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.203"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.168"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.131"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.80"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.21"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.11"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43066.json"}}],"schema_version":"1.7.5"}