CVE-2026-43066: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 преди 0892f12cd49fde5d5db68137923db107f894f3a3; 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 преди 5a63033696e60b5d70816f1d119645ac5b0b0a03; 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 преди 9c90449a9ac2cd1ba540ad2561b8b70c1bfb0a25; 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 преди ca99cbcc316cdfd2040cc2b13d1426ccb3b3b50b; 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 преди 19782b4c793b49a6aa4abbb307ddff3610009d21; 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 преди f7817ad399d604e8639005d87d148b5ec626ad26; 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 преди c426231e3d51916e83b6d1ab7ed8a65e83bca5b4; 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 преди ec0a7500d8eace5b4f305fa0c594dd148f0e8d29
• Linux Linux: 5.10; преди 5.10; 5.10.253 до 5.10.*; 5.15.203 до 5.15.*; 6.1.168 до 6.1.*; 6.6.131 до 6.6.*; 6.12.80 до 6.12.*; 6.18.21 до 6.18.*; 6.19.11 до 6.19.*; от 7.0 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-43066
• https://nvd.nist.gov/vuln/detail/CVE-2026-43066
• 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