Linux kernel, ext4 filesystem vulnerabilities

A vulnerability in the Linux kernel related to the ext4 filesystem has been resolved, concerning the handling of wraparound when searching for blocks for indirect mapped files. A code change restricts block allocation to numbers fitting within 32-bit block numbers.

A vulnerability has been identified in the ext4 filesystem within the Linux kernel that occurs during block allocation in DIO mode. The issue arises from improper setting of the EXT4_GET_BLOCKS_CONVERT flag, which may lead to stale data problems.

A bitmap inconsistency issue was identified and resolved in the Linux kernel's ext4 filesystem, which occurred during stress tests with large page workloads. This issue was caused by a race condition between page migration and bitmap modification.

A vulnerability has been identified in the Linux kernel related to double decrementing the dirty clusters counter during the ext4 filesystem shutdown. This issue leads to a warning with a value of -1 for the dirty clusters counter, indicating an error in the error handling path.

A vulnerability has been identified in the Linux kernel related to the ext4 filesystem, concerning the caching of extents during the splitting process. Caching issues may lead to stale extents remaining in the status tree, resulting in space management errors.

In the Linux kernel, a vulnerability in the ext4 filesystem was found where stale extent entries may remain in the extent status tree when splitting an extent fails, leading to data inconsistency.

In the Linux kernel, a vulnerability in the ext4 filesystem was found related to incorrect zeroing of allocation ranges when splitting a large unwritten extent. Under certain conditions, when the extent splitting operation fails due to lack of space, stale data may remain in the written range, compromising data integrity.

A vulnerability in the Linux kernel related to the ext4 filesystem has been fixed, concerning use-after-free on failed mount attempts. The issue was that the s_err_report timer remained active, potentially leading to I/O errors.

A vulnerability has been identified in the Linux kernel within the ext4 filesystem that may lead to a use-after-free error in the ext4_ext_show_leaf() function. This issue occurs when the 'path' pointer is used after being freed or reallocated, potentially leading to unpredictable system behavior.