CVE-2022-50021

A use-after-free vulnerability exists in the linux kernel, such thatthe Block range to free is validated in ext4_free_blocks() using ext4_inode_block_valid() and then it's passed to ext4_mb_clear_bb().However, in some situations on bigalloc file system the range might be adjusted after the validation in ext4_free_blocks() which can lead to corrupted file systems

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.