The ext4_fill_super function in fs/ext4/super.c in the Linux kernel through 4.15.15 does not always initialize the crc32c checksum driver, which allows attackers to cause a denial of service (ext4_xattr_inode_hash NULL pointer dereference and system crash) via a crafted ext4 image.
| Product | Vendor | Version |
|---|---|---|
| Linux kernel through version 4.15 | n/a | < 550ed693f47370502a71b85382e7f9e6417300b8 |