description: 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.
problem types: NULL pointer dereference
affected:
{
product: Linux kernel through version 4.15
vendor: n/a
versions:
status: affected, version: Linux kernel through version 4.15
}