In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image and performing some operations can cause slab-out-of-bounds write access in __btrfs_map_block in fs/btrfs/volumes.c, because a value of 1 for the number of data stripes is mishandled. CREATE(Triage):(User=admin) CVE-2019-19816 (https://nvd.nist.gov/vuln/detail/CVE-2019-19816)
