An issue was discovered in fs/f2fs/inode.c in the Linux kernel through 4.17.3. A denial of service (slab out-of-bounds read and BUG) can occur for a modified f2fs filesystem image in which FI_EXTRA_ATTR is set in an inode.Referenceshttps://bugzilla.kernel.org/show_bug.cgi?id=200173http://lists.opensuse.org/opensuse-security-announce/2018-10/msg00033.htmlhttps://usn.ubuntu.com/4094-1/https://usn.ubuntu.com/4118-1/https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=76d56d4ab4f2a9e4f085c7d77172194ddaccf7d2
