An issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.17.3, which does not properly validate secs_per_zone in a corrupted f2fs image, as demonstrated by a divide-by-zero error.Referenceshttp://www.securityfocus.com/bid/104679https://bugzilla.kernel.org/show_bug.cgi?id=200183https://lists.debian.org/debian-lts-announce/2019/03/msg00017.htmlhttps://seclists.org/bugtraq/2019/Jan/52http://lists.opensuse.org/opensuse-security-announce/2018-10/msg00033.htmlhttp://packetstormsecurity.com/files/151420/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.htmlhttps://usn.ubuntu.com/3932-1/https://usn.ubuntu.com/3932-2/https://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=42bf546c1fe3f3654bdf914e977acbc2b80a5be5
