Description: Divide zero in reset_curseg() when mounting a crafted f2fs image
References:
 https://bugzilla.kernel.org/show_bug.cgi?id=200183
 https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=f2fs-dev&id=e72ba39212abc9e77f367cd95d7d3c8689aba14a
Notes:
Bugs:
upstream: released (4.19-rc1) [42bf546c1fe3f3654bdf914e977acbc2b80a5be5]
4.19-upstream-stable: N/A "Fixed before branch point"
4.9-upstream-stable: released (4.9.144) [a3dccfacd3a574365ab6c5118f8a944a4ba691fa]
3.16-upstream-stable: ignored "Hard to backport and low priority outside of Android"
sid: released (4.18.10-1)
4.9-stretch-security: released (4.9.144-1)
3.16-jessie-security: ignored "Hard to backport and low priority outside of Android"