Description: buffer overrun in build_sit_info() when mounting a crafted f2fs image
References:
 https://bugzilla.kernel.org/show_bug.cgi?id=200167
 https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=f2fs-dev&id=8c9c95d5f4e68d22f22091546ce554ac9222689c
Notes:
Bugs:
upstream: released (4.19-rc1) [e34438c903b653daca2b2a7de95aed46226f8ed3]
4.19-upstream-stable: N/A "Fixed before branch point"
4.9-upstream-stable: released (4.9.144) [1c87980591a1dc8c5eafdcc5f9953fca4e518465]
3.16-upstream-stable: ignored "Hard to backport and low priority outside of Android"
sid: released (4.19.9-1)
4.9-stretch-security: released (4.9.144-1)
3.16-jessie-security: ignored "Hard to backport and low priority outside of Android"