Description: f2fs: Heap out-of-bounds read in init_min_max_mtime()
References:
 https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19449
Notes:
 bwh> The loop in init_min_max_mtime() has not changed between
 bwh> 4.9 and 5.17-rc4, and there don't appear to be any checks
 bwh> that main_segments is exactly divisible by segs_per_sec,
 bwh> so all branches are affected.
Bugs:
upstream: needed
6.1-upstream-stable: needed
5.10-upstream-stable: needed
4.19-upstream-stable: needed
4.9-upstream-stable: ignored "EOL"
3.16-upstream-stable: ignored "EOL"
sid: needed
6.1-bookworm-security: needed
5.10-bullseye-security: needed
4.19-buster-security: needed
4.9-stretch-security: ignored "f2fs is not supportable"
3.16-jessie-security: ignored "EOL"