Description: Buffer overrun in f2fs_truncate_inline_inode() when umounting an f2fs image
References:
 https://bugzilla.kernel.org/show_bug.cgi?id=200421
 https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=f2fs-dev&id=a80a2ff8e0a1265a4e92f4b8ae7caacc83a19503
Notes:
 bwh> Introduced in 4.14-rc1 by commit 7a2af766af15 "f2fs: enhance on-disk
 bwh> inode structure scalability"
Bugs:
upstream: released (4.19-rc1) [18dd6470c2d14d10f5a2dd926925dc80dbd3abfd]
4.19-upstream-stable: N/A "Fixed before branch point"
4.9-upstream-stable: N/A "Vulnerable code not present"
3.16-upstream-stable: N/A "Vulnerable code not present"
sid: released (4.19.9-1)
4.9-stretch-security: N/A "Vulnerable code not present"
3.16-jessie-security: N/A "Vulnerable code not present"