e2fsprogs: backport upstream patch

e2fsprogs: backport upstream patch

Fixes a bug wherein a use after free could potentially be used to run
malicious code if a user can be tricked into running e2fsck on a
maliciously crafted file system.

Also see:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=948517

(From OE-Core rev: 23c1b157362609bd8d85c7d35e6c7f0f60c32c88)

Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>