tree bff3290114ffaadc58ef8ace60b014a5c1917e30
parent 748924621fdd0e70a191091915fc9724d42e4796
author Andreas Dilger <adilger@dilger.ca> 1522348614 -0600
committer Theodore Ts'o <tytso@mit.edu> 1522378879 -0400

filefrag: avoid temporary buffer overflow

If an unknown flag is present in a FIEMAP extent, it is printed as a
hex value into a temporary buffer before adding it to the flags.  If
that unknown flag is over 0xfff then it will overflow the temporary
buffer.

Reported-by: Sarah Liu <wei3.liu@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-10335
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>