tree 6776d3593af1856c8692f33a2733b8cd679944e8
parent bc6771eb3ac7d8792b96e9aba34e709e2302ff26
author Jaegeuk Kim <jaegeuk@kernel.org> 1545882847 -0800
committer Jaegeuk Kim <jaegeuk@kernel.org> 1546473385 -0800

f2fs: sanity check of xattr entry size

There is a security report where f2fs_getxattr() has a hole to expose wrong
memory region when the image is malformed like this.

f2fs_getxattr: entry->e_name_len: 4, size: 12288, buffer_size: 16384, len: 4

Cc: <stable@vger.kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>