tree 627a37e7d5fbd931f7b0766b7939c76c8bbc3ece
parent bc028345acc44a4fe94fd0572ab0552bdfb7f810
author Tom Rini <trini@konsulko.com> 1503282615 -0400
committer Tom Rini <trini@konsulko.com> 1503773773 -0400

fs: ext4: Fix journal overrun issue reported by Coverity

While &p_jdb[fs->blksz] is a valid expression (it points *one* char
sized element past the end of the array, e.g. &p_jdb[fs->blksz + 1] is
invalid (according to the C standard (C99/C11)).

Changing this to tag = (struct ext3_journal_block_tag *)(p_jdb + ofs);

Cc: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Suggested-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Reported-by: Coverity (CID: 165117, 165110)
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>