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nilfs2: initialize "struct nilfs_binfo_dat"->bi_pad field

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nilfs_btree_assign_p() and nilfs_direct_assign_p() are not initializing
"struct nilfs_binfo_dat"->bi_pad field, causing uninit-value reports when
being passed to CRC function.

Link: https://lkml.kernel.org/r/20230326152146.15872-1-konishi.ryusuke@gmail.com
Reported-by: syzbot <syzbot+048585f3f4227bb2b49b@syzkaller.appspotmail.com>
  Link: https://syzkaller.appspot.com/bug?extid=048585f3f4227bb2b49b
Reported-by: Dipanjan Das <mail.dipanjan.das@gmail.com>
  Link: https://lkml.kernel.org/r/CANX2M5bVbzRi6zH3PTcNE_31TzerstOXUa9Bay4E6y6dX23_pg@mail.gmail.com
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Tetsuo Handa 2023-03-27 00:21:46 +09:00 committed by Andrew Morton
parent 6be49d100c
commit 7397031622
2 changed files with 2 additions and 0 deletions
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1
fs/nilfs2/btree.c
View File

@ -2219,6 +2219,7 @@ static int nilfs_btree_assign_p(struct nilfs_bmap *btree,
/* on-disk format */
binfo->bi_dat.bi_blkoff = cpu_to_le64(key);
binfo->bi_dat.bi_level = level;
memset(binfo->bi_dat.bi_pad, 0, sizeof(binfo->bi_dat.bi_pad));
return 0;
}

1
fs/nilfs2/direct.c
View File

@ -314,6 +314,7 @@ static int nilfs_direct_assign_p(struct nilfs_bmap *direct,
binfo->bi_dat.bi_blkoff = cpu_to_le64(key);
binfo->bi_dat.bi_level = 0;
memset(binfo->bi_dat.bi_pad, 0, sizeof(binfo->bi_dat.bi_pad));
return 0;
}