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| author | Zhao Mengmeng <zhaomengmeng@kylinos.cn> | 2024-09-04 09:07:58 +0800 |
|---|---|---|
| committer | Dave Kleikamp <dave.kleikamp@oracle.com> | 2024-09-04 10:28:08 -0500 |
| commit | 2b59ffad47db1c46af25ccad157bb3b25147c35c (patch) | |
| tree | a6c7eafdc1af6e6df05d9aa938bab996cfb9b7fc /lib/crypto/mpi/ec.c | |
| parent | d64ff0d2306713ff084d4b09f84ed1a8c75ecc32 (diff) | |
jfs: Fix uninit-value access of new_ea in ea_buffer
syzbot reports that lzo1x_1_do_compress is using uninit-value:
=====================================================
BUG: KMSAN: uninit-value in lzo1x_1_do_compress+0x19f9/0x2510 lib/lzo/lzo1x_compress.c:178
...
Uninit was stored to memory at:
ea_put fs/jfs/xattr.c:639 [inline]
...
Local variable ea_buf created at:
__jfs_setxattr+0x5d/0x1ae0 fs/jfs/xattr.c:662
__jfs_xattr_set+0xe6/0x1f0 fs/jfs/xattr.c:934
=====================================================
The reason is ea_buf->new_ea is not initialized properly.
Fix this by using memset to empty its content at the beginning
in ea_get().
Reported-by: syzbot+02341e0daa42a15ce130@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=02341e0daa42a15ce130
Signed-off-by: Zhao Mengmeng <zhaomengmeng@kylinos.cn>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Diffstat (limited to 'lib/crypto/mpi/ec.c')
0 files changed, 0 insertions, 0 deletions