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| author | Jan Kara <jack@suse.cz> | 2019-12-12 11:30:03 +0100 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2019-12-16 12:59:32 +0100 |
| commit | 5474ca7da6f34fa95e82edc747d5faa19cbdfb5c (patch) | |
| tree | 011451e3cc0db5960a1a5d8f2093b3d3ea5475c4 | |
| parent | 34e92542da964304f41f97deee6e34085ad8106b (diff) | |
| download | linux-5474ca7da6f34fa95e82edc747d5faa19cbdfb5c.tar.bz2 | |
reiserfs: Fix memory leak of journal device string
When a filesystem is mounted with jdev mount option, we store the
journal device name in an allocated string in superblock. However we
fail to ever free that string. Fix it.
Reported-by: syzbot+1c6756baf4b16b94d2a6@syzkaller.appspotmail.com
Fixes: c3aa077648e1 ("reiserfs: Properly display mount options in /proc/mounts")
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
| -rw-r--r-- | fs/reiserfs/super.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index 3244037b1286..d127af64283e 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -629,6 +629,7 @@ static void reiserfs_put_super(struct super_block *s) reiserfs_write_unlock(s); mutex_destroy(&REISERFS_SB(s)->lock); destroy_workqueue(REISERFS_SB(s)->commit_wq); + kfree(REISERFS_SB(s)->s_jdev); kfree(s->s_fs_info); s->s_fs_info = NULL; } @@ -2240,6 +2241,7 @@ error_unlocked: kfree(qf_names[j]); } #endif + kfree(sbi->s_jdev); kfree(sbi); s->s_fs_info = NULL; |