Messages in this thread Patch in this message |  | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.5 14/23] reiserfs: Fix memory leak of journal device string | Date | Mon, 3 Feb 2020 16:20:34 +0000 |
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From: Jan Kara <jack@suse.cz>
commit 5474ca7da6f34fa95e82edc747d5faa19cbdfb5c upstream.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/reiserfs/super.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -629,6 +629,7 @@ static void reiserfs_put_super(struct su 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;
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