From: Randy Dunlap <rdunlap@infradead.org>
To: syzbot <syzbot+1c6756baf4b16b94d2a6@syzkaller.appspotmail.com>,
deepa.kernel@gmail.com, jack@suse.cz, jeffm@suse.com,
jlayton@kernel.org, linux-kernel@vger.kernel.org,
reiserfs-devel@vger.kernel.org, syzkaller-bugs@googlegroups.com,
viro@zeniv.linux.org.uk
Subject: [PATCH] Re: memory leak in reiserfs_fill_super
Date: Sat, 14 Dec 2019 15:12:57 -0800 [thread overview]
Message-ID: <dbad2a8f-5a58-ecb5-eec7-1d6ef90abaed@infradead.org> (raw)
In-Reply-To: <000000000000ab22f20599779d25@google.com>
From: Randy Dunlap <rdunlap@infradead.org>
fill_super() conditionally allocates a jdev string if "jdev=x"
is specified. put_super() should free that memory.
Reported-by: syzbot+1c6756baf4b16b94d2a6@syzkaller.appspotmail.com
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
---
fs/reiserfs/super.c | 1 +
1 file changed, 1 insertion(+)
--- linux-next-20191213.orig/fs/reiserfs/super.c
+++ linux-next-20191213/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;
}
next prev parent reply other threads:[~2019-12-14 23:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-12 1:25 memory leak in reiserfs_fill_super syzbot
2019-12-14 23:12 ` Randy Dunlap [this message]
2019-12-16 11:57 ` [PATCH] " Jan Kara
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