From: Edward Adam Davis <eadavis@sina.com>
To: syzbot+a2626a25eb2595e3ec3c@syzkaller.appspotmail.com
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [dm?] KASAN: null-ptr-deref Read in dm_kcopyd_client_destroy
Date: Mon, 26 Oct 2026 09:59:42 +0800 [thread overview]
Message-ID: <20261026015942.167369-1-eadavis@sina.com> (raw)
In-Reply-To: <6addec28.412b1182.196980.00aa.GAE@google.com>
From: Edward Aadm Davis <eadavis@sina.com>
#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 4169c9c90532
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 1a5072425c4a..b562bf59124c 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -2544,6 +2544,7 @@ static int cache_create(struct cache_args *ca, struct cache **result)
if (IS_ERR(cache->copier)) {
*error = "could not create kcopyd client";
r = PTR_ERR(cache->copier);
+ cache->copier = NULL;
goto bad;
}
next prev parent reply other threads:[~2026-10-26 1:59 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-25 11:46 syzbot
2026-10-26 1:59 ` Edward Adam Davis [this message]
2026-10-26 7:05 ` syzbot
2026-10-26 4:21 ` [PATCH] dm: reject kcopyd client destory if it setup failed Edward Adam Davis
2026-10-26 7:23 ` [PATCH] dm: reject kcopyd client destroy " Nehuen Lian Bova
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