From: syzbot <syzbot+7ea9413ea6749baf5574@syzkaller.appspotmail.com>
To: linux-kernel@vger.kernel.org
Subject: Re: [syzbot] [PATCH net] nfc: nci: Fix uninit-value in nci_dev_up
Date: Tue, 12 Mar 2024 07:31:02 -0700 [thread overview]
Message-ID: <000000000000f0437206137781f0@google.com> (raw)
In-Reply-To: <000000000000169132060fc66db3@google.com>
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Subject: [PATCH net] nfc: nci: Fix uninit-value in nci_dev_up
Author: ryasuoka@redhat.com
#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
diff --git a/net/nfc/nci/ntf.c b/net/nfc/nci/ntf.c
index 994a0a1efb58..56624387e253 100644
--- a/net/nfc/nci/ntf.c
+++ b/net/nfc/nci/ntf.c
@@ -765,6 +765,9 @@ void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb)
nci_opcode_oid(ntf_opcode),
nci_plen(skb->data));
+ if (!nci_plen(skb->data))
+ goto end;
+
/* strip the nci control header */
skb_pull(skb, NCI_CTRL_HDR_SIZE);
next prev parent reply other threads:[~2024-03-12 14:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-25 14:59 [syzbot] [net?] [nfc?] KMSAN: uninit-value in nci_dev_up syzbot
2024-01-25 16:23 ` syzbot
2024-03-10 6:12 ` [syzbot] [PATCH net] nfc: nci: Fix " syzbot
2024-03-12 13:41 ` [syzbot] [PATCH] " syzbot
2024-03-12 14:31 ` syzbot [this message]
2024-03-18 15:56 ` [syzbot] [PATCH net v2] " syzbot
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