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From: syzbot <syzbot+d7b4dc6cd50410152534@syzkaller.appspotmail.com>
To: linux-kernel@vger.kernel.org
Subject: Re: [syzbot] [PATCH net] nfc: nci: Fix uninit-value in nci_rx_work
Date: Fri, 05 Apr 2024 08:50:51 -0700	[thread overview]
Message-ID: <0000000000009cd77c06155b6b78@google.com> (raw)
In-Reply-To: <00000000000003b4af060de27f6b@google.com>

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Subject: [PATCH net] nfc: nci: Fix uninit-value in nci_rx_work
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/core.c b/net/nfc/nci/core.c
index 0d26c8ec9993..b7a020484131 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -1516,7 +1516,7 @@ static void nci_rx_work(struct work_struct *work)
 		nfc_send_to_raw_sock(ndev->nfc_dev, skb,
 				     RAW_PAYLOAD_NCI, NFC_DIRECTION_RX);
 
-		if (!nci_plen(skb->data)) {
+		if (!skb->len || !nci_plen(skb->data)) {
 			kfree_skb(skb);
 			break;
 		}


  parent reply	other threads:[~2024-04-05 15:50 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-01 13:38 [syzbot] [net?] [nfc?] KMSAN: uninit-value in nci_rx_work syzbot
2024-04-05  7:11 ` [syzbot] [PATCH net] nfc: nci: Fix " syzbot
2024-04-05 15:28 ` syzbot
2024-04-05 15:46 ` syzbot
2024-04-05 15:50 ` syzbot [this message]
2024-04-25  2:55 ` [syzbot] [PATCH net v2] " syzbot
2024-04-25  2:55 ` syzbot
2024-05-01 18:00 ` [syzbot] [PATCH net v3] " syzbot
2024-05-02  5:26 ` syzbot
2024-05-08 15:08 ` [syzbot] [PATCH net v4] " syzbot
2024-05-08 15:16 ` syzbot
2024-05-09  0:49 ` syzbot
2024-05-09  0:51 ` syzbot
2024-05-09  4:07 ` syzbot
2024-05-19  5:02 ` [syzbot] [PATCH net v5] " syzbot
2024-05-19  6:42 ` syzbot
2024-05-19  8:39 ` syzbot

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