From: Fedor Pchelkin <pchelkin@ispras.ru>
To: syzbot+df61b36319e045c00a08@syzkaller.appspotmail.com
Cc: syzkaller-bugs@googlegroups.com, linux-kernel@vger.kernel.org
Subject: Re: [syzbot] [wireless?] KMSAN: uninit-value in ath9k_hw_init
Date: Mon, 13 Mar 2023 14:02:56 +0300 [thread overview]
Message-ID: <20230313110256.driiufx5edha7xhh@fpc> (raw)
#syz test: https://github.com/google/kmsan.git master
--- a/drivers/net/wireless/ath/ath9k/wmi.c
+++ b/drivers/net/wireless/ath/ath9k/wmi.c
@@ -221,6 +221,9 @@ static void ath9k_wmi_ctrl_rx(void *priv, struct sk_buff *skb,
if (unlikely(wmi->stopped))
goto free_skb;
+ if (unlikely(skb->len < sizeof(struct wmi_cmd_hdr)))
+ goto free_skb;
+
hdr = (struct wmi_cmd_hdr *) skb->data;
cmd_id = be16_to_cpu(hdr->command_id);
@@ -308,8 +311,11 @@ int ath9k_wmi_cmd(struct wmi *wmi, enum wmi_cmd_id cmd_id,
unsigned long time_left;
int ret = 0;
- if (ah->ah_flags & AH_UNPLUGGED)
- return 0;
+ if (ah->ah_flags & AH_UNPLUGGED) {
+ ath_dbg(common, WMI, "Device unplugged for WMI command: %s\n",
+ wmi_cmd_to_name(cmd_id));
+ return -ENODEV;
+ }
skb = alloc_skb(headroom + cmd_len, GFP_ATOMIC);
if (!skb)
--
next reply other threads:[~2023-03-13 11:03 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-13 11:02 Fedor Pchelkin [this message]
2023-03-13 11:22 ` syzbot
-- strict thread matches above, loose matches on Subject: below --
2023-03-15 19:35 Fedor Pchelkin
2023-03-15 19:45 ` syzbot
2023-03-15 13:47 Fedor Pchelkin
2023-03-15 14:12 ` syzbot
2023-03-13 20:47 Fedor Pchelkin
2023-03-13 21:05 ` syzbot
2023-03-13 17:41 Fedor Pchelkin
2023-03-13 18:04 ` syzbot
2023-03-13 17:05 Fedor Pchelkin
2023-03-13 17:35 ` syzbot
2023-03-13 14:36 Fedor Pchelkin
2023-03-13 15:46 ` syzbot
2023-03-12 20:21 Fedor Pchelkin
2023-03-12 20:41 ` [syzbot] [wireless?] KMSAN: uninit-value in ath9k_hw_init syzbot
2023-03-06 7:22 syzbot
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