linux-kernel - Re: [syzbot] [media?] [usb?] WARNING in usb_free

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Message-Id: <20240602032010.3726-1-hdanton@sina.com>
Date: Sun,  2 Jun 2024 11:20:10 +0800
From: Hillf Danton <hdanton@...a.com>
To: syzbot <syzbot+b466336413a1fba398a5@...kaller.appspotmail.com>
Cc: linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [media?] [usb?] WARNING in usb_free_urb

On Sat, 01 Jun 2024 18:44:29 -0700
> syzbot found the following issue on:
> 
> HEAD commit:    e0cce98fe279 Merge tag 'tpmdd-next-6.10-rc2' of git://git...
> git tree:       upstream
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=157ada62980000

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git  master

--- x/drivers/media/usb/siano/smsusb.c
+++ y/drivers/media/usb/siano/smsusb.c
@@ -168,7 +168,6 @@ static int smsusb_submit_urb(struct smsu
 		smsusb_onresponse,
 		surb
 	);
-	surb->urb->transfer_flags |= URB_FREE_BUFFER;
 
 	return usb_submit_urb(surb->urb, GFP_ATOMIC);
 }
--