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Date: Thu,  7 Mar 2024 18:48:57 +0800
From: Hillf Danton <hdanton@...a.com>
To: syzbot <syzbot+96127c74434e19e4609d@...kaller.appspotmail.com>
Cc: linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [usb] INFO: rcu detected stall in newfstatat (3)

On Thu, 07 Mar 2024 01:22:01 -0800
> syzbot has bisected this issue to:
> 
> commit c2368b19807affd7621f7c4638cd2e17fec13021
> Author: Jiri Pirko <jiri@...dia.com>
> Date:   Fri Jul 29 07:10:35 2022 +0000
> 
>     net: devlink: introduce "unregistering" mark and use it during devlinks iteration
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14dc6736180000
> start commit:   29cd507cbec2 Merge tag 'integrity-v6.8-fix' of git://git.k..
> git tree:       upstream
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15f691a6180000

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

--- x/drivers/media/rc/imon.c
+++ y/drivers/media/rc/imon.c
@@ -1758,6 +1758,7 @@ static void usb_rx_callback_intf0(struct
 
 	switch (urb->status) {
 	case -ENOENT:		/* usbcore unlink successful! */
+	case -EPROTO:
 		return;
 
 	case -ESHUTDOWN:	/* transport endpoint was shut down */
--

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