[syzbot] BUG: workqueue function usb_giveback_urb_bh changed kcov_mode from ADDR to NUM

[syzbot] BUG: workqueue function usb_giveback_urb_bh changed kcov_mode from ADDR to NUM

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit:    343f51842f4e Add linux-next specific files for 20260309
git tree:       linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=13378d52580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=9c879cdb484d8d77
dashboard link: https://syzkaller.appspot.com/bug?extid=30c7fba804af8a99039e
compiler:       Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/b7aa06014b89/disk-343f5184.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/7f0db0d3a249/vmlinux-343f5184.xz
kernel image: https://storage.googleapis.com/syzbot-assets/fab52994a344/bzImage-343f5184.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+30c7fba804af8a99039e@syzkaller.appspotmail.com

BUG: workqueue function usb_giveback_urb_bh changed kcov_mode from 1073741824 to 0
BUG: workqueue function usb_giveback_urb_bh changed kcov_mode from 1073741824 to 0


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Forwarded: Re: [syzbot] BUG: workqueue function usb_giveback_urb_bh changed kcov_mode from ADDR to NUM

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Subject: Re: [syzbot] BUG: workqueue function usb_giveback_urb_bh changed kcov_mode from ADDR to NUM
Author: penguin-kernel@i-love.sakura.ne.jp

#syz invalid