Re: [syzbot] KASAN: use-after-free Read in cdc_ncm_tx_fixup

syzbot
2022-06-09T12:23:32Z

syzbot suspects this issue was fixed by commit:

commit d1408f6b4dd78fb1b9e26bcf64477984e5f85409
Author: Lukas Wunner <lukas@wunner.de>
Date: Thu May 12 08:42:01 2022 +0000

usbnet: Run unregister_netdev() before unbind() again

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=122a4b57f00000
start commit: 330f4c53d3c2 ARM: fix build error when BPF_SYSCALL is disa..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=aba0ab2928a512c2
dashboard link: https://syzkaller.appspot.com/bug?extid=5ec3d1378e31c88d87f4
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=135ca155700000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: usbnet: Run unregister_netdev() before unbind() again

For information about bisection process see: https://goo.gl/tpsmEJ#bisection