Re: [syzbot] KASAN: use-after-free Read in r871xu_dev_remove

[Pavel Skripkin]

 On Mon, 12 Jul 2021 20:14:24 -0700
syzbot <syzbot+5872a520e0ce0a7c7230@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    92510a7f Add linux-next specific files for 20210709
> git tree:       linux-next
> console output:
> https://syzkaller.appspot.com/x/log.txt?x=16c50180300000 kernel
> config:  https://syzkaller.appspot.com/x/.config?x=505de2716f052686
> dashboard link:
> https://syzkaller.appspot.com/bug?extid=5872a520e0ce0a7c7230 syz
> repro:
> https://syzkaller.appspot.com/x/repro.syz?x=1639a73c300000 C
> reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15fcd5e4300000
> 
> IMPORTANT: if you fix the issue, please add the following tag to the
> commit: Reported-by:
> syzbot+5872a520e0ce0a7c7230@xxxxxxxxxxxxxxxxxxxxxxxxx
> 

Hmm, bisection is wrong this time. It should be
e02a3b945816 ("staging: rtl8712: fix memory leak in rtl871x_load_fw_cb")

#syz test:
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master


I guess, this should work


With regards,
Pavel Skripkin