Re: BUG: corrupted list in cma_listen_on_dev

From: Jason Gunthorpe
Date: Wed Mar 04 2020 - 08:56:53 EST


On Tue, Mar 03, 2020 at 10:45:12PM -0800, syzbot wrote:
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit: 63623fd4 Merge tag 'for-linus' of git://git.kernel.org/pub..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=11123e65e00000
> kernel config: https://syzkaller.appspot.com/x/.config?x=5d2e033af114153f
> dashboard link: https://syzkaller.appspot.com/bug?extid=2b10b240fbbed30f10fb
> compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81)
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10d3b329e00000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16291291e00000
>
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+2b10b240fbbed30f10fb@xxxxxxxxxxxxxxxxxxxxxxxxx

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