Re: BUG: corrupted list in _cma_attach_to_dev

[Jason Gunthorpe]

On Sun, Mar 01, 2020 at 11:13:15AM -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=16a8fa81e00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=9833e26bab355358
> dashboard link: https://syzkaller.appspot.com/bug?extid=06b50ee4a9bd73e8b89f
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14e804f9e00000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15d6fd29e00000

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