On Mon, May 4, 2020 at 12:08 PM Josh Poimboeuf <jpoim...@redhat.com> wrote: > > On Sat, May 02, 2020 at 11:36:11PM -0700, syzbot wrote: > > Hello, > > > > syzbot found the following crash on: > > > > HEAD commit: 8999dc89 net/x25: Fix null-ptr-deref in x25_disconnect > > git tree: net > > console output: https://syzkaller.appspot.com/x/log.txt?x=16004440100000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=b7a70e992f2f9b68 > > dashboard link: https://syzkaller.appspot.com/bug?extid=e73ceacfd8560cc8a3ca > > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > > > Unfortunately, I don't have any reproducer for this crash yet. > > > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > > Reported-by: syzbot+e73ceacfd8560cc8a...@syzkaller.appspotmail.com > > Infinite loop in network code.
It is not a loop, it is an unbound recursion where netdev events trigger between bond master and slave back and forth. Let me see how this can be fixed properly. Thanks!