syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: 93ad0f96 net: wan: lapbether.c: Use built-in RCU list chec.. > git tree: net > console output: https://syzkaller.appspot.com/x/log.txt?x=132caa76e00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=7e89bd00623fe71e > dashboard link: https://syzkaller.appspot.com/bug?extid=d73682fcf7fee6982fe3 > 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+d73682fcf7fee6982fe3@xxxxxxxxxxxxxxxxxxxxxxxxx > > ------------[ cut here ]------------ > WARNING: CPU: 1 PID: 11793 at include/net/sock.h:1578 sock_owned_by_me > include/net/sock.h:1578 [inline] > WARNING: CPU: 1 PID: 11793 at include/net/sock.h:1578 > sk_psock_drop+0x5fa/0x7f0 net/core/skmsg.c:597 > Kernel panic - not syncing: panic_on_warn set ... > CPU: 1 PID: 11793 Comm: syz-executor.3 Not tainted 5.5.0-rc5-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 I recently added this sock_owned_by_me so I'll take a look. Thanks for the report. Seems we have a case where its not held.
