Messages in this thread | | | Subject | Re: BUG: sleeping function called from invalid context in lock_sock_nested (2) | From | Guenter Roeck <> | Date | Sat, 22 Feb 2020 07:20:17 -0800 |
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On 2/22/20 7:08 AM, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: 0a44cac8 Merge tag 'dma-mapping-5.6' of git://git.infradea.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=152eba29e00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=a61f2164c515c07f > dashboard link: https://syzkaller.appspot.com/bug?extid=a5df189917e79d5e59c9 > compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=117a0931e00000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17d8c109e00000 > > The bug was bisected to: > > commit 5ac6badc5aa057ceb1d50c93326a81db6e89ad2f > Author: Daniel Mack <daniel@zonque.org> > Date: Thu Jul 11 12:45:03 2019 +0000 > > device-tree: bindinds: add NXP PCT2075 as compatible device to LM75 >
Guess syzbot's bisect mechanism needs a bit of work.
Guenter
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15924629e00000 > final crash: https://syzkaller.appspot.com/x/report.txt?x=17924629e00000 > console output: https://syzkaller.appspot.com/x/log.txt?x=13924629e00000 > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+a5df189917e79d5e59c9@syzkaller.appspotmail.com > Fixes: 5ac6badc5aa0 ("device-tree: bindinds: add NXP PCT2075 as compatible device to LM75") > > BUG: sleeping function called from invalid context at net/core/sock.c:2935 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 2687, name: kworker/1:3 > INFO: lockdep is turned off. > Preemption disabled at: > [<ffffffff867b39c7>] sock_hash_free+0xd7/0x460 net/core/sock_map.c:869 > CPU: 1 PID: 2687 Comm: kworker/1:3 Not tainted 5.6.0-rc2-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Workqueue: events bpf_map_free_deferred > Call Trace: > __dump_stack lib/dump_stack.c:77 [inline] > dump_stack+0x1fb/0x318 lib/dump_stack.c:118 > ___might_sleep+0x449/0x5e0 kernel/sched/core.c:6798 > __might_sleep+0x8f/0x100 kernel/sched/core.c:6751 > lock_sock_nested+0x36/0x120 net/core/sock.c:2935 > lock_sock include/net/sock.h:1516 [inline] > sock_hash_free+0x200/0x460 net/core/sock_map.c:872 > bpf_map_free_deferred+0xb2/0x110 kernel/bpf/syscall.c:474 > process_one_work+0x7f5/0x10f0 kernel/workqueue.c:2264 > worker_thread+0xbbc/0x1630 kernel/workqueue.c:2410 > kthread+0x332/0x350 kernel/kthread.c:255 > ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 > > > --- > This bug is generated by a bot. It may contain errors. > See https://goo.gl/tpsmEJ for more information about syzbot. > syzbot engineers can be reached at syzkaller@googlegroups.com. > > syzbot will keep track of this bug report. See: > https://goo.gl/tpsmEJ#status for how to communicate with syzbot. > For information about bisection process see: https://goo.gl/tpsmEJ#bisection > syzbot can test patches for this bug, for details see: > https://goo.gl/tpsmEJ#testing-patches >
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