[ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Started OpenBSD Secure Shell server. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.53' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 60.921173][ T6830] ------------[ cut here ]------------ [ 60.926732][ T6830] WARNING: CPU: 0 PID: 6830 at lib/idr.c:269 idr_get_next+0x11f/0x150 [ 60.935212][ T6830] Modules linked in: [ 60.939193][ T6830] CPU: 0 PID: 6830 Comm: syz-executor254 Not tainted 5.9.0-rc2-next-20200828-syzkaller #0 [ 60.949296][ T6830] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.959435][ T6830] RIP: 0010:idr_get_next+0x11f/0x150 [ 60.964961][ T6830] Code: 44 05 00 00 00 00 00 48 8b 44 24 58 65 48 2b 04 25 28 00 00 00 75 31 48 83 c4 60 4c 89 e0 5b 5d 41 5c 41 5d c3 e8 21 6d c0 fd <0f> 0b 45 31 e4 eb be 48 89 df e8 62 e8 00 fe e9 50 ff ff ff 48 89 [ 60.984621][ T6830] RSP: 0018:ffffc900010f7c88 EFLAGS: 00010293 [ 60.990730][ T6830] RAX: 0000000000000000 RBX: ffffc900010f7d40 RCX: ffffffff83b40efd [ 60.998742][ T6830] RDX: ffff8880a78f4040 RSI: ffffffff83b40f6f RDI: 0000000000000007 [ 61.006711][ T6830] RBP: 1ffff9200021ef91 R08: 0000000000000000 R09: ffffffff8ab3cb87 [ 61.014736][ T6830] R10: 000000007fffffff R11: 0000000000000000 R12: ffff8880a9202040 [ 61.022759][ T6830] R13: 00000000fffffffc R14: 00000000fffffffe R15: ffffc900010f7d40 [ 61.030907][ T6830] FS: 0000000000fc8880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 61.039878][ T6830] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.046500][ T6830] CR2: 0000000020000140 CR3: 000000009e214000 CR4: 00000000001506f0 [ 61.054530][ T6830] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.062546][ T6830] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.070548][ T6830] Call Trace: [ 61.073843][ T6830] ? idr_get_next_ul+0x2a0/0x2a0 [ 61.078820][ T6830] __qrtr_bind.isra.0+0x3e4/0x650 [ 61.083839][ T6830] ? qrtr_release+0x330/0x330 [ 61.088562][ T6830] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 61.094543][ T6830] ? lock_sock_nested+0x94/0x110 [ 61.099540][ T6830] ? trace_hardirqs_on+0x5f/0x220 [ 61.104561][ T6830] qrtr_bind+0x1c1/0x250 [ 61.108984][ T6830] ? security_socket_bind+0x83/0xb0 [ 61.114197][ T6830] __sys_bind+0x1e9/0x250 [ 61.118571][ T6830] ? __ia32_sys_socketpair+0xf0/0xf0 [ 61.123851][ T6830] ? _down_write_nest_lock+0x150/0x150 [ 61.129349][ T6830] ? vmacache_update+0xce/0x140 [ 61.134206][ T6830] ? lock_is_held_type+0xbb/0xf0 [ 61.139196][ T6830] ? syscall_enter_from_user_mode+0x20/0x290 [ 61.145179][ T6830] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 61.151198][ T6830] ? trace_hardirqs_on+0x5f/0x220 [ 61.156233][ T6830] __x64_sys_bind+0x6f/0xb0 [ 61.160950][ T6830] do_syscall_64+0x2d/0x70 [ 61.165367][ T6830] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.171328][ T6830] RIP: 0033:0x441239 [ 61.175227][ T6830] Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 61.194899][ T6830] RSP: 002b:00007fffd5cb9578 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 61.203379][ T6830] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441239 [ 61.211415][ T6830] RDX: 000000000000000c RSI: 0000000020000140 RDI: 0000000000000003 [ 61.219448][ T6830] RBP: 000000000000edfd R08: 00000000004002c8 R09: 00000000004002c8 [ 61.227470][ T6830] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000401fe0 [ 61.235487][ T6830] R13: 0000000000402070 R14: 0000000000000000 R15: 0000000000000000 [ 61.243543][ T6830] Kernel panic - not syncing: panic_on_warn set ... [ 61.250124][ T6830] CPU: 0 PID: 6830 Comm: syz-executor254 Not tainted 5.9.0-rc2-next-20200828-syzkaller #0 [ 61.259987][ T6830] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.270022][ T6830] Call Trace: [ 61.273300][ T6830] dump_stack+0x18f/0x20d [ 61.277616][ T6830] panic+0x2e3/0x75c [ 61.281496][ T6830] ? __warn_printk+0xf3/0xf3 [ 61.286075][ T6830] ? __warn.cold+0x1d/0xc1 [ 61.290505][ T6830] ? __warn.cold+0x14/0xc1 [ 61.294905][ T6830] ? idr_get_next+0x11f/0x150 [ 61.299568][ T6830] __warn.cold+0x38/0xc1 [ 61.303797][ T6830] ? idr_get_next+0x11f/0x150 [ 61.308457][ T6830] report_bug+0x1bd/0x210 [ 61.312791][ T6830] handle_bug+0x38/0x90 [ 61.316927][ T6830] exc_invalid_op+0x14/0x40 [ 61.321412][ T6830] asm_exc_invalid_op+0x12/0x20 [ 61.326277][ T6830] RIP: 0010:idr_get_next+0x11f/0x150 [ 61.331554][ T6830] Code: 44 05 00 00 00 00 00 48 8b 44 24 58 65 48 2b 04 25 28 00 00 00 75 31 48 83 c4 60 4c 89 e0 5b 5d 41 5c 41 5d c3 e8 21 6d c0 fd <0f> 0b 45 31 e4 eb be 48 89 df e8 62 e8 00 fe e9 50 ff ff ff 48 89 [ 61.351139][ T6830] RSP: 0018:ffffc900010f7c88 EFLAGS: 00010293 [ 61.357190][ T6830] RAX: 0000000000000000 RBX: ffffc900010f7d40 RCX: ffffffff83b40efd [ 61.365144][ T6830] RDX: ffff8880a78f4040 RSI: ffffffff83b40f6f RDI: 0000000000000007 [ 61.373102][ T6830] RBP: 1ffff9200021ef91 R08: 0000000000000000 R09: ffffffff8ab3cb87 [ 61.381090][ T6830] R10: 000000007fffffff R11: 0000000000000000 R12: ffff8880a9202040 [ 61.389045][ T6830] R13: 00000000fffffffc R14: 00000000fffffffe R15: ffffc900010f7d40 [ 61.397036][ T6830] ? idr_get_next+0xad/0x150 [ 61.401614][ T6830] ? idr_get_next+0x11f/0x150 [ 61.406373][ T6830] ? idr_get_next+0x11f/0x150 [ 61.411033][ T6830] ? idr_get_next_ul+0x2a0/0x2a0 [ 61.415960][ T6830] __qrtr_bind.isra.0+0x3e4/0x650 [ 61.420967][ T6830] ? qrtr_release+0x330/0x330 [ 61.425631][ T6830] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 61.431602][ T6830] ? lock_sock_nested+0x94/0x110 [ 61.436521][ T6830] ? trace_hardirqs_on+0x5f/0x220 [ 61.441540][ T6830] qrtr_bind+0x1c1/0x250 [ 61.445775][ T6830] ? security_socket_bind+0x83/0xb0 [ 61.450957][ T6830] __sys_bind+0x1e9/0x250 [ 61.455271][ T6830] ? __ia32_sys_socketpair+0xf0/0xf0 [ 61.460540][ T6830] ? _down_write_nest_lock+0x150/0x150 [ 61.465983][ T6830] ? vmacache_update+0xce/0x140 [ 61.470817][ T6830] ? lock_is_held_type+0xbb/0xf0 [ 61.475738][ T6830] ? syscall_enter_from_user_mode+0x20/0x290 [ 61.481701][ T6830] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 61.487663][ T6830] ? trace_hardirqs_on+0x5f/0x220 [ 61.492673][ T6830] __x64_sys_bind+0x6f/0xb0 [ 61.497185][ T6830] do_syscall_64+0x2d/0x70 [ 61.501584][ T6830] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.507458][ T6830] RIP: 0033:0x441239 [ 61.511340][ T6830] Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 61.530927][ T6830] RSP: 002b:00007fffd5cb9578 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 61.539319][ T6830] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441239 [ 61.547270][ T6830] RDX: 000000000000000c RSI: 0000000020000140 RDI: 0000000000000003 [ 61.555225][ T6830] RBP: 000000000000edfd R08: 00000000004002c8 R09: 00000000004002c8 [ 61.563179][ T6830] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000401fe0 [ 61.571140][ T6830] R13: 0000000000402070 R14: 0000000000000000 R15: 0000000000000000 [ 61.580615][ T6830] Kernel Offset: disabled [ 61.584990][ T6830] Rebooting in 86400 seconds..