[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.83' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 55.709043][ T6808] ------------[ cut here ]------------ [ 55.714826][ T6808] WARNING: CPU: 1 PID: 6808 at lib/idr.c:84 idr_alloc+0x11c/0x130 [ 55.722971][ T6808] Kernel panic - not syncing: panic_on_warn set ... [ 55.729562][ T6808] CPU: 1 PID: 6808 Comm: syz-executor656 Not tainted 5.8.0-rc5-next-20200716-syzkaller #0 [ 55.739421][ T6808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.749494][ T6808] Call Trace: [ 55.752853][ T6808] dump_stack+0x18f/0x20d [ 55.757174][ T6808] panic+0x2e3/0x75c [ 55.761065][ T6808] ? __warn_printk+0xf3/0xf3 [ 55.765650][ T6808] ? printk+0xba/0xed [ 55.769608][ T6808] ? log_store.cold+0x16/0x16 [ 55.774277][ T6808] ? __warn.cold+0x5/0x45 [ 55.778581][ T6808] ? __warn+0xd6/0x1f2 [ 55.782643][ T6808] ? idr_alloc+0x11c/0x130 [ 55.787035][ T6808] __warn.cold+0x20/0x45 [ 55.791272][ T6808] ? idr_alloc+0x11c/0x130 [ 55.795673][ T6808] report_bug+0x1bd/0x210 [ 55.799982][ T6808] handle_bug+0x38/0x90 [ 55.804899][ T6808] exc_invalid_op+0x13/0x40 [ 55.809388][ T6808] asm_exc_invalid_op+0x12/0x20 [ 55.814231][ T6808] RIP: 0010:idr_alloc+0x11c/0x130 [ 55.819248][ T6808] Code: 00 00 00 48 8b 44 24 58 65 48 2b 04 25 28 00 00 00 75 21 48 83 c4 60 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 a4 76 c4 fd <0f> 0b 41 bc ea ff ff ff eb b7 e8 d5 2a 3d 04 0f 1f 44 00 00 41 57 [ 55.838943][ T6808] RSP: 0018:ffffc90001637c80 EFLAGS: 00010293 [ 55.844988][ T6808] RAX: 0000000000000000 RBX: 00000000ffffe001 RCX: ffffffff83afb89b [ 55.852951][ T6808] RDX: ffff88808b9be0c0 RSI: ffffffff83afb93c RDI: 0000000000000005 [ 55.860900][ T6808] RBP: 1ffff920002c6f90 R08: 0000000000000a20 R09: ffff8880aa208ab3 [ 55.868858][ T6808] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffe000 [ 55.877066][ T6808] R13: ffffffff8ab05fc0 R14: ffff8880a9156040 R15: 0000000000000a20 [ 55.885026][ T6808] ? idr_alloc+0x7b/0x130 [ 55.889333][ T6808] ? idr_alloc+0x11c/0x130 [ 55.893729][ T6808] ? idr_alloc_u32+0x2d0/0x2d0 [ 55.898468][ T6808] ? security_capable+0x8f/0xc0 [ 55.903300][ T6808] __qrtr_bind.isra.0+0x12e/0x5c0 [ 55.908300][ T6808] ? qrtr_release+0x2a0/0x2a0 [ 55.912953][ T6808] ? __local_bh_enable_ip+0x159/0x250 [ 55.918300][ T6808] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 55.924256][ T6808] ? lock_sock_nested+0x94/0x110 [ 55.929171][ T6808] ? trace_hardirqs_on+0x5f/0x220 [ 55.934172][ T6808] qrtr_bind+0x1c1/0x250 [ 55.938405][ T6808] ? security_socket_bind+0x83/0xb0 [ 55.943580][ T6808] __sys_bind+0x1e9/0x250 [ 55.947973][ T6808] ? __ia32_sys_socketpair+0xf0/0xf0 [ 55.953236][ T6808] ? vmacache_update+0xce/0x140 [ 55.958085][ T6808] ? lock_is_held_type+0xb0/0xe0 [ 55.963011][ T6808] ? lock_is_held_type+0xb0/0xe0 [ 55.967929][ T6808] ? do_syscall_64+0x1c/0xe0 [ 55.972581][ T6808] __x64_sys_bind+0x6f/0xb0 [ 55.977060][ T6808] ? lockdep_hardirqs_on+0x6a/0xe0 [ 55.982156][ T6808] do_syscall_64+0x60/0xe0 [ 55.986548][ T6808] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 55.992417][ T6808] RIP: 0033:0x440229 [ 55.996280][ T6808] Code: Bad RIP value. [ 56.000344][ T6808] RSP: 002b:00007ffc43bf9968 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 56.008759][ T6808] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440229 [ 56.016819][ T6808] RDX: 000000000000000c RSI: 0000000020001380 RDI: 0000000000000003 [ 56.025376][ T6808] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 56.033500][ T6808] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a30 [ 56.041456][ T6808] R13: 0000000000401ac0 R14: 0000000000000000 R15: 0000000000000000 [ 56.052092][ T6808] Kernel Offset: disabled [ 56.056480][ T6808] Rebooting in 86400 seconds..