[ 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 '10.128.0.168' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 57.060885][ T6823] ------------[ cut here ]------------ [ 57.066513][ T6823] WARNING: CPU: 0 PID: 6823 at lib/idr.c:84 idr_alloc+0x11c/0x130 [ 57.074317][ T6823] Kernel panic - not syncing: panic_on_warn set ... [ 57.080884][ T6823] CPU: 0 PID: 6823 Comm: syz-executor304 Not tainted 5.7.0-rc7-next-20200529-syzkaller #0 [ 57.090744][ T6823] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.100776][ T6823] Call Trace: [ 57.104046][ T6823] dump_stack+0x18f/0x20d [ 57.108384][ T6823] ? idr_alloc+0x80/0x130 [ 57.112704][ T6823] panic+0x2e3/0x75c [ 57.116596][ T6823] ? __warn_printk+0xf3/0xf3 [ 57.121179][ T6823] ? printk+0xba/0xed [ 57.125137][ T6823] ? log_store.cold+0x16/0x16 [ 57.129791][ T6823] ? __warn.cold+0x14/0x3a [ 57.134184][ T6823] ? __warn+0xd6/0x1b2 [ 57.138234][ T6823] ? idr_alloc+0x11c/0x130 [ 57.142628][ T6823] __warn.cold+0x2f/0x3a [ 57.146849][ T6823] ? idr_alloc+0x11c/0x130 [ 57.151241][ T6823] report_bug+0x27b/0x2f0 [ 57.155552][ T6823] do_error_trap+0x153/0x2b0 [ 57.160117][ T6823] ? idr_alloc+0x11c/0x130 [ 57.164512][ T6823] exc_invalid_op+0x37/0x50 [ 57.168993][ T6823] ? idr_alloc+0x11c/0x130 [ 57.173386][ T6823] asm_exc_invalid_op+0x12/0x20 [ 57.178211][ T6823] RIP: 0010:idr_alloc+0x11c/0x130 [ 57.183211][ T6823] Code: 00 00 00 44 89 e0 48 8b 4c 24 58 65 48 33 0c 25 28 00 00 00 75 1e 48 83 c4 60 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 04 cd c2 fd <0f> 0b 41 bc ea ff ff ff eb b7 e8 15 5f 2f 04 0f 1f 44 00 00 41 57 [ 57.202799][ T6823] RSP: 0018:ffffc90001277c80 EFLAGS: 00010293 [ 57.208862][ T6823] RAX: ffff8880a4c860c0 RBX: 00000000ffff0301 RCX: ffffffff83b02dfb [ 57.216828][ T6823] RDX: 0000000000000000 RSI: ffffffff83b02e9c RDI: 0000000000000005 [ 57.224779][ T6823] RBP: 1ffff9200024ef90 R08: ffff8880a4c860c0 R09: ffffed1015440d57 [ 57.232773][ T6823] R10: ffff8880aa206ab3 R11: ffffed1015440d56 R12: 00000000ffff0300 [ 57.240719][ T6823] R13: ffffffff8aa588e0 R14: ffff8880964a3640 R15: 0000000000000a20 [ 57.248725][ T6823] ? idr_alloc+0x7b/0x130 [ 57.253031][ T6823] ? idr_alloc+0x11c/0x130 [ 57.257525][ T6823] ? idr_alloc_u32+0x2d0/0x2d0 [ 57.262283][ T6823] ? security_capable+0x8e/0xc0 [ 57.267135][ T6823] __qrtr_bind.isra.0+0x12e/0x5c0 [ 57.272142][ T6823] ? qrtr_release+0x2a0/0x2a0 [ 57.276798][ T6823] ? __local_bh_enable_ip+0x159/0x270 [ 57.282150][ T6823] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 57.288106][ T6823] ? lock_sock_nested+0x94/0x110 [ 57.293019][ T6823] ? lock_sock_nested+0x94/0x110 [ 57.297933][ T6823] qrtr_bind+0x1c1/0x24a [ 57.302156][ T6823] ? security_socket_bind+0x82/0xb0 [ 57.307331][ T6823] __sys_bind+0x20e/0x250 [ 57.311635][ T6823] ? __ia32_sys_socketpair+0xf0/0xf0 [ 57.316941][ T6823] ? prepare_exit_to_usermode+0xa/0x30 [ 57.322379][ T6823] ? check_preemption_disabled+0x38/0x220 [ 57.328074][ T6823] ? do_syscall_64+0x17/0xe0 [ 57.332641][ T6823] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.338163][ T6823] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.344120][ T6823] ? do_syscall_64+0x1c/0xe0 [ 57.348694][ T6823] __x64_sys_bind+0x6f/0xb0 [ 57.353171][ T6823] do_syscall_64+0x60/0xe0 [ 57.357567][ T6823] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.363432][ T6823] RIP: 0033:0x4401a9 [ 57.367302][ T6823] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 57.386882][ T6823] RSP: 002b:00007ffefba96ab8 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 57.395354][ T6823] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401a9 [ 57.403306][ T6823] RDX: 000000000000000c RSI: 0000000020000040 RDI: 0000000000000003 [ 57.411255][ T6823] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 57.419203][ T6823] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a30 [ 57.427150][ T6823] R13: 0000000000401ac0 R14: 0000000000000000 R15: 0000000000000000 [ 57.436490][ T6823] Kernel Offset: disabled [ 57.440866][ T6823] Rebooting in 86400 seconds..