Warning: Permanently added '10.128.0.114' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 47.177304] kasan: CONFIG_KASAN_INLINE enabled [ 47.182030] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 47.189425] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 47.195655] CPU: 0 PID: 5662 Comm: syz-executor909 Not tainted 4.20.0-rc1-next-20181107+ #107 [ 47.204299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.213643] RIP: 0010:__x86_indirect_thunk_rbx+0x10/0x20 [ 47.219075] Code: 90 0f ae e8 eb f9 48 89 04 24 c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00 f3 90 0f ae e8 eb f9 48 89 1c 24 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00 f3 [ 47.237956] RSP: 0018:ffff8801c3a4f2b0 EFLAGS: 00010293 [ 47.243311] RAX: ffff8801d8a08700 RBX: 894cdffffc000000 RCX: ffffffff81ed555d [ 47.250566] RDX: 0000000000000000 RSI: ffffffff81ed5c9e RDI: ffff8801c3a4f338 [ 47.257820] RBP: ffff8801c3a4f4a0 R08: ffff8801d8a08700 R09: ffffed003b5c5b67 [ 47.265075] R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: ffff8801d874bd00 [ 47.272331] R13: ffff8801c3a4f338 R14: 1ffff10038749e5b R15: dffffc0000000000 [ 47.279586] FS: 0000000000000000(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 47.287839] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.293719] CR2: 0000000020000000 CR3: 000000000946a000 CR4: 00000000001406f0 [ 47.300974] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.308229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.315483] Call Trace: [ 47.318064] ? locks_remove_flock+0x236/0x350 [ 47.322545] ? flock_lock_inode+0x11c0/0x11c0 [ 47.327026] ? mark_held_locks+0x130/0x130 [ 47.331243] ? unwind_dump+0x190/0x190 [ 47.335170] ? is_bpf_text_address+0xd3/0x170 [ 47.339658] ? kernel_text_address+0x79/0xf0 [ 47.344108] ? __kernel_text_address+0xd/0x40 [ 47.348593] ? unwind_get_return_address+0x61/0xa0 [ 47.353513] ? __save_stack_trace+0x8d/0xf0 [ 47.357829] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.363349] locks_remove_file+0x148/0x5c0 [ 47.367567] ? fcntl_setlk+0xfc0/0xfc0 [ 47.371437] ? fsnotify_first_mark+0x350/0x350 [ 47.376001] ? __fsnotify_parent+0xcc/0x420 [ 47.380308] ? perf_trace_sched_process_exec+0x860/0x860 [ 47.385753] ? fsnotify+0xf20/0xf20 [ 47.389373] ? __might_sleep+0x95/0x190 [ 47.393334] __fput+0x2f0/0xa70 [ 47.396599] ? get_max_files+0x20/0x20 [ 47.400470] ? trace_hardirqs_on+0xbd/0x310 [ 47.404776] ? kasan_check_read+0x11/0x20 [ 47.408908] ? task_work_run+0x1af/0x2a0 [ 47.412954] ? trace_hardirqs_off_caller+0x300/0x300 [ 47.418043] ____fput+0x15/0x20 [ 47.421305] task_work_run+0x1e8/0x2a0 [ 47.425178] ? task_work_cancel+0x240/0x240 [ 47.429494] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 47.435018] ? switch_task_namespaces+0x9d/0xd0 [ 47.439676] do_exit+0x1ad1/0x26d0 [ 47.443212] ? lock_downgrade+0x900/0x900 [ 47.447346] ? check_preemption_disabled+0x48/0x280 [ 47.452348] ? rcu_read_unlock_special+0x181/0x1c0 [ 47.457259] ? mm_update_next_owner+0x990/0x990 [ 47.461924] ? rcu_softirq_qs+0x20/0x20 [ 47.465897] ? rcu_softirq_qs+0x20/0x20 [ 47.469854] ? unwind_dump+0x190/0x190 [ 47.473730] ? is_bpf_text_address+0xd3/0x170 [ 47.478219] ? kernel_text_address+0x79/0xf0 [ 47.482613] ? __kernel_text_address+0xd/0x40 [ 47.487091] ? unwind_get_return_address+0x61/0xa0 [ 47.492003] ? __save_stack_trace+0x8d/0xf0 [ 47.496316] ? save_stack+0xa9/0xd0 [ 47.499934] ? save_stack+0x43/0xd0 [ 47.503545] ? __kasan_slab_free+0x102/0x150 [ 47.507937] ? kasan_slab_free+0xe/0x10 [ 47.511893] ? kmem_cache_free+0x83/0x290 [ 47.516025] ? locks_free_lock+0x295/0x420 [ 47.520255] ? __x64_sys_flock+0x289/0x350 [ 47.524478] ? do_syscall_64+0x1b9/0x820 [ 47.528523] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 47.533878] ? trace_hardirqs_off+0xb8/0x310 [ 47.538270] ? kasan_check_read+0x11/0x20 [ 47.542407] ? do_raw_spin_unlock+0xa7/0x330 [ 47.546863] ? trace_hardirqs_off+0xb8/0x310 [ 47.551273] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.556802] ? check_preemption_disabled+0x48/0x280 [ 47.561861] ? rcu_lockdep_current_cpu_online+0x1a4/0x210 [ 47.567395] ? rcu_pm_notify+0xc0/0xc0 [ 47.571273] ? locks_free_lock+0x295/0x420 [ 47.575496] ? locks_free_lock+0x295/0x420 [ 47.579716] ? rcu_read_lock_sched_held+0x14f/0x180 [ 47.584731] ? kmem_cache_free+0x24f/0x290 [ 47.588955] ? locks_free_lock+0x295/0x420 [ 47.593186] ? leases_conflict+0x190/0x190 [ 47.597409] ? locks_mandatory_area+0x6a0/0x6a0 [ 47.602066] ? apparmor_path_rmdir+0x30/0x30 [ 47.606459] do_group_exit+0x177/0x440 [ 47.610332] ? trace_hardirqs_on+0xbd/0x310 [ 47.614637] ? __ia32_sys_exit+0x50/0x50 [ 47.618690] ? trace_hardirqs_off_caller+0x300/0x300 [ 47.623780] __x64_sys_exit_group+0x3e/0x50 [ 47.628085] do_syscall_64+0x1b9/0x820 [ 47.632049] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 47.637406] ? syscall_return_slowpath+0x5e0/0x5e0 [ 47.642319] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.647158] ? trace_hardirqs_on_caller+0x310/0x310 [ 47.652175] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 47.657185] ? prepare_exit_to_usermode+0x291/0x3b0 [ 47.662190] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.667023] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 47.672198] RIP: 0033:0x43ec48 [ 47.675385] Code: Bad RIP value. [ 47.678736] RSP: 002b:00007fff246bbf38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 47.686427] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043ec48 [ 47.693690] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 47.700942] RBP: 00000000004be508 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 47.708193] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 47.715449] R13: 00000000006d0180 R14: 0000000000000000 R15: 0000000000000000 [ 47.722715] Modules linked in: [ 47.726191] ---[ end trace 7daf0594f20f5e2c ]--- [ 47.730988] RIP: 0010:__x86_indirect_thunk_rbx+0x10/0x20 [ 47.736428] Code: 90 0f ae e8 eb f9 48 89 04 24 c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00 f3 90 0f ae e8 eb f9 48 89 1c 24 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00 f3 [ 47.755393] RSP: 0018:ffff8801c3a4f2b0 EFLAGS: 00010293 [ 47.760944] RAX: ffff8801d8a08700 RBX: 894cdffffc000000 RCX: ffffffff81ed555d [ 47.768202] RDX: 0000000000000000 RSI: ffffffff81ed5c9e RDI: ffff8801c3a4f338 [ 47.775493] RBP: ffff8801c3a4f4a0 R08: ffff8801d8a08700 R09: ffffed003b5c5b67 [ 47.782774] R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: ffff8801d874bd00 [ 47.790842] R13: ffff8801c3a4f338 R14: 1ffff10038749e5b R15: dffffc0000000000 [ 47.798112] FS: 0000000001c8a880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 47.806419] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.812364] CR2: 000000000043ec1e CR3: 000000000946a000 CR4: 00000000001406f0 [ 47.819665] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.826928] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.834212] Kernel panic - not syncing: Fatal exception [ 47.840570] Kernel Offset: disabled [ 47.844192] Rebooting in 86400 seconds..