INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.35' (ECDSA) to the list of known hosts. syzkaller login: [ 27.820282] IPVS: ftp: loaded support on port[0] = 21 executing program [ 27.851878] IPVS: ftp: loaded support on port[0] = 21 executing program [ 27.877239] FAULT_INJECTION: forcing a failure. [ 27.877239] name failslab, interval 1, probability 0, space 0, times 1 [ 27.888599] CPU: 0 PID: 4434 Comm: syzkaller083402 Not tainted 4.16.0-rc6+ #40 [ 27.895951] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.904148] IPVS: ftp: loaded support on port[0] = 21 [ 27.905291] Call Trace: [ 27.905311] dump_stack+0x194/0x24d [ 27.905327] ? arch_local_irq_restore+0x53/0x53 [ 27.905355] should_fail+0x8c0/0xa40 [ 27.914125] FAULT_INJECTION: forcing a failure. [ 27.914125] name failslab, interval 1, probability 0, space 0, times 1 [ 27.916695] ? __free_insn_slot+0x5c0/0x5c0 [ 27.916713] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 27.916730] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 27.916741] ? __lock_acquire+0x664/0x3e00 [ 27.954998] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 27.960356] ? find_held_lock+0x35/0x1d0 [ 27.964409] ? __lock_is_held+0xb6/0x140 [ 27.968476] ? check_same_owner+0x320/0x320 [ 27.972784] ? __d_lookup+0x4f4/0x830 [ 27.976574] ? rcu_note_context_switch+0x710/0x710 [ 27.981506] should_failslab+0xec/0x120 [ 27.985467] kmem_cache_alloc+0x47/0x760 [ 27.989535] __d_alloc+0xc1/0xbd0 [ 27.992976] ? shrink_dcache_for_umount+0x290/0x290 [ 27.997990] ? d_alloc_parallel+0x1b40/0x1b40 [ 28.002475] ? lock_release+0xa40/0xa40 [ 28.006444] ? mark_held_locks+0xaf/0x100 [ 28.010582] ? d_lookup+0x133/0x2e0 [ 28.014213] ? d_lookup+0x1d5/0x2e0 [ 28.017837] d_alloc+0x8e/0x340 [ 28.021105] ? __d_alloc+0xbd0/0xbd0 [ 28.024804] ? full_name_hash+0x9b/0xe0 [ 28.028780] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 28.034050] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 28.038311] rpc_populate.constprop.15+0xa3/0x340 [ 28.043152] rpc_fill_super+0x379/0xae0 [ 28.047112] ? cap_capable+0x1b5/0x230 [ 28.050983] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 28.056160] ? security_capable+0x8e/0xc0 [ 28.060294] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 28.065465] ? ns_capable_common+0xcf/0x160 [ 28.069778] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 28.074951] mount_ns+0xc4/0x190 [ 28.078310] rpc_mount+0x9e/0xd0 [ 28.081667] mount_fs+0x66/0x2d0 [ 28.085031] vfs_kern_mount.part.26+0xc6/0x4a0 [ 28.089607] ? may_umount+0xa0/0xa0 [ 28.093219] ? _raw_read_unlock+0x22/0x30 [ 28.097348] ? __get_fs_type+0x8a/0xc0 [ 28.101228] do_mount+0xea4/0x2bb0 [ 28.104747] ? __might_fault+0x110/0x1d0 [ 28.108823] ? copy_mount_string+0x40/0x40 [ 28.113042] ? check_same_owner+0x320/0x320 [ 28.117346] ? __check_object_size+0x8b/0x530 [ 28.122950] ? __might_sleep+0x95/0x190 [ 28.126922] ? kasan_check_write+0x14/0x20 [ 28.131139] ? _copy_from_user+0x99/0x110 [ 28.135273] ? memdup_user+0x5e/0x90 [ 28.138971] ? copy_mount_options+0x1f7/0x2e0 [ 28.143459] SyS_mount+0xab/0x120 [ 28.146893] ? copy_mnt_ns+0xb30/0xb30 [ 28.150769] do_syscall_64+0x281/0x940 [ 28.154643] ? __do_page_fault+0xc90/0xc90 [ 28.158868] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 28.163622] ? syscall_return_slowpath+0x550/0x550 [ 28.168539] ? syscall_return_slowpath+0x2ac/0x550 [ 28.173458] ? prepare_exit_to_usermode+0x350/0x350 [ 28.178464] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 28.183821] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.188658] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 28.193829] RIP: 0033:0x442b59 [ 28.196997] RSP: 002b:00007ffda9f33e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 28.204695] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442b59 [ 28.211949] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 28.219200] RBP: 00007ffda9f34710 R08: 0000000000000000 R09: 0000000000000000 [ 28.226450] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 28.233703] R13: 0000000000000004 R14: 0000000000000000 R15: 00007ffda9f33fa8 [ 28.240985] CPU: 1 PID: 4435 Comm: syzkaller083402 Not tainted 4.16.0-rc6+ #40 [ 28.242968] net/sunrpc/rpc_pipe.c: rpc_populate failed to populate directory / [ 28.248337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.248341] Call Trace: [ 28.248356] dump_stack+0x194/0x24d [ 28.248370] ? arch_local_irq_restore+0x53/0x53 [ 28.248398] should_fail+0x8c0/0xa40 [ 28.248407] ? __free_insn_slot+0x5c0/0x5c0 [ 28.248419] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 28.248435] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 28.294226] ? __lock_acquire+0x664/0x3e00 [ 28.298461] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 28.303517] IPVS: ftp: loaded support on port[0] = 21 [ 28.303651] ? find_held_lock+0x35/0x1d0 [ 28.312872] ? __lock_is_held+0xb6/0x140 [ 28.314861] FAULT_INJECTION: forcing a failure. [ 28.314861] name failslab, interval 1, probability 0, space 0, times 0 [ 28.316943] ? check_same_owner+0x320/0x320 [ 28.316953] ? __d_lookup+0x4f4/0x830 [ 28.316967] ? rcu_note_context_switch+0x710/0x710 [ 28.341110] should_failslab+0xec/0x120 [ 28.345070] kmem_cache_alloc+0x47/0x760 [ 28.349132] __d_alloc+0xc1/0xbd0 [ 28.352748] ? shrink_dcache_for_umount+0x290/0x290 [ 28.357758] ? d_alloc_parallel+0x1b40/0x1b40 [ 28.362247] ? lock_release+0xa40/0xa40 [ 28.366216] ? mark_held_locks+0xaf/0x100 [ 28.370349] ? d_lookup+0x133/0x2e0 [ 28.373974] ? d_lookup+0x1d5/0x2e0 [ 28.377592] d_alloc+0x8e/0x340 [ 28.380860] ? __d_alloc+0xbd0/0xbd0 [ 28.384561] ? full_name_hash+0x9b/0xe0 [ 28.388533] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 28.393887] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 28.398174] rpc_populate.constprop.15+0xa3/0x340 [ 28.403019] rpc_fill_super+0x379/0xae0 [ 28.406983] ? cap_capable+0x1b5/0x230 [ 28.410854] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 28.416033] ? security_capable+0x8e/0xc0 [ 28.420166] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 28.425335] ? ns_capable_common+0xcf/0x160 [ 28.429642] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 28.434821] mount_ns+0xc4/0x190 [ 28.438177] rpc_mount+0x9e/0xd0 [ 28.441530] mount_fs+0x66/0x2d0 [ 28.444884] vfs_kern_mount.part.26+0xc6/0x4a0 [ 28.449453] ? may_umount+0xa0/0xa0 [ 28.453065] ? _raw_read_unlock+0x22/0x30 [ 28.457195] ? __get_fs_type+0x8a/0xc0 [ 28.461076] do_mount+0xea4/0x2bb0 [ 28.464600] ? __might_fault+0x110/0x1d0 [ 28.468659] ? copy_mount_string+0x40/0x40 [ 28.472874] ? check_same_owner+0x320/0x320 [ 28.477180] ? __check_object_size+0x8b/0x530 [ 28.481669] ? __might_sleep+0x95/0x190 [ 28.485638] ? kasan_check_write+0x14/0x20 [ 28.489858] ? _copy_from_user+0x99/0x110 [ 28.493998] ? memdup_user+0x5e/0x90 [ 28.497702] ? copy_mount_options+0x1f7/0x2e0 [ 28.502187] SyS_mount+0xab/0x120 [ 28.505623] ? copy_mnt_ns+0xb30/0xb30 [ 28.509501] do_syscall_64+0x281/0x940 [ 28.513368] ? __do_page_fault+0xc90/0xc90 [ 28.517584] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 28.522326] ? syscall_return_slowpath+0x550/0x550 [ 28.527243] ? syscall_return_slowpath+0x2ac/0x550 [ 28.532158] ? prepare_exit_to_usermode+0x350/0x350 [ 28.537158] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 28.542517] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.547351] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 28.552521] RIP: 0033:0x442b59 [ 28.555694] RSP: 002b:00007ffda9f33e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 28.563384] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442b59 [ 28.570643] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 executing program [ 28.577893] RBP: 00007ffda9f34710 R08: 0000000000000000 R09: 0000000000000000 [ 28.585142] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 28.592393] R13: 0000000000000004 R14: 0000000000000000 R15: 00007ffda9f33fa8 [ 28.599678] CPU: 0 PID: 4436 Comm: syzkaller083402 Not tainted 4.16.0-rc6+ #40 [ 28.607034] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.616385] Call Trace: [ 28.618975] dump_stack+0x194/0x24d [ 28.622611] ? arch_local_irq_restore+0x53/0x53 [ 28.627295] should_fail+0x8c0/0xa40 executing program [ 28.631004] ? __free_insn_slot+0x5c0/0x5c0 [ 28.635329] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 28.640434] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 28.642152] FAULT_INJECTION: forcing a failure. [ 28.642152] name failslab, interval 1, probability 0, space 0, times 0 [ 28.645617] ? __lock_acquire+0x664/0x3e00 [ 28.645628] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 28.645649] ? find_held_lock+0x35/0x1d0 [ 28.670239] ? __lock_is_held+0xb6/0x140 [ 28.674307] ? check_same_owner+0x320/0x320 [ 28.678607] ? __d_lookup+0x4f4/0x830 [ 28.682394] ? rcu_note_context_switch+0x710/0x710 [ 28.687318] should_failslab+0xec/0x120 [ 28.691275] kmem_cache_alloc+0x47/0x760 [ 28.695337] __d_alloc+0xc1/0xbd0 [ 28.698779] ? shrink_dcache_for_umount+0x290/0x290 [ 28.703786] ? d_alloc_parallel+0x1b40/0x1b40 [ 28.708271] ? lock_release+0xa40/0xa40 [ 28.712238] ? mark_held_locks+0xaf/0x100 [ 28.716369] ? d_lookup+0x133/0x2e0 [ 28.720012] ? d_lookup+0x1d5/0x2e0 [ 28.723628] d_alloc+0x8e/0x340 [ 28.726894] ? __d_alloc+0xbd0/0xbd0 [ 28.730595] ? full_name_hash+0x9b/0xe0 [ 28.734577] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 28.739838] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 28.744073] rpc_populate.constprop.15+0xa3/0x340 [ 28.748909] rpc_fill_super+0x379/0xae0 [ 28.752873] ? cap_capable+0x1b5/0x230 [ 28.756749] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 28.761924] ? security_capable+0x8e/0xc0 [ 28.766062] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 28.771232] ? ns_capable_common+0xcf/0x160 [ 28.775543] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 28.780714] mount_ns+0xc4/0x190 [ 28.784073] rpc_mount+0x9e/0xd0 [ 28.787427] mount_fs+0x66/0x2d0 [ 28.790785] vfs_kern_mount.part.26+0xc6/0x4a0 [ 28.795354] ? may_umount+0xa0/0xa0 [ 28.798968] ? _raw_read_unlock+0x22/0x30 [ 28.803103] ? __get_fs_type+0x8a/0xc0 [ 28.806994] do_mount+0xea4/0x2bb0 [ 28.810518] ? __might_fault+0x110/0x1d0 [ 28.814576] ? copy_mount_string+0x40/0x40 [ 28.818795] ? check_same_owner+0x320/0x320 [ 28.823099] ? __check_object_size+0x8b/0x530 [ 28.827587] ? __might_sleep+0x95/0x190 [ 28.831564] ? kasan_check_write+0x14/0x20 [ 28.835782] ? _copy_from_user+0x99/0x110 [ 28.839917] ? memdup_user+0x5e/0x90 [ 28.843611] ? copy_mount_options+0x1f7/0x2e0 [ 28.848099] SyS_mount+0xab/0x120 [ 28.851534] ? copy_mnt_ns+0xb30/0xb30 [ 28.855406] do_syscall_64+0x281/0x940 [ 28.859273] ? __do_page_fault+0xc90/0xc90 [ 28.863489] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 28.868227] ? syscall_return_slowpath+0x550/0x550 [ 28.873145] ? syscall_return_slowpath+0x2ac/0x550 [ 28.878059] ? prepare_exit_to_usermode+0x350/0x350 [ 28.883062] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 28.888417] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.893268] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 28.898453] RIP: 0033:0x442b59 [ 28.901624] RSP: 002b:00007ffda9f33e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 28.909312] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442b59 [ 28.916563] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 28.923815] RBP: 00007ffda9f34710 R08: 0000000000000000 R09: 0000000000000000 [ 28.931068] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 28.938316] R13: 0000000000000004 R14: 0000000000000000 R15: 00007ffda9f33fa8 [ 28.945598] CPU: 1 PID: 4437 Comm: syzkaller083402 Not tainted 4.16.0-rc6+ #40 [ 28.951595] IPVS: ftp: loaded support on port[0] = 21 [ 28.952945] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.952950] Call Trace: [ 28.952965] dump_stack+0x194/0x24d [ 28.952979] ? arch_local_irq_restore+0x53/0x53 [ 28.978311] should_fail+0x8c0/0xa40 [ 28.982018] ? __free_insn_slot+0x5c0/0x5c0 [ 28.986339] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 28.990708] IPVS: ftp: loaded support on port[0] = 21 [ 28.991440] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 28.991453] ? __lock_acquire+0x664/0x3e00 [ 29.006003] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 29.011199] ? find_held_lock+0x35/0x1d0 [ 29.015262] ? __lock_is_held+0xb6/0x140 [ 29.019334] ? check_same_owner+0x320/0x320 [ 29.023643] ? __d_lookup+0x4f4/0x830 [ 29.027525] ? rcu_note_context_switch+0x710/0x710 executing program [ 29.032467] should_failslab+0xec/0x120 [ 29.036439] kmem_cache_alloc+0x47/0x760 [ 29.040506] __d_alloc+0xc1/0xbd0 [ 29.043957] ? shrink_dcache_for_umount+0x290/0x290 [ 29.048968] ? d_alloc_parallel+0x1b40/0x1b40 [ 29.049580] FAULT_INJECTION: forcing a failure. [ 29.049580] name failslab, interval 1, probability 0, space 0, times 0 [ 29.053458] ? lock_release+0xa40/0xa40 [ 29.053477] ? mark_held_locks+0xaf/0x100 [ 29.053489] ? d_lookup+0x133/0x2e0 [ 29.076330] ? d_lookup+0x1d5/0x2e0 [ 29.079951] d_alloc+0x8e/0x340 [ 29.083215] ? __d_alloc+0xbd0/0xbd0 [ 29.086910] ? full_name_hash+0x9b/0xe0 [ 29.090880] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 29.096142] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 29.100373] rpc_populate.constprop.15+0xa3/0x340 [ 29.105208] rpc_fill_super+0x379/0xae0 [ 29.109168] ? cap_capable+0x1b5/0x230 [ 29.113045] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 29.118222] ? security_capable+0x8e/0xc0 [ 29.122355] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 29.127524] ? ns_capable_common+0xcf/0x160 [ 29.131835] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 29.137005] mount_ns+0xc4/0x190 [ 29.140360] rpc_mount+0x9e/0xd0 [ 29.143716] mount_fs+0x66/0x2d0 [ 29.147070] vfs_kern_mount.part.26+0xc6/0x4a0 [ 29.151637] ? may_umount+0xa0/0xa0 [ 29.155247] ? _raw_read_unlock+0x22/0x30 [ 29.159379] ? __get_fs_type+0x8a/0xc0 [ 29.163258] do_mount+0xea4/0x2bb0 [ 29.166777] ? __might_fault+0x110/0x1d0 [ 29.170830] ? copy_mount_string+0x40/0x40 [ 29.175049] ? check_same_owner+0x320/0x320 [ 29.179352] ? __check_object_size+0x8b/0x530 [ 29.183837] ? __might_sleep+0x95/0x190 [ 29.187801] ? kasan_check_write+0x14/0x20 [ 29.192026] ? _copy_from_user+0x99/0x110 [ 29.196163] ? memdup_user+0x5e/0x90 [ 29.199859] ? copy_mount_options+0x1f7/0x2e0 [ 29.204344] SyS_mount+0xab/0x120 [ 29.207779] ? copy_mnt_ns+0xb30/0xb30 [ 29.211769] do_syscall_64+0x281/0x940 [ 29.215637] ? __do_page_fault+0xc90/0xc90 [ 29.219855] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.225375] ? syscall_return_slowpath+0x550/0x550 [ 29.230286] ? syscall_return_slowpath+0x2ac/0x550 [ 29.235208] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 29.240562] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.245397] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 29.250568] RIP: 0033:0x442b59 [ 29.253741] RSP: 002b:00007ffda9f33e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 29.261430] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442b59 [ 29.268681] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 29.275931] RBP: 00007ffda9f34710 R08: 0000000000000000 R09: 0000000000000000 [ 29.283183] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 29.290436] R13: 0000000000000004 R14: 0000000000000000 R15: 00007ffda9f33fa8 [ 29.297721] CPU: 0 PID: 4438 Comm: syzkaller083402 Not tainted 4.16.0-rc6+ #40 [ 29.299500] net/sunrpc/rpc_pipe.c: rpc_populate failed to populate directory / [ 29.305068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.305073] Call Trace: [ 29.305090] dump_stack+0x194/0x24d [ 29.305105] ? arch_local_irq_restore+0x53/0x53 executing program [ 29.305115] ? trace_hardirqs_off+0x10/0x10 [ 29.305126] ? register_shrinker+0x10e/0x2d0 [ 29.314543] net/sunrpc/rpc_pipe.c: rpc_populate failed to populate directory / [ 29.322152] ? sget_userns+0xbbf/0xe40 [ 29.322158] ? mount_ns+0x6d/0x190 [ 29.322180] should_fail+0x8c0/0xa40 [ 29.322192] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 29.322204] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 29.322213] ? find_held_lock+0x35/0x1d0 [ 29.331834] net/sunrpc/rpc_pipe.c: rpc_populate failed to populate directory / [ 29.333042] ? register_shrinker+0x230/0x2d0 [ 29.333063] ? find_held_lock+0x35/0x1d0 [ 29.333081] ? __lock_is_held+0xb6/0x140 [ 29.357305] FAULT_INJECTION: forcing a failure. [ 29.357305] name failslab, interval 1, probability 0, space 0, times 0 [ 29.360195] ? check_same_owner+0x320/0x320 [ 29.360207] ? trace_hardirqs_off+0x10/0x10 [ 29.413995] ? rcu_note_context_switch+0x710/0x710 [ 29.418910] ? register_shrinker+0x10e/0x2d0 [ 29.423318] should_failslab+0xec/0x120 [ 29.427278] kmem_cache_alloc+0x47/0x760 [ 29.431318] ? find_held_lock+0x35/0x1d0 [ 29.435547] ? rpc_i_callback+0x30/0x30 [ 29.439503] rpc_alloc_inode+0x1a/0x20 [ 29.443372] alloc_inode+0x65/0x180 [ 29.446980] new_inode_pseudo+0x69/0x190 [ 29.451023] ? prune_icache_sb+0x1a0/0x1a0 [ 29.455243] ? __lock_is_held+0xb6/0x140 [ 29.459294] new_inode+0x1c/0x40 [ 29.462643] rpc_get_inode+0x20/0x1e0 [ 29.466427] rpc_fill_super+0x327/0xae0 [ 29.470393] ? cap_capable+0x1b5/0x230 [ 29.474264] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 29.479446] ? security_capable+0x8e/0xc0 [ 29.483577] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 29.488746] ? ns_capable_common+0xcf/0x160 [ 29.493053] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 29.498224] mount_ns+0xc4/0x190 [ 29.501578] rpc_mount+0x9e/0xd0 [ 29.504933] mount_fs+0x66/0x2d0 [ 29.508288] vfs_kern_mount.part.26+0xc6/0x4a0 [ 29.512855] ? may_umount+0xa0/0xa0 [ 29.516463] ? _raw_read_unlock+0x22/0x30 [ 29.520590] ? __get_fs_type+0x8a/0xc0 [ 29.524470] do_mount+0xea4/0x2bb0 [ 29.527995] ? __might_fault+0x110/0x1d0 [ 29.532049] ? copy_mount_string+0x40/0x40 [ 29.536263] ? check_same_owner+0x320/0x320 [ 29.540566] ? __check_object_size+0x8b/0x530 [ 29.545052] ? __might_sleep+0x95/0x190 [ 29.549018] ? kasan_check_write+0x14/0x20 [ 29.553236] ? _copy_from_user+0x99/0x110 [ 29.557371] ? memdup_user+0x5e/0x90 [ 29.561068] ? copy_mount_options+0x1f7/0x2e0 [ 29.565555] SyS_mount+0xab/0x120 [ 29.568988] ? copy_mnt_ns+0xb30/0xb30 [ 29.572862] do_syscall_64+0x281/0x940 [ 29.576732] ? __do_page_fault+0xc90/0xc90 [ 29.580952] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.586477] ? syscall_return_slowpath+0x550/0x550 [ 29.591388] ? syscall_return_slowpath+0x2ac/0x550 [ 29.596309] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 29.601663] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.606503] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 29.611670] RIP: 0033:0x442b59 [ 29.614838] RSP: 002b:00007ffda9f33e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 29.622528] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442b59 [ 29.629777] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 29.637028] RBP: 00007ffda9f34710 R08: 0000000000000000 R09: 0000000000000000 [ 29.644277] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 29.651529] R13: 0000000000000004 R14: 0000000000000000 R15: 00007ffda9f33fa8 [ 29.658810] CPU: 1 PID: 4442 Comm: syzkaller083402 Not tainted 4.16.0-rc6+ #40 [ 29.666163] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.668571] IPVS: ftp: loaded support on port[0] = 21 [ 29.675503] Call Trace: executing program [ 29.675520] dump_stack+0x194/0x24d [ 29.675534] ? arch_local_irq_restore+0x53/0x53 [ 29.675549] ? find_held_lock+0x35/0x1d0 [ 29.675572] should_fail+0x8c0/0xa40 [ 29.699295] ? __list_lru_init+0x352/0x750 [ 29.703531] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 29.708628] ? trace_hardirqs_off+0x10/0x10 [ 29.711786] IPVS: ftp: loaded support on port[0] = 21 [ 29.712941] ? find_next_zero_bit+0xe3/0x110 [ 29.712959] ? trace_hardirqs_off+0x10/0x10 [ 29.726827] ? find_held_lock+0x35/0x1d0 [ 29.735849] FAULT_INJECTION: forcing a failure. [ 29.735849] name failslab, interval 1, probability 0, space 0, times 0 [ 29.736538] ? __lock_is_held+0xb6/0x140 [ 29.736570] ? check_same_owner+0x320/0x320 [ 29.756055] ? lock_downgrade+0x980/0x980 [ 29.760189] ? rcu_note_context_switch+0x710/0x710 [ 29.765105] ? find_held_lock+0x35/0x1d0 [ 29.769156] should_failslab+0xec/0x120 [ 29.773110] __kmalloc+0x63/0x760 [ 29.776545] ? lock_downgrade+0x980/0x980 [ 29.780679] ? register_shrinker+0x10e/0x2d0 [ 29.785071] ? trace_event_raw_event_module_request+0x320/0x320 [ 29.791113] register_shrinker+0x10e/0x2d0 [ 29.795328] ? __bpf_trace_mm_vmscan_wakeup_kswapd+0x40/0x40 [ 29.801111] ? memcpy+0x45/0x50 [ 29.804385] sget_userns+0xbbf/0xe40 [ 29.808077] ? set_anon_super+0x20/0x20 [ 29.812044] ? put_filp+0x90/0x90 [ 29.815479] ? destroy_unused_super.part.6+0xd0/0xd0 [ 29.820563] ? path_lookupat+0x238/0xba0 [ 29.824608] ? mnt_free_id.isra.21+0x50/0x50 [ 29.829007] ? trace_hardirqs_off+0x10/0x10 [ 29.833316] ? putname+0xee/0x130 [ 29.836758] ? cap_capable+0x1b5/0x230 [ 29.840634] ? security_capable+0x8e/0xc0 [ 29.844769] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 29.849941] ? ns_capable_common+0xcf/0x160 [ 29.854249] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 29.859423] mount_ns+0x6d/0x190 [ 29.862780] rpc_mount+0x9e/0xd0 [ 29.866130] mount_fs+0x66/0x2d0 [ 29.869485] vfs_kern_mount.part.26+0xc6/0x4a0 [ 29.874053] ? may_umount+0xa0/0xa0 [ 29.877663] ? _raw_read_unlock+0x22/0x30 [ 29.881791] ? __get_fs_type+0x8a/0xc0 [ 29.885669] do_mount+0xea4/0x2bb0 [ 29.889188] ? __might_fault+0x110/0x1d0 [ 29.893244] ? copy_mount_string+0x40/0x40 [ 29.897460] ? check_same_owner+0x320/0x320 [ 29.901808] ? __check_object_size+0x8b/0x530 [ 29.906297] ? __might_sleep+0x95/0x190 [ 29.910262] ? kasan_check_write+0x14/0x20 [ 29.914478] ? _copy_from_user+0x99/0x110 [ 29.918614] ? memdup_user+0x5e/0x90 [ 29.922308] ? copy_mount_options+0x1f7/0x2e0 [ 29.926792] SyS_mount+0xab/0x120 [ 29.930226] ? copy_mnt_ns+0xb30/0xb30 [ 29.934099] do_syscall_64+0x281/0x940 [ 29.937966] ? __do_page_fault+0xc90/0xc90 [ 29.942184] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.946924] ? syscall_return_slowpath+0x550/0x550 [ 29.952471] ? syscall_return_slowpath+0x2ac/0x550 [ 29.957387] ? prepare_exit_to_usermode+0x350/0x350 [ 29.962387] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 29.967749] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.972582] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 29.977753] RIP: 0033:0x442b59 executing program [ 29.980925] RSP: 002b:00007ffda9f33e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 29.988612] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442b59 [ 29.995862] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 30.003113] RBP: 00007ffda9f34710 R08: 0000000000000000 R09: 0000000000000000 [ 30.010373] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 30.017623] R13: 0000000000000004 R14: 0000000000000000 R15: 00007ffda9f33fa8 [ 30.024907] CPU: 0 PID: 4444 Comm: syzkaller083402 Not tainted 4.16.0-rc6+ #40 executing program executing program [ 30.032262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.041606] Call Trace: [ 30.044193] dump_stack+0x194/0x24d [ 30.047076] FAULT_INJECTION: forcing a failure. [ 30.047076] name failslab, interval 1, probability 0, space 0, times 0 [ 30.047812] ? arch_local_irq_restore+0x53/0x53 [ 30.063610] ? find_held_lock+0x35/0x1d0 [ 30.067665] should_fail+0x8c0/0xa40 [ 30.071360] ? __list_lru_init+0x352/0x750 [ 30.075579] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 30.080662] ? trace_hardirqs_off+0x10/0x10 [ 30.084968] ? find_next_zero_bit+0xe3/0x110 [ 30.089362] ? trace_hardirqs_off+0x10/0x10 [ 30.093673] ? find_held_lock+0x35/0x1d0 [ 30.097724] ? __lock_is_held+0xb6/0x140 [ 30.101787] ? check_same_owner+0x320/0x320 [ 30.106096] ? lock_downgrade+0x980/0x980 [ 30.110230] ? rcu_note_context_switch+0x710/0x710 [ 30.115143] ? find_held_lock+0x35/0x1d0 [ 30.120182] should_failslab+0xec/0x120 [ 30.124146] __kmalloc+0x63/0x760 [ 30.127583] ? lock_downgrade+0x980/0x980 [ 30.131721] ? register_shrinker+0x10e/0x2d0 [ 30.136112] ? trace_event_raw_event_module_request+0x320/0x320 [ 30.142159] register_shrinker+0x10e/0x2d0 [ 30.146378] ? __bpf_trace_mm_vmscan_wakeup_kswapd+0x40/0x40 [ 30.152159] ? memcpy+0x45/0x50 [ 30.155432] sget_userns+0xbbf/0xe40 [ 30.159125] ? set_anon_super+0x20/0x20 [ 30.163091] ? put_filp+0x90/0x90 [ 30.166527] ? destroy_unused_super.part.6+0xd0/0xd0 [ 30.171611] ? path_lookupat+0x238/0xba0 [ 30.175661] ? mnt_free_id.isra.21+0x50/0x50 [ 30.180061] ? trace_hardirqs_off+0x10/0x10 [ 30.184371] ? putname+0xee/0x130 [ 30.187809] ? cap_capable+0x1b5/0x230 [ 30.191687] ? security_capable+0x8e/0xc0 [ 30.195825] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 30.201001] ? ns_capable_common+0xcf/0x160 [ 30.205396] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 30.210565] mount_ns+0x6d/0x190 [ 30.213919] rpc_mount+0x9e/0xd0 [ 30.217272] mount_fs+0x66/0x2d0 [ 30.220627] vfs_kern_mount.part.26+0xc6/0x4a0 [ 30.225195] ? may_umount+0xa0/0xa0 [ 30.228803] ? _raw_read_unlock+0x22/0x30 [ 30.232935] ? __get_fs_type+0x8a/0xc0 [ 30.236814] do_mount+0xea4/0x2bb0 [ 30.240335] ? __might_fault+0x110/0x1d0 [ 30.244386] ? copy_mount_string+0x40/0x40 [ 30.248603] ? check_same_owner+0x320/0x320 [ 30.252909] ? __check_object_size+0x8b/0x530 [ 30.257394] ? __might_sleep+0x95/0x190 [ 30.261359] ? kasan_check_write+0x14/0x20 [ 30.265576] ? _copy_from_user+0x99/0x110 [ 30.269712] ? memdup_user+0x5e/0x90 [ 30.273409] ? copy_mount_options+0x1f7/0x2e0 [ 30.277908] SyS_mount+0xab/0x120 [ 30.281343] ? copy_mnt_ns+0xb30/0xb30 [ 30.285213] do_syscall_64+0x281/0x940 [ 30.289078] ? __do_page_fault+0xc90/0xc90 [ 30.293294] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.298035] ? syscall_return_slowpath+0x550/0x550 [ 30.302949] ? syscall_return_slowpath+0x2ac/0x550 [ 30.307862] ? prepare_exit_to_usermode+0x350/0x350 [ 30.312859] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 30.318211] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.323048] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 30.328219] RIP: 0033:0x442b59 [ 30.331388] RSP: 002b:00007ffda9f33e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 30.339076] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442b59 [ 30.346324] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 30.353575] RBP: 00007ffda9f34710 R08: 0000000000000000 R09: 0000000000000000 [ 30.360827] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 30.368075] R13: 0000000000000004 R14: 0000000000000000 R15: 00007ffda9f33fa8 [ 30.375355] CPU: 1 PID: 4443 Comm: syzkaller083402 Not tainted 4.16.0-rc6+ #40 [ 30.382720] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.383734] FAULT_INJECTION: forcing a failure. [ 30.383734] name failslab, interval 1, probability 0, space 0, times 0 [ 30.392059] Call Trace: [ 30.392073] dump_stack+0x194/0x24d [ 30.392088] ? arch_local_irq_restore+0x53/0x53 [ 30.392098] ? trace_hardirqs_off+0x10/0x10 [ 30.392111] ? register_shrinker+0x10e/0x2d0 [ 30.422734] ? sget_userns+0xbbf/0xe40 [ 30.426602] ? mount_ns+0x6d/0x190 [ 30.430134] should_fail+0x8c0/0xa40 [ 30.433831] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.439005] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 30.444091] ? find_held_lock+0x35/0x1d0 [ 30.448145] ? register_shrinker+0x230/0x2d0 [ 30.452544] ? find_held_lock+0x35/0x1d0 [ 30.456593] ? __lock_is_held+0xb6/0x140 [ 30.460654] ? check_same_owner+0x320/0x320 [ 30.464955] ? trace_hardirqs_off+0x10/0x10 [ 30.469260] ? rcu_note_context_switch+0x710/0x710 [ 30.474171] ? register_shrinker+0x10e/0x2d0 [ 30.478572] should_failslab+0xec/0x120 [ 30.482528] kmem_cache_alloc+0x47/0x760 [ 30.486569] ? find_held_lock+0x35/0x1d0 [ 30.490623] ? rpc_i_callback+0x30/0x30 [ 30.494583] rpc_alloc_inode+0x1a/0x20 [ 30.498450] alloc_inode+0x65/0x180 [ 30.502060] new_inode_pseudo+0x69/0x190 [ 30.506103] ? prune_icache_sb+0x1a0/0x1a0 [ 30.510498] ? __lock_is_held+0xb6/0x140 [ 30.514550] new_inode+0x1c/0x40 [ 30.517899] rpc_get_inode+0x20/0x1e0 [ 30.521685] rpc_fill_super+0x327/0xae0 [ 30.525645] ? cap_capable+0x1b5/0x230 [ 30.529515] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 30.534695] ? security_capable+0x8e/0xc0 [ 30.538827] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 30.543999] ? ns_capable_common+0xcf/0x160 [ 30.548310] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 30.553481] mount_ns+0xc4/0x190 [ 30.556838] rpc_mount+0x9e/0xd0 [ 30.560192] mount_fs+0x66/0x2d0 [ 30.563547] vfs_kern_mount.part.26+0xc6/0x4a0 [ 30.568116] ? may_umount+0xa0/0xa0 [ 30.571725] ? _raw_read_unlock+0x22/0x30 [ 30.575854] ? __get_fs_type+0x8a/0xc0 [ 30.579733] do_mount+0xea4/0x2bb0 [ 30.583253] ? __might_fault+0x110/0x1d0 [ 30.587318] ? copy_mount_string+0x40/0x40 [ 30.591535] ? check_same_owner+0x320/0x320 [ 30.595840] ? __check_object_size+0x8b/0x530 [ 30.600331] ? __might_sleep+0x95/0x190 [ 30.604302] ? kasan_check_write+0x14/0x20 [ 30.608518] ? _copy_from_user+0x99/0x110 [ 30.612652] ? memdup_user+0x5e/0x90 [ 30.616346] ? copy_mount_options+0x1f7/0x2e0 [ 30.620830] SyS_mount+0xab/0x120 [ 30.624264] ? copy_mnt_ns+0xb30/0xb30 [ 30.628138] do_syscall_64+0x281/0x940 [ 30.632008] ? __do_page_fault+0xc90/0xc90 [ 30.636230] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.640991] ? syscall_return_slowpath+0x550/0x550 [ 30.645908] ? syscall_return_slowpath+0x2ac/0x550 [ 30.650831] ? prepare_exit_to_usermode+0x350/0x350 [ 30.655834] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 30.661192] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.666030] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 30.671199] RIP: 0033:0x442b59 [ 30.674369] RSP: 002b:00007ffda9f33e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 30.682061] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442b59 [ 30.689311] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 30.696561] RBP: 00007ffda9f34710 R08: 0000000000000000 R09: 0000000300000000 [ 30.703810] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 30.711059] R13: 0000000000000004 R14: 0000000000001380 R15: 00007ffda9f33fa8 [ 30.718343] CPU: 0 PID: 4445 Comm: syzkaller083402 Not tainted 4.16.0-rc6+ #40 [ 30.724855] FAULT_INJECTION: forcing a failure. [ 30.724855] name failslab, interval 1, probability 0, space 0, times 0 [ 30.725692] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.725697] Call Trace: [ 30.725713] dump_stack+0x194/0x24d [ 30.725727] ? arch_local_irq_restore+0x53/0x53 [ 30.725742] ? trace_hardirqs_off+0x10/0x10 [ 30.761331] ? register_shrinker+0x10e/0x2d0 [ 30.765718] ? sget_userns+0xbbf/0xe40 [ 30.769582] ? mount_ns+0x6d/0x190 [ 30.773117] should_fail+0x8c0/0xa40 [ 30.776816] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.781991] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 30.787095] ? find_held_lock+0x35/0x1d0 [ 30.791152] ? register_shrinker+0x230/0x2d0 [ 30.795550] ? find_held_lock+0x35/0x1d0 [ 30.799600] ? __lock_is_held+0xb6/0x140 [ 30.803665] ? check_same_owner+0x320/0x320 [ 30.807963] ? trace_hardirqs_off+0x10/0x10 [ 30.812270] ? rcu_note_context_switch+0x710/0x710 [ 30.817437] ? register_shrinker+0x10e/0x2d0 [ 30.821839] should_failslab+0xec/0x120 [ 30.825797] kmem_cache_alloc+0x47/0x760 [ 30.829841] ? find_held_lock+0x35/0x1d0 [ 30.833894] ? rpc_i_callback+0x30/0x30 [ 30.837856] rpc_alloc_inode+0x1a/0x20 [ 30.841728] alloc_inode+0x65/0x180 [ 30.845335] new_inode_pseudo+0x69/0x190 [ 30.849377] ? prune_icache_sb+0x1a0/0x1a0 [ 30.853598] ? __lock_is_held+0xb6/0x140 [ 30.857646] new_inode+0x1c/0x40 [ 30.861003] rpc_get_inode+0x20/0x1e0 [ 30.864793] rpc_fill_super+0x327/0xae0 [ 30.868753] ? cap_capable+0x1b5/0x230 [ 30.872626] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 30.877807] ? security_capable+0x8e/0xc0 [ 30.881943] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 30.887114] ? ns_capable_common+0xcf/0x160 [ 30.891420] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 30.896593] mount_ns+0xc4/0x190 [ 30.900213] rpc_mount+0x9e/0xd0 [ 30.903568] mount_fs+0x66/0x2d0 [ 30.906923] vfs_kern_mount.part.26+0xc6/0x4a0 [ 30.911489] ? may_umount+0xa0/0xa0 [ 30.915099] ? _raw_read_unlock+0x22/0x30 [ 30.919230] ? __get_fs_type+0x8a/0xc0 [ 30.923107] do_mount+0xea4/0x2bb0 [ 30.926628] ? __might_fault+0x110/0x1d0 [ 30.930680] ? copy_mount_string+0x40/0x40 [ 30.934898] ? check_same_owner+0x320/0x320 [ 30.939201] ? __check_object_size+0x8b/0x530 [ 30.943689] ? __might_sleep+0x95/0x190 [ 30.947657] ? kasan_check_write+0x14/0x20 [ 30.951874] ? _copy_from_user+0x99/0x110 [ 30.956010] ? memdup_user+0x5e/0x90 [ 30.959709] ? copy_mount_options+0x1f7/0x2e0 [ 30.964199] SyS_mount+0xab/0x120 [ 30.967639] ? copy_mnt_ns+0xb30/0xb30 [ 30.971514] do_syscall_64+0x281/0x940 [ 30.975382] ? __do_page_fault+0xc90/0xc90 [ 30.979599] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.984337] ? syscall_return_slowpath+0x550/0x550 [ 30.989251] ? syscall_return_slowpath+0x2ac/0x550 [ 30.994164] ? prepare_exit_to_usermode+0x350/0x350 [ 30.999169] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 31.004525] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.009361] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 31.014532] RIP: 0033:0x442b59 [ 31.017702] RSP: 002b:00007ffda9f33e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 31.025389] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442b59 [ 31.032638] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 31.039886] RBP: 00007ffda9f34710 R08: 0000000000000000 R09: 0000000300000000 [ 31.047312] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 31.054562] R13: 0000000000000004 R14: 0000000000001380 R15: 00007ffda9f33fa8 [ 31.061845] CPU: 1 PID: 4446 Comm: syzkaller083402 Not tainted 4.16.0-rc6+ #40 [ 31.069204] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.078637] Call Trace: [ 31.081224] dump_stack+0x194/0x24d [ 31.084852] ? arch_local_irq_restore+0x53/0x53 executing program [ 31.089520] ? trace_hardirqs_off+0x10/0x10 [ 31.093837] ? register_shrinker+0x10e/0x2d0 [ 31.098236] ? sget_userns+0xbbf/0xe40 [ 31.102123] ? mount_ns+0x6d/0x190 [ 31.102567] FAULT_INJECTION: forcing a failure. [ 31.102567] name failslab, interval 1, probability 0, space 0, times 0 [ 31.105663] should_fail+0x8c0/0xa40 [ 31.105674] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 31.105687] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 31.131302] ? find_held_lock+0x35/0x1d0 [ 31.135359] ? register_shrinker+0x230/0x2d0 [ 31.139767] ? find_held_lock+0x35/0x1d0 [ 31.143818] ? __lock_is_held+0xb6/0x140 [ 31.147882] ? check_same_owner+0x320/0x320 [ 31.152187] ? trace_hardirqs_off+0x10/0x10 [ 31.156492] ? rcu_note_context_switch+0x710/0x710 [ 31.161403] ? register_shrinker+0x10e/0x2d0 [ 31.165813] should_failslab+0xec/0x120 [ 31.169771] kmem_cache_alloc+0x47/0x760 [ 31.173816] ? find_held_lock+0x35/0x1d0 [ 31.177870] ? rpc_i_callback+0x30/0x30 [ 31.181828] rpc_alloc_inode+0x1a/0x20 [ 31.185700] alloc_inode+0x65/0x180 [ 31.189310] new_inode_pseudo+0x69/0x190 [ 31.193354] ? prune_icache_sb+0x1a0/0x1a0 [ 31.197588] ? __lock_is_held+0xb6/0x140 [ 31.201636] new_inode+0x1c/0x40 [ 31.204986] rpc_get_inode+0x20/0x1e0 [ 31.208782] rpc_fill_super+0x327/0xae0 [ 31.212744] ? cap_capable+0x1b5/0x230 [ 31.216614] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 31.221803] ? security_capable+0x8e/0xc0 [ 31.225937] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 31.231106] ? ns_capable_common+0xcf/0x160 [ 31.235413] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 31.240581] mount_ns+0xc4/0x190 [ 31.243939] rpc_mount+0x9e/0xd0 [ 31.247302] mount_fs+0x66/0x2d0 [ 31.250661] vfs_kern_mount.part.26+0xc6/0x4a0 [ 31.255255] ? may_umount+0xa0/0xa0 [ 31.258879] ? _raw_read_unlock+0x22/0x30 [ 31.263008] ? __get_fs_type+0x8a/0xc0 [ 31.266886] do_mount+0xea4/0x2bb0 [ 31.270405] ? __might_fault+0x110/0x1d0 [ 31.274457] ? copy_mount_string+0x40/0x40 [ 31.278670] ? check_same_owner+0x320/0x320 [ 31.282974] ? __check_object_size+0x8b/0x530 [ 31.287462] ? __might_sleep+0x95/0x190 [ 31.291426] ? kasan_check_write+0x14/0x20 [ 31.295641] ? _copy_from_user+0x99/0x110 [ 31.299775] ? memdup_user+0x5e/0x90 [ 31.303468] ? copy_mount_options+0x1f7/0x2e0 [ 31.307950] SyS_mount+0xab/0x120 [ 31.311385] ? copy_mnt_ns+0xb30/0xb30 [ 31.315258] do_syscall_64+0x281/0x940 [ 31.319124] ? __do_page_fault+0xc90/0xc90 [ 31.323349] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 31.328108] ? syscall_return_slowpath+0x550/0x550 [ 31.333042] ? syscall_return_slowpath+0x2ac/0x550 [ 31.337968] ? prepare_exit_to_usermode+0x350/0x350 [ 31.342967] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 31.348318] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.353152] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 31.358348] RIP: 0033:0x442b59 [ 31.361536] RSP: 002b:00007ffda9f33e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 31.369226] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442b59 [ 31.376481] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 31.383732] RBP: 00007ffda9f34710 R08: 0000000000000000 R09: 0000000300000000 executing program [ 31.390980] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 31.398235] R13: 0000000000000004 R14: 0000000000001380 R15: 00007ffda9f33fa8 [ 31.405515] CPU: 0 PID: 4448 Comm: syzkaller083402 Not tainted 4.16.0-rc6+ #40 [ 31.412872] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.417616] FAULT_INJECTION: forcing a failure. [ 31.417616] name failslab, interval 1, probability 0, space 0, times 0 [ 31.422218] Call Trace: [ 31.422233] dump_stack+0x194/0x24d [ 31.422249] ? arch_local_irq_restore+0x53/0x53 [ 31.422260] ? trace_hardirqs_off+0x10/0x10 [ 31.422269] ? register_shrinker+0x10e/0x2d0 [ 31.422280] ? sget_userns+0xbbf/0xe40 [ 31.456757] ? mount_ns+0x6d/0x190 [ 31.460289] should_fail+0x8c0/0xa40 [ 31.463982] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 31.469157] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 31.474239] ? find_held_lock+0x35/0x1d0 [ 31.478293] ? register_shrinker+0x230/0x2d0 [ 31.482689] ? find_held_lock+0x35/0x1d0 [ 31.486743] ? __lock_is_held+0xb6/0x140 [ 31.490804] ? check_same_owner+0x320/0x320 [ 31.495102] ? trace_hardirqs_off+0x10/0x10 [ 31.499407] ? rcu_note_context_switch+0x710/0x710 [ 31.504317] ? register_shrinker+0x10e/0x2d0 [ 31.508721] should_failslab+0xec/0x120 [ 31.512678] kmem_cache_alloc+0x47/0x760 [ 31.516720] ? find_held_lock+0x35/0x1d0 [ 31.520773] ? rpc_i_callback+0x30/0x30 [ 31.524736] rpc_alloc_inode+0x1a/0x20 [ 31.528605] alloc_inode+0x65/0x180 [ 31.532213] new_inode_pseudo+0x69/0x190 [ 31.536256] ? prune_icache_sb+0x1a0/0x1a0 [ 31.540476] ? __lock_is_held+0xb6/0x140 [ 31.544525] new_inode+0x1c/0x40 [ 31.547876] rpc_get_inode+0x20/0x1e0 [ 31.551658] rpc_fill_super+0x327/0xae0 [ 31.555624] ? cap_capable+0x1b5/0x230 [ 31.559495] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 31.564670] ? security_capable+0x8e/0xc0 [ 31.569236] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 31.574406] ? ns_capable_common+0xcf/0x160 [ 31.578717] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 31.583886] mount_ns+0xc4/0x190 [ 31.587239] rpc_mount+0x9e/0xd0 [ 31.590591] mount_fs+0x66/0x2d0 [ 31.593944] vfs_kern_mount.part.26+0xc6/0x4a0 [ 31.598514] ? may_umount+0xa0/0xa0 [ 31.602122] ? _raw_read_unlock+0x22/0x30 [ 31.606252] ? __get_fs_type+0x8a/0xc0 [ 31.610129] do_mount+0xea4/0x2bb0 [ 31.613648] ? __might_fault+0x110/0x1d0 [ 31.617706] ? copy_mount_string+0x40/0x40 [ 31.621928] ? check_same_owner+0x320/0x320 [ 31.626231] ? __check_object_size+0x8b/0x530 [ 31.630721] ? __might_sleep+0x95/0x190 [ 31.634685] ? kasan_check_write+0x14/0x20 [ 31.638900] ? _copy_from_user+0x99/0x110 [ 31.643036] ? memdup_user+0x5e/0x90 [ 31.646729] ? copy_mount_options+0x1f7/0x2e0 [ 31.651647] SyS_mount+0xab/0x120 [ 31.655080] ? copy_mnt_ns+0xb30/0xb30 [ 31.658955] do_syscall_64+0x281/0x940 [ 31.662824] ? __do_page_fault+0xc90/0xc90 [ 31.667044] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 31.671784] ? syscall_return_slowpath+0x550/0x550 [ 31.676703] ? syscall_return_slowpath+0x2ac/0x550 [ 31.681622] ? prepare_exit_to_usermode+0x350/0x350 [ 31.686623] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 31.691983] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.696823] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 31.701994] RIP: 0033:0x442b59 [ 31.705165] RSP: 002b:00007ffda9f33e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 31.712857] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442b59 [ 31.720111] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 31.727361] RBP: 00007ffda9f34710 R08: 0000000000000000 R09: 0000000000000000 [ 31.734612] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 31.741864] R13: 0000000000000004 R14: 0000000000000000 R15: 00007ffda9f33fa8 [ 31.749146] CPU: 1 PID: 4449 Comm: syzkaller083402 Not tainted 4.16.0-rc6+ #40 [ 31.756497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.765846] Call Trace: [ 31.768436] dump_stack+0x194/0x24d [ 31.772059] ? arch_local_irq_restore+0x53/0x53 [ 31.776707] ? trace_hardirqs_off+0x10/0x10 [ 31.781012] ? register_shrinker+0x10e/0x2d0 [ 31.785398] ? sget_userns+0xbbf/0xe40 [ 31.789270] ? mount_ns+0x6d/0x190 [ 31.792965] should_fail+0x8c0/0xa40 [ 31.796652] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 31.801817] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 31.806895] ? find_held_lock+0x35/0x1d0 [ 31.810938] ? register_shrinker+0x230/0x2d0 [ 31.815415] ? find_held_lock+0x35/0x1d0 [ 31.819454] ? __lock_is_held+0xb6/0x140 [ 31.823504] ? check_same_owner+0x320/0x320 [ 31.827799] ? trace_hardirqs_off+0x10/0x10 [ 31.832110] ? rcu_note_context_switch+0x710/0x710 [ 31.837020] ? register_shrinker+0x10e/0x2d0 [ 31.841416] should_failslab+0xec/0x120 [ 31.845366] kmem_cache_alloc+0x47/0x760 [ 31.849409] ? find_held_lock+0x35/0x1d0 [ 31.853449] ? rpc_i_callback+0x30/0x30 [ 31.857398] rpc_alloc_inode+0x1a/0x20 [ 31.861259] alloc_inode+0x65/0x180 [ 31.864858] new_inode_pseudo+0x69/0x190 [ 31.869152] ? prune_icache_sb+0x1a0/0x1a0 [ 31.873362] ? __lock_is_held+0xb6/0x140 [ 31.877407] new_inode+0x1c/0x40 [ 31.880750] rpc_get_inode+0x20/0x1e0 [ 31.884552] rpc_fill_super+0x327/0xae0 [ 31.888509] ? cap_capable+0x1b5/0x230 [ 31.892372] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 31.897542] ? security_capable+0x8e/0xc0 [ 31.901667] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 31.906830] ? ns_capable_common+0xcf/0x160 [ 31.911131] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 31.916296] mount_ns+0xc4/0x190 [ 31.919649] rpc_mount+0x9e/0xd0 [ 31.922992] mount_fs+0x66/0x2d0 [ 31.926342] vfs_kern_mount.part.26+0xc6/0x4a0 [ 31.930900] ? may_umount+0xa0/0xa0 [ 31.934501] ? _raw_read_unlock+0x22/0x30 [ 31.938641] ? __get_fs_type+0x8a/0xc0 [ 31.942512] do_mount+0xea4/0x2bb0 [ 31.946029] ? __might_fault+0x110/0x1d0 [ 31.950072] ? copy_mount_string+0x40/0x40 [ 31.954565] ? check_same_owner+0x320/0x320 [ 31.959667] ? __check_object_size+0x8b/0x530 [ 31.964151] ? __might_sleep+0x95/0x190 [ 31.968106] ? kasan_check_write+0x14/0x20 [ 31.972313] ? _copy_from_user+0x99/0x110 [ 31.976443] ? memdup_user+0x5e/0x90 [ 31.980132] ? copy_mount_options+0x1f7/0x2e0 [ 31.984606] SyS_mount+0xab/0x120 [ 31.988036] ? copy_mnt_ns+0xb30/0xb30 [ 31.991909] do_syscall_64+0x281/0x940 [ 31.995769] ? __do_page_fault+0xc90/0xc90 [ 31.999975] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.004705] ? syscall_return_slowpath+0x550/0x550 [ 32.009614] ? syscall_return_slowpath+0x2ac/0x550 [ 32.014524] ? prepare_exit_to_usermode+0x350/0x350 [ 32.019515] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 32.024857] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.029684] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 32.034845] RIP: 0033:0x442b59 [ 32.038011] RSP: 002b:00007ffda9f33e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 executing program [ 32.045699] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442b59 [ 32.052948] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 32.060199] RBP: 00007ffda9f34710 R08: 0000000000000000 R09: 0000000300000000 [ 32.067444] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 32.074691] R13: 0000000000000004 R14: 0000000000001380 R15: 00007ffda9f33fa8 [ 32.091197] ------------[ cut here ]------------ [ 32.096053] refcount_t: increment on 0; use-after-free. [ 32.099703] FAULT_INJECTION: forcing a failure. [ 32.099703] name failslab, interval 1, probability 0, space 0, times 0 [ 32.101548] WARNING: CPU: 0 PID: 4427 at lib/refcount.c:153 refcount_inc+0x47/0x50 [ 32.112653] CPU: 1 PID: 4455 Comm: syzkaller083402 Not tainted 4.16.0-rc6+ #40 [ 32.121337] Kernel panic - not syncing: panic_on_warn set ... [ 32.121337] [ 32.128668] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.128676] Call Trace: [ 32.147898] dump_stack+0x194/0x24d [ 32.151506] ? arch_local_irq_restore+0x53/0x53 [ 32.156158] ? find_held_lock+0x35/0x1d0 [ 32.160210] should_fail+0x8c0/0xa40 [ 32.163906] ? __list_lru_init+0x352/0x750 [ 32.168122] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 32.173205] ? trace_hardirqs_off+0x10/0x10 [ 32.177504] ? find_next_zero_bit+0xe3/0x110 [ 32.181899] ? trace_hardirqs_off+0x10/0x10 [ 32.186208] ? find_held_lock+0x35/0x1d0 [ 32.190255] ? __lock_is_held+0xb6/0x140 [ 32.194329] ? check_same_owner+0x320/0x320 [ 32.198627] ? lock_downgrade+0x980/0x980 [ 32.202766] ? rcu_note_context_switch+0x710/0x710 [ 32.207676] ? find_held_lock+0x35/0x1d0 [ 32.211724] should_failslab+0xec/0x120 [ 32.215680] __kmalloc+0x63/0x760 [ 32.219112] ? lock_downgrade+0x980/0x980 [ 32.223248] ? register_shrinker+0x10e/0x2d0 [ 32.227639] ? trace_event_raw_event_module_request+0x320/0x320 [ 32.233687] register_shrinker+0x10e/0x2d0 [ 32.237904] ? __bpf_trace_mm_vmscan_wakeup_kswapd+0x40/0x40 [ 32.243685] ? memcpy+0x45/0x50 [ 32.246951] sget_userns+0xbbf/0xe40 [ 32.250645] ? set_anon_super+0x20/0x20 [ 32.254612] ? put_filp+0x90/0x90 [ 32.258048] ? destroy_unused_super.part.6+0xd0/0xd0 [ 32.263132] ? path_lookupat+0x238/0xba0 [ 32.267177] ? mnt_free_id.isra.21+0x50/0x50 [ 32.271575] ? trace_hardirqs_off+0x10/0x10 [ 32.275877] ? putname+0xee/0x130 [ 32.279315] ? cap_capable+0x1b5/0x230 [ 32.283188] ? security_capable+0x8e/0xc0 [ 32.287324] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 32.292490] ? ns_capable_common+0xcf/0x160 [ 32.296796] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 32.301964] mount_ns+0x6d/0x190 [ 32.305323] rpc_mount+0x9e/0xd0 [ 32.308676] mount_fs+0x66/0x2d0 [ 32.312030] vfs_kern_mount.part.26+0xc6/0x4a0 [ 32.316597] ? may_umount+0xa0/0xa0 [ 32.320204] ? _raw_read_unlock+0x22/0x30 [ 32.324332] ? __get_fs_type+0x8a/0xc0 [ 32.328211] do_mount+0xea4/0x2bb0 [ 32.331729] ? __might_fault+0x110/0x1d0 [ 32.335777] ? copy_mount_string+0x40/0x40 [ 32.339999] ? check_same_owner+0x320/0x320 [ 32.344298] ? __check_object_size+0x8b/0x530 [ 32.348782] ? __might_sleep+0x95/0x190 [ 32.352748] ? kasan_check_write+0x14/0x20 [ 32.356958] ? _copy_from_user+0x99/0x110 [ 32.361089] ? memdup_user+0x5e/0x90 [ 32.364786] ? copy_mount_options+0x1f7/0x2e0 [ 32.369265] SyS_mount+0xab/0x120 [ 32.372695] ? copy_mnt_ns+0xb30/0xb30 [ 32.376566] do_syscall_64+0x281/0x940 [ 32.380518] ? __do_page_fault+0xc90/0xc90 [ 32.384730] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.389467] ? syscall_return_slowpath+0x550/0x550 [ 32.394380] ? syscall_return_slowpath+0x2ac/0x550 [ 32.399290] ? prepare_exit_to_usermode+0x350/0x350 [ 32.404286] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 32.409635] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.414465] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 32.419631] RIP: 0033:0x442b59 [ 32.422797] RSP: 002b:00007ffda9f33e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 32.430570] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442b59 [ 32.437828] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 32.445075] RBP: 00007ffda9f34710 R08: 0000000000000000 R09: 0000000300000000 [ 32.452320] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 32.459569] R13: 0000000000000004 R14: 0000000000001380 R15: 00007ffda9f33fa8 [ 32.466855] CPU: 0 PID: 4427 Comm: syzkaller083402 Not tainted 4.16.0-rc6+ #40 [ 32.469968] ------------[ cut here ]------------ [ 32.474203] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.474207] Call Trace: [ 32.474223] dump_stack+0x194/0x24d [ 32.474236] ? arch_local_irq_restore+0x53/0x53 [ 32.474253] ? vsnprintf+0x1ed/0x1900 [ 32.474268] panic+0x1e4/0x41c [ 32.479029] refcount_t: underflow; use-after-free. [ 32.488354] ? refcount_error_report+0x214/0x214 [ 32.488365] ? show_regs_print_info+0x18/0x18 [ 32.488385] ? __warn+0x1c1/0x200 [ 32.491056] WARNING: CPU: 1 PID: 4431 at lib/refcount.c:187 refcount_sub_and_test+0x167/0x1b0 [ 32.494541] ? refcount_inc+0x47/0x50 [ 32.499172] Modules linked in: [ 32.502945] __warn+0x1dc/0x200 [ 32.511007] ? refcount_inc+0x47/0x50 [ 32.515729] CPU: 1 PID: 4431 Comm: syzkaller083402 Not tainted 4.16.0-rc6+ #40 [ 32.520199] report_bug+0x1f4/0x2b0 [ 32.523614] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.523623] RIP: 0010:refcount_sub_and_test+0x167/0x1b0 [ 32.532269] fixup_bug.part.11+0x37/0x80 [ 32.536027] RSP: 0018:ffff8801b15ff728 EFLAGS: 00010286 [ 32.539197] do_error_trap+0x2d7/0x3e0 [ 32.542439] RAX: dffffc0000000008 RBX: 0000000000000000 RCX: ffffffff815ba4be [ 32.542445] RDX: 0000000000000000 RSI: 1ffff100362bfe95 RDI: 1ffff100362bfe6a [ 32.546219] ? vprintk_default+0x28/0x30 [ 32.553545] RBP: ffff8801b15ff7b8 R08: 0000000000000000 R09: 0000000000000001 [ 32.553551] R10: ffff8801b15ff850 R11: 0000000000000000 R12: 1ffff100362bfee6 [ 32.557153] ? math_error+0x400/0x400 [ 32.566471] R13: 00000000ffffffff R14: 0000000000000001 R15: ffff8801b20a21c4 [ 32.571805] ? printk+0xaa/0xca [ 32.575834] FS: 0000000000c35880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 32.581205] ? show_regs_print_info+0x18/0x18 [ 32.585056] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.592313] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.599542] CR2: 00007ffda9f34710 CR3: 00000001b1611002 CR4: 00000000001606e0 [ 32.603582] do_invalid_op+0x1b/0x20 [ 32.610812] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.618055] invalid_op+0x1b/0x40 [ 32.621832] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.629084] RIP: 0010:refcount_inc+0x47/0x50 [ 32.632328] Call Trace: [ 32.640520] RSP: 0018:ffff8801b1037860 EFLAGS: 00010286 [ 32.644995] ? refcount_inc+0x50/0x50 [ 32.650844] RAX: dffffc0000000008 RBX: ffff8801ac0c0184 RCX: ffffffff815ba4be [ 32.655659] ? task_active_pid_ns+0xd0/0xd0 [ 32.662894] RDX: 0000000000000000 RSI: 1ffff10036206ebc RDI: 1ffff10036206e91 [ 32.666583] ? trace_hardirqs_off+0x10/0x10 [ 32.673821] RBP: ffff8801b1037868 R08: 0000000000000000 R09: 0000000000000000 [ 32.677250] ? tcp_fastopen_active_disable_ofo_check+0x532/0x870 [ 32.684487] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801b1037af8 [ 32.688875] refcount_dec_and_test+0x1a/0x20 [ 32.691419] R13: ffff8801ac9c1513 R14: ffff8801ac0c0180 R15: ffff8801ac9c1501 [ 32.691440] ? vprintk_func+0x5e/0xc0 [ 32.696770] __sk_destruct+0x560/0x920 [ 32.700546] sk_alloc+0x3f9/0x1440 [ 32.707783] ? sk_wait_data+0x610/0x610 [ 32.712078] ? sock_def_error_report+0x5e0/0x5e0 [ 32.719330] ? lock_downgrade+0x980/0x980 [ 32.723607] ? __raw_spin_lock_init+0x2d/0x100 [ 32.730856] ? lock_release+0xa40/0xa40 [ 32.736969] ? trace_hardirqs_off+0x10/0x10 [ 32.744211] ? __lock_is_held+0xb6/0x140 [ 32.748581] ? do_raw_write_unlock+0x290/0x290 [ 32.755844] ? netlink_has_listeners+0x2a0/0x430 [ 32.759601] ? trace_hardirqs_off+0x10/0x10 [ 32.763455] ? refcount_sub_and_test+0x115/0x1b0 [ 32.766963] ? __raw_spin_lock_init+0x1c/0x100 [ 32.770910] ? netlink_insert+0x350/0x350 [ 32.775637] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.779752] ? refcount_inc+0x50/0x50 [ 32.784311] ? find_held_lock+0x35/0x1d0 [ 32.788248] ? refcount_inc+0x50/0x50 [ 32.792550] ? inet_create+0x3fc/0xf50 [ 32.796573] sk_destruct+0x47/0x80 [ 32.801127] ? lock_downgrade+0x980/0x980 [ 32.805850] __sk_free+0xf1/0x2b0 [ 32.810142] ? lock_release+0xa40/0xa40 [ 32.814864] sk_free+0x2a/0x40 [ 32.819413] ? lock_downgrade+0x980/0x980 [ 32.823528] tcp_close+0x967/0x1190 [ 32.828538] inet_create+0x47c/0xf50 [ 32.832293] ? tcp_check_oom+0x500/0x500 [ 32.836335] ? ipip_gro_receive+0xf0/0xf0 [ 32.840102] ? ip_mc_drop_socket+0x1ce/0x230 [ 32.843964] ? __lock_is_held+0xb6/0x140 [ 32.847475] inet_release+0xed/0x1c0 [ 32.851614] __sock_create+0x4d4/0x850 [ 32.855016] sock_release+0x8d/0x1e0 [ 32.858966] ? kernel_sock_ip_overhead+0x4c0/0x4c0 [ 32.862120] ? sock_alloc_file+0x560/0x560 [ 32.866249] ? user_path_create+0x40/0x40 [ 32.869836] sock_close+0x16/0x20 [ 32.873532] SyS_socket+0xeb/0x1d0 [ 32.877553] __fput+0x327/0x7e0 [ 32.881671] ? move_addr_to_kernel+0x60/0x60 [ 32.886056] ? fput+0x140/0x140 [ 32.890081] ? do_syscall_64+0xb7/0x940 [ 32.893774] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.897632] ? move_addr_to_kernel+0x60/0x60 [ 32.901323] ____fput+0x15/0x20 [ 32.906214] do_syscall_64+0x281/0x940 [ 32.910417] task_work_run+0x199/0x270 [ 32.914533] ? __do_page_fault+0xc90/0xc90 [ 32.917959] ? task_work_cancel+0x210/0x210 [ 32.921465] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.924713] ? __close_fd+0x222/0x360 [ 32.929093] ? syscall_return_slowpath+0x550/0x550 [ 32.932340] ? exit_to_usermode_loop+0x8c/0x2f0 [ 32.936287] ? syscall_return_slowpath+0x2ac/0x550 [ 32.940761] exit_to_usermode_loop+0x275/0x2f0 [ 32.945130] ? prepare_exit_to_usermode+0x350/0x350 [ 32.948382] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 32.952237] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 32.956097] ? do_syscall_64+0xb7/0x940 [ 32.960301] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.964593] do_syscall_64+0x6ec/0x940 [ 32.969320] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 32.973177] ? __do_page_fault+0xc90/0xc90 [ 32.978074] RIP: 0033:0x4455d7 [ 32.982710] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.987623] RSP: 002b:00007ffda9f33e68 EFLAGS: 00000206 [ 32.992181] ? syscall_return_slowpath+0x550/0x550 [ 32.997158] ORIG_RAX: 0000000000000029 [ 33.002668] ? syscall_return_slowpath+0x2ac/0x550 [ 33.007991] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004455d7 [ 33.007996] RDX: 0000000000000006 RSI: 0000000000000001 RDI: 0000000000000002 [ 33.011943] ? prepare_exit_to_usermode+0x350/0x350 [ 33.016743] RBP: 00007ffda9f33f80 R08: 0000000000000000 R09: 0000000000000001 [ 33.016749] R10: 0000000000000006 R11: 0000000000000206 R12: 0000000000000002 [ 33.020617] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 33.025767] R13: 0000000000000002 R14: 00000000000072a8 R15: 00007ffda9f33fa8 [ 33.103823] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.108654] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 33.113826] RIP: 0033:0x402880 [ 33.116993] RSP: 002b:00007ffda9f33e68 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 33.124676] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000402880 [ 33.131930] RDX: 00000000000000e0 RSI: 00007ffda9f34740 RDI: 0000000000000003 [ 33.139173] RBP: 00007ffda9f33f80 R08: 00007ffda9f33e8c R09: 0000000000000001 [ 33.146419] R10: 00007ffda9f33f80 R11: 0000000000000246 R12: 00000000006cf4c0 [ 33.153662] R13: 00000000006cee40 R14: 0000000000001380 R15: 00007ffda9f33fa8 [ 33.160927] Code: 5e 41 5f 5d c3 e8 ea 3a be fe 80 3d 20 f4 84 05 00 75 1a e8 dc 3a be fe 48 c7 c7 e0 78 e5 86 c6 05 0b f4 84 05 01 e8 89 46 8e fe <0f> 0b 31 db eb a3 e8 be 3a be fe 83 fb ff 0f 85 63 ff ff ff 31 [ 33.180093] ---[ end trace 749adbee70856166 ]--- [ 33.185366] Dumping ftrace buffer: [ 33.189027] (ftrace buffer empty) [ 33.192716] Kernel Offset: disabled [ 33.196319] Rebooting in 86400 seconds..