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 '10.128.10.9' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 28.429987] gfs2: fsid=_dev_input_mice: Trying to join cluster "lock_nolock", "_dev_input_mice" [ 28.435290] sysfs: cannot create duplicate filename '/fs/gfs2/_dev_input_mice' [ 28.439050] gfs2: fsid=_dev_input_mice: Now mounting FS... [ 28.446330] CPU: 1 PID: 4487 Comm: syzkaller551725 Not tainted 4.16.0-rc7+ #8 [ 28.446334] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.446337] Call Trace: [ 28.446350] dump_stack+0x194/0x24d [ 28.446359] ? arch_local_irq_restore+0x53/0x53 [ 28.446368] ? trace_hardirqs_on+0xd/0x10 [ 28.446378] ? sysfs_warn_dup+0x6c/0xa0 [ 28.446387] sysfs_warn_dup+0x83/0xa0 [ 28.446395] sysfs_create_dir_ns+0x178/0x1d0 [ 28.446404] kobject_add_internal+0x335/0xbc0 [ 28.446414] ? kobj_ns_type_registered+0x50/0x50 [ 28.446424] ? kfree_const+0x31/0x40 [ 28.446433] ? rcu_read_lock_sched_held+0x108/0x120 [ 28.446445] ? kfree+0x1f6/0x260 [ 28.459483] sysfs: cannot create duplicate filename '/fs/gfs2/_dev_input_mice' [ 28.468627] ? kfree_const+0x36/0x40 [ 28.468640] kobject_init_and_add+0xf9/0x150 [ 28.468649] ? kset_create_and_add+0x170/0x170 [ 28.468659] ? vsnprintf+0x1ed/0x1900 [ 28.468675] gfs2_sys_fs_add+0x1ff/0x580 [ 28.544623] ? recover_store+0x160/0x160 [ 28.548668] ? snprintf+0xc0/0xf0 [ 28.552103] ? vsprintf+0x40/0x40 [ 28.555537] ? set_blocksize+0x1f1/0x260 [ 28.559581] ? memcpy+0x45/0x50 [ 28.562842] fill_super+0x86f/0x1d70 [ 28.566534] ? vsnprintf+0x1ed/0x1900 [ 28.570316] ? gfs2_online_uevent+0x2a0/0x2a0 [ 28.574788] ? memcpy+0x45/0x50 [ 28.578049] ? match_strlcpy+0xbc/0xf0 [ 28.581919] ? snprintf+0xc0/0xf0 [ 28.585350] ? vsprintf+0x40/0x40 [ 28.588782] ? ns_capable_common+0xcf/0x160 [ 28.593083] ? set_blocksize+0x1f1/0x260 [ 28.597126] gfs2_mount+0x587/0x6e0 [ 28.600732] ? gfs2_mount+0x587/0x6e0 [ 28.604512] ? fill_super+0x1d70/0x1d70 [ 28.608483] mount_fs+0x66/0x2d0 [ 28.611831] vfs_kern_mount.part.26+0xc6/0x4a0 [ 28.616395] ? may_umount+0xa0/0xa0 [ 28.620001] ? _raw_read_unlock+0x22/0x30 [ 28.624130] ? __get_fs_type+0x8a/0xc0 [ 28.628004] do_mount+0xea4/0x2bb0 [ 28.631528] ? copy_mount_string+0x40/0x40 [ 28.635741] ? rcu_pm_notify+0xc0/0xc0 [ 28.639616] ? copy_mount_options+0x5f/0x2e0 [ 28.644002] ? rcu_read_lock_sched_held+0x108/0x120 [ 28.648997] ? kmem_cache_alloc_trace+0x459/0x740 [ 28.653820] ? kasan_check_write+0x14/0x20 [ 28.658036] ? copy_mount_options+0x1f7/0x2e0 [ 28.662511] SyS_mount+0xab/0x120 [ 28.665941] ? copy_mnt_ns+0xb30/0xb30 [ 28.669810] do_syscall_64+0x281/0x940 [ 28.673676] ? vmalloc_sync_all+0x30/0x30 [ 28.677802] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 28.682540] ? syscall_return_slowpath+0x550/0x550 [ 28.687451] ? syscall_return_slowpath+0x2ac/0x550 [ 28.692359] ? prepare_exit_to_usermode+0x350/0x350 [ 28.697354] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 28.702702] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.707531] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 28.712697] RIP: 0033:0x4433aa [ 28.715864] RSP: 002b:00007fff38d29ab8 EFLAGS: 00000213 ORIG_RAX: 00000000000000a5 [ 28.723551] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004433aa [ 28.730801] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007fff38d29ad0 [ 28.738048] RBP: 0000000020000570 R08: 0000000020000580 R09: 000000000000000a [ 28.745296] R10: 0000000001000080 R11: 0000000000000213 R12: 666f3d61746f7571 [ 28.752545] R13: 65766f6365726f6e R14: 0030656c69662f2e R15: 0000000000000004 [ 28.759811] CPU: 0 PID: 4483 Comm: syzkaller551725 Not tainted 4.16.0-rc7+ #8 [ 28.759868] ------------[ cut here ]------------ [ 28.767064] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.767067] Call Trace: [ 28.767078] dump_stack+0x194/0x24d [ 28.767089] ? arch_local_irq_restore+0x53/0x53 [ 28.771825] kobject_add_internal failed for _dev_input_mice with -EEXIST, don't try to register things with the same name in the same directory. [ 28.781142] ? trace_hardirqs_on+0xd/0x10 [ 28.781152] ? sysfs_warn_dup+0x6c/0xa0 [ 28.781162] sysfs_warn_dup+0x83/0xa0 [ 28.783929] WARNING: CPU: 1 PID: 4487 at lib/kobject.c:238 kobject_add_internal+0x8d4/0xbc0 [ 28.787313] sysfs_create_dir_ns+0x178/0x1d0 [ 28.791945] Kernel panic - not syncing: panic_on_warn set ... [ 28.791945] [ 28.805007] kobject_add_internal+0x335/0xbc0 [ 28.841462] ? kobj_ns_type_registered+0x50/0x50 [ 28.846195] ? kfree_const+0x31/0x40 [ 28.849884] ? rcu_read_lock_sched_held+0x108/0x120 [ 28.854877] ? kfree+0x1f6/0x260 [ 28.858223] ? kfree_const+0x36/0x40 [ 28.861914] kobject_init_and_add+0xf9/0x150 [ 28.866301] ? kset_create_and_add+0x170/0x170 [ 28.870860] ? vsnprintf+0x1ed/0x1900 [ 28.874651] gfs2_sys_fs_add+0x1ff/0x580 [ 28.878692] ? recover_store+0x160/0x160 [ 28.882733] ? snprintf+0xc0/0xf0 [ 28.886165] ? vsprintf+0x40/0x40 [ 28.889598] ? set_blocksize+0x1f1/0x260 [ 28.893637] ? memcpy+0x45/0x50 [ 28.896900] fill_super+0x86f/0x1d70 [ 28.900590] ? vsnprintf+0x1ed/0x1900 [ 28.904371] ? gfs2_online_uevent+0x2a0/0x2a0 [ 28.908841] ? memcpy+0x45/0x50 [ 28.912101] ? match_strlcpy+0xbc/0xf0 [ 28.915966] ? snprintf+0xc0/0xf0 [ 28.919395] ? vsprintf+0x40/0x40 [ 28.922826] ? ns_capable_common+0xcf/0x160 [ 28.927124] ? set_blocksize+0x1f1/0x260 [ 28.931166] gfs2_mount+0x587/0x6e0 [ 28.934767] ? gfs2_mount+0x587/0x6e0 [ 28.938546] ? fill_super+0x1d70/0x1d70 [ 28.942510] mount_fs+0x66/0x2d0 [ 28.945855] vfs_kern_mount.part.26+0xc6/0x4a0 [ 28.950415] ? may_umount+0xa0/0xa0 [ 28.954018] ? _raw_read_unlock+0x22/0x30 [ 28.958144] ? __get_fs_type+0x8a/0xc0 [ 28.962008] do_mount+0xea4/0x2bb0 [ 28.965530] ? copy_mount_string+0x40/0x40 [ 28.969745] ? rcu_pm_notify+0xc0/0xc0 [ 28.973617] ? copy_mount_options+0x5f/0x2e0 [ 28.978004] ? rcu_read_lock_sched_held+0x108/0x120 [ 28.982997] ? kmem_cache_alloc_trace+0x459/0x740 [ 28.987815] ? kasan_check_write+0x14/0x20 [ 28.992029] ? copy_mount_options+0x1f7/0x2e0 [ 28.996504] SyS_mount+0xab/0x120 [ 28.999932] ? copy_mnt_ns+0xb30/0xb30 [ 29.003797] do_syscall_64+0x281/0x940 [ 29.007665] ? vmalloc_sync_all+0x30/0x30 [ 29.011789] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.016520] ? syscall_return_slowpath+0x550/0x550 [ 29.021426] ? syscall_return_slowpath+0x2ac/0x550 [ 29.026332] ? prepare_exit_to_usermode+0x350/0x350 [ 29.031325] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 29.036668] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.041993] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 29.047160] RIP: 0033:0x4433aa [ 29.050325] RSP: 002b:00007fff38d29ab8 EFLAGS: 00000213 ORIG_RAX: 00000000000000a5 [ 29.058008] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004433aa [ 29.065253] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007fff38d29ad0 [ 29.072497] RBP: 0000000020000570 R08: 0000000020000580 R09: 000000000000000a [ 29.079740] R10: 0000000001000080 R11: 0000000000000213 R12: 666f3d61746f7571 [ 29.086987] R13: 65766f6365726f6e R14: 0030656c69662f2e R15: 0000000000000004 [ 29.094245] CPU: 1 PID: 4487 Comm: syzkaller551725 Not tainted 4.16.0-rc7+ #8 [ 29.094345] ------------[ cut here ]------------ [ 29.101497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.101500] Call Trace: [ 29.101511] dump_stack+0x194/0x24d [ 29.101520] ? arch_local_irq_restore+0x53/0x53 [ 29.101531] ? vsnprintf+0x1ed/0x1900 [ 29.106270] kobject_add_internal failed for _dev_input_mice with -EEXIST, don't try to register things with the same name in the same directory. [ 29.115582] panic+0x1e4/0x41c [ 29.115591] ? refcount_error_report+0x214/0x214 [ 29.115598] ? show_regs_print_info+0x18/0x18 [ 29.115606] ? vprintk_emit+0xa5f/0xb90 [ 29.118377] WARNING: CPU: 0 PID: 4483 at lib/kobject.c:238 kobject_add_internal+0x8d4/0xbc0 [ 29.121759] ? __warn+0x1c1/0x200 [ 29.126387] Modules linked in: [ 29.130164] ? kobject_add_internal+0x8d4/0xbc0 [ 29.143218] CPU: 0 PID: 4483 Comm: syzkaller551725 Not tainted 4.16.0-rc7+ #8 [ 29.146376] __warn+0x1dc/0x200 [ 29.151094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.155563] ? kobject_add_internal+0x8d4/0xbc0 [ 29.159504] RIP: 0010:kobject_add_internal+0x8d4/0xbc0 [ 29.167961] report_bug+0x1f4/0x2b0 [ 29.171378] RSP: 0018:ffff8801ad0674a0 EFLAGS: 00010282 [ 29.174547] fixup_bug.part.10+0x37/0x80 [ 29.179181] RAX: dffffc0000000008 RBX: ffff8801ad109190 RCX: ffffffff815b193e [ 29.186419] do_error_trap+0x2d7/0x3e0 [ 29.189664] RDX: 0000000000000000 RSI: 1ffff10035a0ce44 RDI: 1ffff10035a0ce19 [ 29.189670] RBP: ffff8801ad067598 R08: 1ffff10035a0cddb R09: 0000000000000001 [ 29.198993] ? vprintk_default+0x28/0x30 [ 29.203624] R10: ffff8801ad067260 R11: 0000000000000000 R12: 1ffff10035a0ce9a [ 29.203630] R13: 00000000ffffffef R14: ffff8801d3980748 R15: 1ffff10035a0ce9e [ 29.208874] ? math_error+0x400/0x400 [ 29.212465] FS: 00000000017dc880(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 [ 29.217795] ? printk+0xaa/0xca [ 29.221818] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.221823] CR2: 00000000004b5a38 CR3: 00000001ae2ab005 CR4: 00000000001606f0 [ 29.229063] ? show_regs_print_info+0x18/0x18 [ 29.232914] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.240159] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.247389] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.247393] Call Trace: [ 29.251425] do_invalid_op+0x1b/0x20 [ 29.258668] ? kobj_ns_type_registered+0x50/0x50 [ 29.265903] invalid_op+0x1b/0x40 [ 29.269680] ? kfree_const+0x31/0x40 [ 29.277873] RIP: 0010:kobject_add_internal+0x8d4/0xbc0 [ 29.281119] ? rcu_read_lock_sched_held+0x108/0x120 [ 29.286966] RSP: 0018:ffff8801ad0474a0 EFLAGS: 00010282 [ 29.294213] ? kfree+0x1f6/0x260 [ 29.298670] RAX: dffffc0000000008 RBX: ffff8801ad1f1150 RCX: ffffffff815b193e [ 29.298676] RDX: 0000000000000000 RSI: 1ffff10035a08e44 RDI: 1ffff10035a08e19 [ 29.305918] ? kfree_const+0x36/0x40 [ 29.310724] RBP: ffff8801ad047598 R08: 1ffff10035a08ddb R09: 0000000000000000 [ 29.310730] R10: ffff8801ad047260 R11: 0000000000000000 R12: 1ffff10035a08e9a [ 29.317973] kobject_init_and_add+0xf9/0x150 [ 29.320520] R13: 00000000ffffffef R14: ffff8801d3980748 R15: 1ffff10035a08e9e [ 29.320532] ? vprintk_func+0x5e/0xc0 [ 29.324208] ? kset_create_and_add+0x170/0x170 [ 29.328934] ? kobj_ns_type_registered+0x50/0x50 [ 29.332350] ? vsnprintf+0x1ed/0x1900 [ 29.336030] ? kfree_const+0x31/0x40 [ 29.341277] gfs2_sys_fs_add+0x1ff/0x580 [ 29.346257] ? rcu_read_lock_sched_held+0x108/0x120 [ 29.351590] ? recover_store+0x160/0x160 [ 29.354922] ? kfree+0x1f6/0x260 [ 29.362161] ? snprintf+0xc0/0xf0 [ 29.369400] ? kfree_const+0x36/0x40 [ 29.373080] ? vsprintf+0x40/0x40 [ 29.373090] ? set_blocksize+0x1f1/0x260 [ 29.380331] kobject_init_and_add+0xf9/0x150 [ 29.387568] ? memcpy+0x45/0x50 [ 29.391943] ? kset_create_and_add+0x170/0x170 [ 29.399185] fill_super+0x86f/0x1d70 [ 29.402951] ? vsnprintf+0x1ed/0x1900 [ 29.407498] ? vsnprintf+0x1ed/0x1900 [ 29.412224] gfs2_sys_fs_add+0x1ff/0x580 [ 29.415990] ? gfs2_online_uevent+0x2a0/0x2a0 [ 29.419667] ? recover_store+0x160/0x160 [ 29.423695] ? memcpy+0x45/0x50 [ 29.428677] ? snprintf+0xc0/0xf0 [ 29.432707] ? match_strlcpy+0xbc/0xf0 [ 29.436039] ? vsprintf+0x40/0x40 [ 29.439463] ? snprintf+0xc0/0xf0 [ 29.443143] ? set_blocksize+0x1f1/0x260 [ 29.446564] ? vsprintf+0x40/0x40 [ 29.450594] ? memcpy+0x45/0x50 [ 29.454969] ? ns_capable_common+0xcf/0x160 [ 29.458217] fill_super+0x86f/0x1d70 [ 29.462765] ? set_blocksize+0x1f1/0x260 [ 29.466448] ? vsnprintf+0x1ed/0x1900 [ 29.470215] gfs2_mount+0x587/0x6e0 [ 29.473985] ? gfs2_online_uevent+0x2a0/0x2a0 [ 29.478010] ? gfs2_mount+0x587/0x6e0 [ 29.482472] ? memcpy+0x45/0x50 [ 29.486499] ? fill_super+0x1d70/0x1d70 [ 29.489746] ? match_strlcpy+0xbc/0xf0 [ 29.493183] mount_fs+0x66/0x2d0 [ 29.497023] ? snprintf+0xc0/0xf0 [ 29.500444] vfs_kern_mount.part.26+0xc6/0x4a0 [ 29.503864] ? vsprintf+0x40/0x40 [ 29.507892] ? may_umount+0xa0/0xa0 [ 29.511311] ? ns_capable_common+0xcf/0x160 [ 29.514561] ? _raw_read_unlock+0x22/0x30 [ 29.518848] ? set_blocksize+0x1f1/0x260 [ 29.522528] ? __get_fs_type+0x8a/0xc0 [ 29.526559] gfs2_mount+0x587/0x6e0 [ 29.530330] do_mount+0xea4/0x2bb0 [ 29.533923] ? gfs2_mount+0x587/0x6e0 [ 29.538386] ? copy_mount_string+0x40/0x40 [ 29.542154] ? fill_super+0x1d70/0x1d70 [ 29.545403] ? rcu_pm_notify+0xc0/0xc0 [ 29.549357] mount_fs+0x66/0x2d0 [ 29.553202] ? copy_mount_options+0x5f/0x2e0 [ 29.556536] vfs_kern_mount.part.26+0xc6/0x4a0 [ 29.559954] ? rcu_read_lock_sched_held+0x108/0x120 [ 29.564503] ? may_umount+0xa0/0xa0 [ 29.567923] ? kmem_cache_alloc_trace+0x459/0x740 [ 29.571516] ? _raw_read_unlock+0x22/0x30 [ 29.575803] ? kasan_check_write+0x14/0x20 [ 29.579918] ? __get_fs_type+0x8a/0xc0 [ 29.583949] ? copy_mount_options+0x1f7/0x2e0 [ 29.587803] do_mount+0xea4/0x2bb0 [ 29.591395] SyS_mount+0xab/0x120 [ 29.594905] ? copy_mount_string+0x40/0x40 [ 29.598668] ? copy_mnt_ns+0xb30/0xb30 [ 29.602871] ? rcu_pm_notify+0xc0/0xc0 [ 29.606813] do_syscall_64+0x281/0x940 [ 29.610670] ? copy_mount_options+0x5f/0x2e0 [ 29.614002] ? vmalloc_sync_all+0x30/0x30 [ 29.618378] ? rcu_read_lock_sched_held+0x108/0x120 [ 29.622930] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.627912] ? kmem_cache_alloc_trace+0x459/0x740 [ 29.631505] ? syscall_return_slowpath+0x550/0x550 [ 29.636316] ? kasan_check_write+0x14/0x20 [ 29.640430] ? syscall_return_slowpath+0x2ac/0x550 [ 29.644634] ? copy_mount_options+0x1f7/0x2e0 [ 29.648490] ? prepare_exit_to_usermode+0x350/0x350 [ 29.652951] SyS_mount+0xab/0x120 [ 29.656460] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 29.659877] ? copy_mnt_ns+0xb30/0xb30 [ 29.664080] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.667933] do_syscall_64+0x281/0x940 [ 29.671790] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 29.675644] ? vmalloc_sync_all+0x30/0x30 [ 29.680021] RIP: 0033:0x4433aa [ 29.684136] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.689118] RSP: 002b:00007fff38d29ab8 EFLAGS: 00000213 [ 29.693843] ? syscall_return_slowpath+0x550/0x550 [ 29.698650] ORIG_RAX: 00000000000000a5 [ 29.698656] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004433aa [ 29.703559] ? syscall_return_slowpath+0x2ac/0x550 [ 29.707758] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007fff38d29ad0 [ 29.712659] ? prepare_exit_to_usermode+0x350/0x350 [ 29.717118] RBP: 0000000020000570 R08: 0000000020000580 R09: 000000000000000a [ 29.722104] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 29.725522] R10: 0000000001000080 R11: 0000000000000213 R12: 666f3d61746f7571 [ 29.725528] R13: 65766f6365726f6e R14: 0030656c69662f2e R15: 0000000000000004 [ 29.730860] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.734715] Code: [ 29.739527] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 29.743378] 00 [ 29.748536] RIP: 0033:0x4433aa [ 29.752650] 00 [ 29.755807] RSP: 002b:00007fff38d29ab8 EFLAGS: 00000213 ORIG_RAX: 00000000000000a5 [ 29.760531] 00 [ 29.765861] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004433aa [ 29.765867] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007fff38d29ad0 [ 29.770760] 00 [ 29.774702] RBP: 0000000020000570 R08: 0000000020000580 R09: 000000000000000a [ 29.774708] R10: 0000000001000080 R11: 0000000000000213 R12: 666f3d61746f7571 [ 29.781944] fc [ 29.786837] R13: 65766f6365726f6e R14: 0030656c69662f2e R15: 0000000000000004 [ 29.894504] ff df 48 c1 ea 03 80 3c 02 00 0f 85 aa 00 00 00 48 8b 13 48 c7 c6 00 24 d6 87 48 c7 c7 60 21 d6 87 e8 4c b3 62 fa <0f> 0b e9 1d fb ff ff e8 30 9e 92 fa 0f 0b e9 29 fe ff ff e8 24 [ 29.911836] ---[ end trace 7e7a5418a9b1d729 ]--- [ 29.916981] Dumping ftrace buffer: [ 29.920625] (ftrace buffer empty) [ 29.924306] Kernel Offset: disabled [ 29.927903] Rebooting in 86400 seconds..