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 '10.128.10.18' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 24.226409] gfs2: fsid=cpusettrusted_ppp0@: Trying to join cluster "lock_nolock", "cpusettrusted_ppp0@" [ 24.235660] sysfs: cannot create duplicate filename '/fs/gfs2/cpusettrusted_ppp0@' [ 24.236144] gfs2: fsid=cpusettrusted_ppp0@: Now mounting FS... [ 24.243965] CPU: 1 PID: 4433 Comm: syzkaller772144 Not tainted 4.16.0+ #10 [ 24.254953] sysfs: cannot create duplicate filename '/fs/gfs2/cpusettrusted_ppp0@' [ 24.256873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.256877] Call Trace: [ 24.256893] dump_stack+0x194/0x24d [ 24.256905] ? arch_local_irq_restore+0x53/0x53 [ 24.284714] ? trace_hardirqs_on+0xd/0x10 [ 24.288849] ? sysfs_warn_dup+0x6c/0xa0 [ 24.292806] sysfs_warn_dup+0x83/0xa0 [ 24.296589] sysfs_create_dir_ns+0x178/0x1d0 [ 24.300982] kobject_add_internal+0x335/0xbc0 [ 24.305462] ? kobj_ns_type_registered+0x50/0x50 [ 24.310198] ? kfree_const+0x31/0x40 [ 24.313893] ? rcu_read_lock_sched_held+0x108/0x120 [ 24.318889] ? kfree+0x1f6/0x260 [ 24.322238] ? kfree_const+0x36/0x40 [ 24.325937] kobject_init_and_add+0xf9/0x150 [ 24.330325] ? kset_create_and_add+0x170/0x170 [ 24.334889] ? vsnprintf+0x1ed/0x1900 [ 24.338680] gfs2_sys_fs_add+0x1ff/0x580 [ 24.342721] ? recover_store+0x160/0x160 [ 24.346763] ? snprintf+0xc0/0xf0 [ 24.350198] ? vsprintf+0x40/0x40 [ 24.353632] ? set_blocksize+0x1f1/0x260 [ 24.357674] ? memcpy+0x45/0x50 [ 24.360941] fill_super+0x86f/0x1d70 [ 24.364636] ? vsnprintf+0x1ed/0x1900 [ 24.368424] ? gfs2_online_uevent+0x2a0/0x2a0 [ 24.372902] ? memcpy+0x45/0x50 [ 24.376165] ? match_strlcpy+0xbc/0xf0 [ 24.380036] ? snprintf+0xc0/0xf0 [ 24.383468] ? vsprintf+0x40/0x40 [ 24.386902] ? ns_capable_common+0xcf/0x160 [ 24.391208] ? set_blocksize+0x1f1/0x260 [ 24.395251] gfs2_mount+0x587/0x6e0 [ 24.398863] ? gfs2_mount+0x587/0x6e0 [ 24.402646] ? fill_super+0x1d70/0x1d70 [ 24.406620] mount_fs+0x66/0x2d0 [ 24.409974] vfs_kern_mount.part.26+0xc6/0x4a0 [ 24.414539] ? may_umount+0xa0/0xa0 [ 24.418146] ? _raw_read_unlock+0x22/0x30 [ 24.422277] ? __get_fs_type+0x8a/0xc0 [ 24.426147] do_mount+0xea4/0x2bb0 [ 24.429669] ? copy_mount_string+0x40/0x40 [ 24.433889] ? rcu_pm_notify+0xc0/0xc0 [ 24.437763] ? copy_mount_options+0x5f/0x2e0 [ 24.442154] ? rcu_read_lock_sched_held+0x108/0x120 [ 24.447174] ? kmem_cache_alloc_trace+0x459/0x740 [ 24.452001] ? kasan_check_write+0x14/0x20 [ 24.456216] ? _copy_from_user+0x99/0x110 [ 24.460349] ? copy_mount_options+0x1f7/0x2e0 [ 24.464827] SyS_mount+0xab/0x120 [ 24.468263] ? copy_mnt_ns+0xb30/0xb30 [ 24.472136] do_syscall_64+0x281/0x940 [ 24.476008] ? vmalloc_sync_all+0x30/0x30 [ 24.480138] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 24.485656] ? syscall_return_slowpath+0x550/0x550 [ 24.490567] ? syscall_return_slowpath+0x2ac/0x550 [ 24.495481] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 24.500831] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.505659] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 24.510827] RIP: 0033:0x4431ea [ 24.513997] RSP: 002b:00007ffdb42700b8 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 24.521687] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004431ea [ 24.528938] RDX: 0000000020000180 RSI: 00000000200001c0 RDI: 00007ffdb42700d0 [ 24.536189] RBP: 6e5f6b636f6c3d6f R08: 0000000020000380 R09: 000000000000000a [ 24.543448] R10: 0000000000000000 R11: 0000000000000297 R12: 746f72706b636f6c [ 24.550697] R13: 0000000000401ce0 R14: 0030656c69662f2e R15: 0000000000000004 [ 24.557959] CPU: 0 PID: 4432 Comm: syzkaller772144 Not tainted 4.16.0+ #10 [ 24.558532] ------------[ cut here ]------------ [ 24.564957] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.564961] Call Trace: [ 24.564973] dump_stack+0x194/0x24d [ 24.564983] ? arch_local_irq_restore+0x53/0x53 [ 24.569721] kobject_add_internal failed for cpusettrusted_ppp0@ with -EEXIST, don't try to register things with the same name in the same directory. [ 24.579041] ? trace_hardirqs_on+0xd/0x10 [ 24.579053] ? sysfs_warn_dup+0x6c/0xa0 [ 24.579063] sysfs_warn_dup+0x83/0xa0 [ 24.581838] WARNING: CPU: 1 PID: 4433 at lib/kobject.c:238 kobject_add_internal+0x8d4/0xbc0 [ 24.585221] sysfs_create_dir_ns+0x178/0x1d0 [ 24.589857] Kernel panic - not syncing: panic_on_warn set ... [ 24.589857] [ 24.603267] kobject_add_internal+0x335/0xbc0 [ 24.639719] ? kobj_ns_type_registered+0x50/0x50 [ 24.644458] ? kfree_const+0x31/0x40 [ 24.648151] ? rcu_read_lock_sched_held+0x108/0x120 [ 24.653144] ? kfree+0x1f6/0x260 [ 24.656491] ? kfree_const+0x36/0x40 [ 24.660183] kobject_init_and_add+0xf9/0x150 [ 24.664568] ? kset_create_and_add+0x170/0x170 [ 24.669129] ? vsnprintf+0x1ed/0x1900 [ 24.672917] gfs2_sys_fs_add+0x1ff/0x580 [ 24.676953] ? recover_store+0x160/0x160 [ 24.680995] ? snprintf+0xc0/0xf0 [ 24.684424] ? vsprintf+0x40/0x40 [ 24.687855] ? set_blocksize+0x1f1/0x260 [ 24.691895] ? memcpy+0x45/0x50 [ 24.695158] fill_super+0x86f/0x1d70 [ 24.698851] ? vsnprintf+0x1ed/0x1900 [ 24.702633] ? gfs2_online_uevent+0x2a0/0x2a0 [ 24.707103] ? memcpy+0x45/0x50 [ 24.710364] ? match_strlcpy+0xbc/0xf0 [ 24.714232] ? snprintf+0xc0/0xf0 [ 24.717662] ? vsprintf+0x40/0x40 [ 24.721093] ? ns_capable_common+0xcf/0x160 [ 24.725392] ? set_blocksize+0x1f1/0x260 [ 24.729431] gfs2_mount+0x587/0x6e0 [ 24.733034] ? gfs2_mount+0x587/0x6e0 [ 24.736816] ? fill_super+0x1d70/0x1d70 [ 24.740787] mount_fs+0x66/0x2d0 [ 24.744140] vfs_kern_mount.part.26+0xc6/0x4a0 [ 24.748699] ? may_umount+0xa0/0xa0 [ 24.752307] ? _raw_read_unlock+0x22/0x30 [ 24.756431] ? __get_fs_type+0x8a/0xc0 [ 24.760296] do_mount+0xea4/0x2bb0 [ 24.763815] ? copy_mount_string+0x40/0x40 [ 24.768029] ? rcu_pm_notify+0xc0/0xc0 [ 24.771899] ? copy_mount_options+0x5f/0x2e0 [ 24.776283] ? rcu_read_lock_sched_held+0x108/0x120 [ 24.781275] ? kmem_cache_alloc_trace+0x459/0x740 [ 24.786097] ? copy_mount_options+0x1f7/0x2e0 [ 24.790571] SyS_mount+0xab/0x120 [ 24.794003] ? copy_mnt_ns+0xb30/0xb30 [ 24.797869] do_syscall_64+0x281/0x940 [ 24.801740] ? vmalloc_sync_all+0x30/0x30 [ 24.805866] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 24.811378] ? syscall_return_slowpath+0x550/0x550 [ 24.816284] ? syscall_return_slowpath+0x2ac/0x550 [ 24.821197] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 24.826541] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.831363] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 24.836531] RIP: 0033:0x4431ea [ 24.839699] RSP: 002b:00007ffdb42700b8 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 24.847386] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004431ea [ 24.854634] RDX: 0000000020000180 RSI: 00000000200001c0 RDI: 00007ffdb42700d0 [ 24.861881] RBP: 6e5f6b636f6c3d6f R08: 0000000020000380 R09: 000000000000000a [ 24.869127] R10: 0000000000000000 R11: 0000000000000297 R12: 746f72706b636f6c [ 24.876374] R13: 0000000000401ce0 R14: 0030656c69662f2e R15: 0000000000000004 [ 24.883633] CPU: 1 PID: 4433 Comm: syzkaller772144 Not tainted 4.16.0+ #10 [ 24.883780] ------------[ cut here ]------------ [ 24.890622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.890625] Call Trace: [ 24.890635] dump_stack+0x194/0x24d [ 24.890645] ? arch_local_irq_restore+0x53/0x53 [ 24.890657] ? vsnprintf+0x1ed/0x1900 [ 24.895399] kobject_add_internal failed for cpusettrusted_ppp0@ with -EEXIST, don't try to register things with the same name in the same directory. [ 24.904710] panic+0x1e4/0x41c [ 24.904718] ? refcount_error_report+0x214/0x214 [ 24.904725] ? show_regs_print_info+0x18/0x18 [ 24.904735] ? vprintk_emit+0xa5f/0xb90 [ 24.907518] WARNING: CPU: 0 PID: 4432 at lib/kobject.c:238 kobject_add_internal+0x8d4/0xbc0 [ 24.910893] ? __warn+0x1c1/0x200 [ 24.915522] Modules linked in: [ 24.919298] ? kobject_add_internal+0x8d4/0xbc0 [ 24.932701] CPU: 0 PID: 4432 Comm: syzkaller772144 Not tainted 4.16.0+ #10 [ 24.935865] __warn+0x1dc/0x200 [ 24.940585] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.945048] ? kobject_add_internal+0x8d4/0xbc0 [ 24.948994] RIP: 0010:kobject_add_internal+0x8d4/0xbc0 [ 24.957451] report_bug+0x1f4/0x2b0 [ 24.960869] RSP: 0018:ffff8801ad5ff4a0 EFLAGS: 00010282 [ 24.964040] fixup_bug.part.10+0x37/0x80 [ 24.968669] RAX: dffffc0000000008 RBX: ffff8801ad3b5190 RCX: ffffffff815b193e [ 24.968675] RDX: 0000000000000000 RSI: 1ffff10035abfe44 RDI: 1ffff10035abfe19 [ 24.975657] do_error_trap+0x2d7/0x3e0 [ 24.978900] RBP: ffff8801ad5ff598 R08: 1ffff10035abfddb R09: 0000000000000001 [ 24.978906] R10: ffff8801ad5ff260 R11: 0000000000000000 R12: 1ffff10035abfe9a [ 24.988233] ? vprintk_default+0x28/0x30 [ 24.992862] R13: 00000000ffffffef R14: ffff8801d3a58548 R15: 1ffff10035abfe9e [ 24.992869] FS: 0000000001a3d880(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 [ 24.998112] ? math_error+0x400/0x400 [ 25.001703] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.007038] ? printk+0xaa/0xca [ 25.011062] CR2: 0000000000e2e380 CR3: 00000001ba2b5003 CR4: 00000000001606f0 [ 25.011069] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.018309] ? show_regs_print_info+0x18/0x18 [ 25.025546] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.025549] Call Trace: [ 25.029413] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 25.036651] ? kobj_ns_type_registered+0x50/0x50 [ 25.043890] do_invalid_op+0x1b/0x20 [ 25.047920] ? kfree_const+0x31/0x40 [ 25.055157] invalid_op+0x1b/0x40 [ 25.063357] ? rcu_read_lock_sched_held+0x108/0x120 [ 25.067125] RIP: 0010:kobject_add_internal+0x8d4/0xbc0 [ 25.072980] ? kfree+0x1f6/0x260 [ 25.076220] RSP: 0018:ffff8801adb4f4a0 EFLAGS: 00010282 [ 25.083467] ? kfree_const+0x36/0x40 [ 25.090707] RAX: dffffc0000000008 RBX: ffff8801ad2d1150 RCX: ffffffff815b193e [ 25.095171] kobject_init_and_add+0xf9/0x150 [ 25.102408] RDX: 0000000000000000 RSI: 1ffff10035b69e44 RDI: 1ffff10035b69e19 [ 25.104965] ? kset_create_and_add+0x170/0x170 [ 25.109775] RBP: ffff8801adb4f598 R08: 1ffff10035b69ddb R09: 0000000000000000 [ 25.114500] ? vsnprintf+0x1ed/0x1900 [ 25.118175] R10: ffff8801adb4f260 R11: 0000000000000000 R12: 1ffff10035b69e9a [ 25.118181] R13: 00000000ffffffef R14: ffff8801d3a58548 R15: 1ffff10035b69e9e [ 25.121873] gfs2_sys_fs_add+0x1ff/0x580 [ 25.125293] ? vprintk_func+0x5e/0xc0 [ 25.130273] ? recover_store+0x160/0x160 [ 25.135524] ? kobj_ns_type_registered+0x50/0x50 [ 25.138854] ? snprintf+0xc0/0xf0 [ 25.144184] ? kfree_const+0x31/0x40 [ 25.147868] ? vsprintf+0x40/0x40 [ 25.155108] ? rcu_read_lock_sched_held+0x108/0x120 [ 25.159484] ? set_blocksize+0x1f1/0x260 [ 25.166723] ? kfree+0x1f6/0x260 [ 25.171273] ? memcpy+0x45/0x50 [ 25.178515] ? kfree_const+0x36/0x40 [ 25.182293] fill_super+0x86f/0x1d70 [ 25.189534] kobject_init_and_add+0xf9/0x150 [ 25.196778] ? vsnprintf+0x1ed/0x1900 [ 25.200810] ? kset_create_and_add+0x170/0x170 [ 25.204584] ? gfs2_online_uevent+0x2a0/0x2a0 [ 25.208610] ? vsnprintf+0x1ed/0x1900 [ 25.213332] ? memcpy+0x45/0x50 [ 25.216761] gfs2_sys_fs_add+0x1ff/0x580 [ 25.220442] ? match_strlcpy+0xbc/0xf0 [ 25.223861] ? recover_store+0x160/0x160 [ 25.228846] ? snprintf+0xc0/0xf0 [ 25.232875] ? snprintf+0xc0/0xf0 [ 25.236210] ? vsprintf+0x40/0x40 [ 25.239460] ? vsprintf+0x40/0x40 [ 25.243147] ? ns_capable_common+0xcf/0x160 [ 25.246830] ? set_blocksize+0x1f1/0x260 [ 25.251214] ? set_blocksize+0x1f1/0x260 [ 25.254980] ? memcpy+0x45/0x50 [ 25.259531] gfs2_mount+0x587/0x6e0 [ 25.263996] fill_super+0x86f/0x1d70 [ 25.267762] ? gfs2_mount+0x587/0x6e0 [ 25.271011] ? vsnprintf+0x1ed/0x1900 [ 25.275042] ? fill_super+0x1d70/0x1d70 [ 25.278902] ? gfs2_online_uevent+0x2a0/0x2a0 [ 25.282944] mount_fs+0x66/0x2d0 [ 25.286353] ? memcpy+0x45/0x50 [ 25.289781] vfs_kern_mount.part.26+0xc6/0x4a0 [ 25.293201] ? match_strlcpy+0xbc/0xf0 [ 25.296634] ? may_umount+0xa0/0xa0 [ 25.300921] ? snprintf+0xc0/0xf0 [ 25.304949] ? _raw_read_unlock+0x22/0x30 [ 25.308980] ? vsprintf+0x40/0x40 [ 25.312230] ? __get_fs_type+0x8a/0xc0 [ 25.315829] ? ns_capable_common+0xcf/0x160 [ 25.319511] do_mount+0xea4/0x2bb0 [ 25.323279] ? set_blocksize+0x1f1/0x260 [ 25.327052] ? copy_mount_string+0x40/0x40 [ 25.330996] gfs2_mount+0x587/0x6e0 [ 25.335459] ? rcu_pm_notify+0xc0/0xc0 [ 25.338797] ? gfs2_mount+0x587/0x6e0 [ 25.342048] ? copy_mount_options+0x5f/0x2e0 [ 25.346598] ? fill_super+0x1d70/0x1d70 [ 25.350454] ? rcu_read_lock_sched_held+0x108/0x120 [ 25.354064] mount_fs+0x66/0x2d0 [ 25.357474] ? kmem_cache_alloc_trace+0x459/0x740 [ 25.361590] vfs_kern_mount.part.26+0xc6/0x4a0 [ 25.365015] ? copy_mount_options+0x1f7/0x2e0 [ 25.368867] ? may_umount+0xa0/0xa0 [ 25.373156] SyS_mount+0xab/0x120 [ 25.376663] ? _raw_read_unlock+0x22/0x30 [ 25.380695] ? copy_mnt_ns+0xb30/0xb30 [ 25.384899] ? __get_fs_type+0x8a/0xc0 [ 25.388495] do_syscall_64+0x281/0x940 [ 25.392349] do_mount+0xea4/0x2bb0 [ 25.396119] ? vmalloc_sync_all+0x30/0x30 [ 25.400496] ? copy_mount_string+0x40/0x40 [ 25.404435] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 25.409417] ? rcu_pm_notify+0xc0/0xc0 [ 25.409429] ? copy_mount_options+0x5f/0x2e0 [ 25.412764] ? syscall_return_slowpath+0x550/0x550 [ 25.417575] ? rcu_read_lock_sched_held+0x108/0x120 [ 25.422127] ? syscall_return_slowpath+0x2ac/0x550 [ 25.426589] ? kmem_cache_alloc_trace+0x459/0x740 [ 25.430192] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 25.433611] ? kasan_check_write+0x14/0x20 [ 25.437730] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 25.441584] ? _copy_from_user+0x99/0x110 [ 25.445442] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 25.449295] ? copy_mount_options+0x1f7/0x2e0 [ 25.452804] RIP: 0033:0x4431ea [ 25.456921] SyS_mount+0xab/0x120 [ 25.461122] RSP: 002b:00007ffdb42700b8 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 25.466634] ? copy_mnt_ns+0xb30/0xb30 [ 25.470491] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004431ea [ 25.470497] RDX: 0000000020000180 RSI: 00000000200001c0 RDI: 00007ffdb42700d0 [ 25.474875] do_syscall_64+0x281/0x940 [ 25.479767] RBP: 6e5f6b636f6c3d6f R08: 0000000020000380 R09: 000000000000000a [ 25.484762] ? vmalloc_sync_all+0x30/0x30 [ 25.489650] R10: 0000000000000000 R11: 0000000000000297 R12: 746f72706b636f6c [ 25.489655] R13: 0000000000401ce0 R14: 0030656c69662f2e R15: 0000000000000004 [ 25.494469] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 25.499803] Code: [ 25.504006] ? syscall_return_slowpath+0x550/0x550 [ 25.508811] 00 [ 25.512934] ? syscall_return_slowpath+0x2ac/0x550 [ 25.518086] 00 [ 25.522555] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 25.525708] 00 [ 25.529135] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 25.536806] 00 [ 25.540668] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 25.547907] fc [ 25.555151] RIP: 0033:0x4431ea [ 25.555156] RSP: 002b:00007ffdb42700b8 EFLAGS: 00000297 [ 25.559009] ff [ 25.566249] ORIG_RAX: 00000000000000a5 [ 25.566255] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004431ea [ 25.570372] df [ 25.577611] RDX: 0000000020000180 RSI: 00000000200001c0 RDI: 00007ffdb42700d0 [ 25.577617] RBP: 6e5f6b636f6c3d6f R08: 0000000020000380 R09: 000000000000000a [ 25.584854] 48 [ 25.590360] R10: 0000000000000000 R11: 0000000000000297 R12: 746f72706b636f6c [ 25.590366] R13: 0000000000401ce0 R14: 0030656c69662f2e R15: 0000000000000004 [ 25.592484] 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 [ 25.697602] ---[ end trace 8b65d3ea081c4394 ]--- [ 25.702744] Dumping ftrace buffer: [ 25.706431] (ftrace buffer empty) [ 25.710116] Kernel Offset: disabled [ 25.713717] Rebooting in 86400 seconds..