[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.169' (ECDSA) to the list of known hosts. syzkaller login: [ 61.452080][ T6841] IPVS: ftp: loaded support on port[0] = 21 [ 61.476966][ T6842] IPVS: ftp: loaded support on port[0] = 21 [ 61.477015][ T6844] IPVS: ftp: loaded support on port[0] = 21 [ 61.486986][ T6837] IPVS: ftp: loaded support on port[0] = 21 [ 61.497314][ T6843] IPVS: ftp: loaded support on port[0] = 21 [ 61.507663][ T6845] IPVS: ftp: loaded support on port[0] = 21 [ 71.460520][T11027] ------------[ cut here ]------------ [ 71.466367][T11038] ------------[ cut here ]------------ [ 71.472139][T11037] ------------[ cut here ]------------ [ 71.478038][T11048] ------------[ cut here ]------------ [ 71.481273][T11027] kernel BUG at fs/inode.c:1668! [ 71.485246][T11056] ------------[ cut here ]------------ [ 71.493909][T11056] ODEBUG: free active (active state 1) object type: rcu_head hint: 0x0 [ 71.502546][T11056] WARNING: CPU: 1 PID: 11056 at lib/debugobjects.c:485 debug_print_object+0x160/0x250 [ 71.512080][T11056] Kernel panic - not syncing: panic_on_warn set ... [ 71.518695][T11056] CPU: 1 PID: 11056 Comm: syz-executor853 Not tainted 5.9.0-rc2-syzkaller #0 [ 71.521745][T11027] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 71.527468][T11056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.533623][T11027] CPU: 0 PID: 11027 Comm: syz-executor853 Not tainted 5.9.0-rc2-syzkaller #0 [ 71.543680][T11056] Call Trace: [ 71.552414][T11027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.555693][T11056] dump_stack+0x18f/0x20d [ 71.565724][T11027] RIP: 0010:iput+0x64/0x70 [ 71.570042][T11056] panic+0x2e3/0x75c [ 71.574431][T11027] Code: ff 83 e3 40 48 89 de e8 3a d9 ad ff 48 85 db 75 14 e8 90 dc ad ff 48 89 ef e8 58 f7 ff ff 5b 5d e9 81 dc ad ff e8 7c dc ad ff <0f> 0b e8 05 f5 ed ff eb c5 0f 1f 00 41 56 41 55 41 54 55 48 89 fd [ 71.578301][T11056] ? __warn_printk+0xf3/0xf3 [ 71.597903][T11027] RSP: 0018:ffffc9000e30fe10 EFLAGS: 00010293 [ 71.602490][T11056] ? console_unlock+0x7f0/0xf30 [ 71.608558][T11027] RAX: 0000000000000000 RBX: 0000000000000040 RCX: ffffffff81c66276 [ 71.613412][T11056] ? __warn.cold+0x5/0x4a [ 71.621459][T11027] RDX: ffff888091a3c180 RSI: ffffffff81c66294 RDI: 0000000000000007 [ 71.625770][T11056] ? __warn+0xd6/0x1f2 [ 71.634581][T11027] RBP: ffff888085626b40 R08: 0000000000000001 R09: ffff888094cf03a3 [ 71.638627][T11056] ? debug_print_object+0x160/0x250 [ 71.646565][T11027] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 [ 71.651740][T11056] __warn.cold+0x20/0x4a [ 71.659680][T11027] R13: ffff888085626aa0 R14: ffff888085626b40 R15: ffff88808541c9d0 [ 71.663903][T11056] ? debug_print_object+0x160/0x250 [ 71.671845][T11027] FS: 0000000001285880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 71.677017][T11056] report_bug+0x1bd/0x210 [ 71.685940][T11027] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.690255][T11056] handle_bug+0x38/0x90 [ 71.696808][T11027] CR2: 000055f006f1b028 CR3: 00000000972ba000 CR4: 00000000001506f0 [ 71.700943][T11056] ? __warn_printk+0xc6/0xf3 [ 71.708882][T11027] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.713450][T11056] exc_invalid_op+0x14/0x40 [ 71.721393][T11027] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.725896][T11056] asm_exc_invalid_op+0x12/0x20 [ 71.733846][T11027] Call Trace: [ 71.738699][T11056] RIP: 0010:debug_print_object+0x160/0x250 [ 71.741969][T11027] __sock_release+0x20c/0x280 [ 71.747735][T11056] Code: dd e0 26 94 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd e0 26 94 88 48 c7 c7 40 1c 94 88 e8 d2 36 a6 fd <0f> 0b 83 05 93 4f 13 07 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89 [ 71.752385][T11027] sock_close+0x18/0x20 [ 71.771961][T11056] RSP: 0018:ffffc9000d56fdd0 EFLAGS: 00010082 [ 71.776111][T11027] __fput+0x285/0x920 [ 71.782148][T11056] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 71.786111][T11027] ? __sock_release+0x280/0x280 [ 71.794055][T11056] RDX: ffff888094970400 RSI: ffffffff815dafc7 RDI: fffff52001aadfac [ 71.798887][T11027] task_work_run+0xdd/0x190 [ 71.806825][T11056] RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880ae720f8b [ 71.811309][T11027] exit_to_user_mode_prepare+0x195/0x1c0 [ 71.819332][T11056] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89bd6780 [ 71.824962][T11027] syscall_exit_to_user_mode+0x59/0x2b0 [ 71.832898][T11056] R13: 0000000000000000 R14: dead000000000100 R15: dffffc0000000000 [ 71.838418][T11027] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 71.846363][T11056] ? vprintk_func+0x97/0x1a6 [ 71.852233][T11027] RIP: 0033:0x405861 [ 71.856816][T11056] debug_check_no_obj_freed+0x301/0x41c [ 71.860686][T11027] Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 19 00 00 c3 48 83 ec 08 e8 6a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 b3 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 71.866201][T11056] kmem_cache_free.part.0+0x16d/0x1f0 [ 71.885774][T11027] RSP: 002b:00007ffc3e2f3d30 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 71.891123][T11056] task_work_run+0xdd/0x190 [ 71.899500][T11027] RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000405861 [ 71.903988][T11056] exit_to_user_mode_prepare+0x195/0x1c0 [ 71.911923][T11027] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 71.917534][T11056] syscall_exit_to_user_mode+0x59/0x2b0 [ 71.925481][T11027] RBP: 0000000000000005 R08: 0000000120080522 R09: 0000000120080522 [ 71.931008][T11056] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 71.938949][T11027] R10: 00007ffc3e2f3d50 R11: 0000000000000293 R12: 00000000006dbc4c [ 71.944814][T11056] RIP: 0033:0x4469c9 [ 71.952761][T11027] R13: 000000000000002d R14: 0000000000000064 R15: 0000000000000000 [ 71.956633][T11056] Code: e8 8c e7 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 71.964568][T11027] Modules linked in: [ 71.984163][T11056] RSP: 002b:00007f848b428db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9 [ 71.996414][T11056] RAX: 0000000000000000 RBX: 00000000006dbc48 RCX: 00000000004469c9 [ 71.998442][T11038] kernel BUG at fs/inode.c:1668! [ 72.004378][T11056] RDX: 0000000000000004 RSI: 0000000000000001 RDI: 0000000000000003 [ 72.004387][T11056] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 72.004395][T11056] R10: 0000000020000340 R11: 0000000000000246 R12: 00000000006dbc4c [ 72.004403][T11056] R13: 00007ffc3e2f3cbf R14: 00007f848b4299c0 R15: 0000000000000000 [ 72.010377][T11056] Kernel Offset: disabled [ 72.046521][T11056] Rebooting in 86400 seconds..