[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.65' (ECDSA) to the list of known hosts. syzkaller login: [ 28.483784] sysfs: cannot create duplicate filename '/fs/gfs2/`OĮU,!.Z 'ByW72 Tlyn%s': 'G=,_Ơϝ' [ 28.493034] sysfs: cannot create duplicate filename '/fs/gfs2/`OĮU,!.Z 'ByW72 Tlyn%s': 'G=,_Ơϝ' [ 28.497126] gfs2: can't find protocol 馘ZXb}@jp*ϔN;7z?8i?t]j`OĮU,!.Z 'ByW72 Tlyn%s': 'G=,/Ơϝ [ 28.514429] sysfs: cannot create duplicate filename '/fs/gfs2/`OĮU,!.Z 'ByW72 Tlyn%s': 'G=,_Ơϝ' [ 28.531744] sysfs: cannot create duplicate filename '/fs/gfs2/`OĮU,!.Z 'ByW72 Tlyn%s': 'G=,_Ơϝ' [ 28.536897] sysfs: cannot create duplicate filename '/fs/gfs2/`OĮU,!.Z 'ByW72 Tlyn%s': 'G=,_Ơϝ' [ 28.555644] ------------[ cut here ]------------ [ 28.562819] WARNING: CPU: 0 PID: 7960 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 28.571042] Kernel panic - not syncing: panic_on_warn set ... [ 28.571042] [ 28.578402] CPU: 0 PID: 7960 Comm: syz-executor376 Not tainted 4.14.294-syzkaller #0 [ 28.578435] ------------[ cut here ]------------ [ 28.586268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 28.591016] WARNING: CPU: 1 PID: 7958 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 28.600334] Call Trace: [ 28.608535] Modules linked in: [ 28.611124] dump_stack+0x1b2/0x281 [ 28.614289] CPU: 1 PID: 7958 Comm: syz-executor376 Not tainted 4.14.294-syzkaller #0 [ 28.617896] panic+0x1f9/0x42d [ 28.625746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 28.628916] ? add_taint.cold+0x16/0x16 [ 28.638262] task: ffff88809cba2400 task.stack: ffff8880967e0000 [ 28.642231] ? sysfs_warn_dup.cold+0x17/0x26 [ 28.648273] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 28.652658] ? sysfs_warn_dup.cold+0x17/0x26 [ 28.657647] RSP: 0018:ffff8880967e7728 EFLAGS: 00010282 [ 28.662034] __warn.cold+0x20/0x44 [ 28.662041] RAX: 0000000000000074 RBX: ffff888093ae5a10 RCX: 0000000000000000 [ 28.667387] ? ist_end_non_atomic+0x10/0x10 [ 28.670898] RDX: 0000000000000000 RSI: ffffffff878bc9e0 RDI: ffffed1012cfcedb [ 28.678148] ? sysfs_warn_dup.cold+0x17/0x26 [ 28.682442] RBP: ffff8880b3cf0000 R08: 0000000000000074 R09: 0000000000000000 [ 28.689692] report_bug+0x208/0x250 [ 28.694071] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b0eb9e00 [ 28.701323] do_error_trap+0x195/0x2d0 [ 28.704920] R13: ffff8880aed0ff80 R14: ffff888093ae5a18 R15: ffff888093aed9d8 [ 28.712192] ? math_error+0x2d0/0x2d0 [ 28.716051] FS: 0000555555c41300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 28.723331] ? ___preempt_schedule+0x16/0x18 [ 28.727106] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.735331] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.739718] CR2: 00005649df62d2e8 CR3: 000000009e835000 CR4: 00000000003406e0 [ 28.745599] invalid_op+0x1b/0x40 [ 28.750429] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.757684] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 28.761628] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.768881] RSP: 0018:ffff88809ff47728 EFLAGS: 00010282 [ 28.773872] Call Trace: [ 28.786470] sysfs_create_dir_ns+0x16f/0x1d0 [ 28.789025] RAX: 0000000000000074 RBX: ffff888093aed9d0 RCX: 0000000000000000 [ 28.793414] kobject_add_internal+0x28b/0x930 [ 28.800673] RDX: 0000000000000000 RSI: ffffffff878bc9e0 RDI: ffffed1013fe8edb [ 28.805148] kobject_init_and_add+0xde/0x120 [ 28.812391] RBP: ffff8880b361e940 R08: 0000000000000074 R09: 0000000000000000 [ 28.816776] ? kobject_create_and_add+0x200/0x200 [ 28.824019] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b0eb9e00 [ 28.828843] ? vsnprintf+0x260/0x1340 [ 28.836088] R13: ffff88809d463580 R14: ffff888093aed9d8 R15: ffff888095895998 [ 28.839870] gfs2_sys_fs_add+0x184/0x3f0 [ 28.847122] ? sysfs_warn_dup.cold+0x17/0x26 [ 28.851159] ? recover_store+0x100/0x100 [ 28.855544] sysfs_create_dir_ns+0x16f/0x1d0 [ 28.859578] ? snprintf+0xa5/0xd0 [ 28.863960] kobject_add_internal+0x28b/0x930 [ 28.867396] ? memcpy+0x35/0x50 [ 28.871866] kobject_init_and_add+0xde/0x120 [ 28.875131] fill_super+0x118b/0x2310 [ 28.879514] ? kobject_create_and_add+0x200/0x200 [ 28.883300] ? vsnprintf+0x260/0x1340 [ 28.888117] ? vsnprintf+0x260/0x1340 [ 28.891892] ? gfs2_online_uevent+0x1b0/0x1b0 [ 28.895672] gfs2_sys_fs_add+0x184/0x3f0 [ 28.900153] ? pointer+0x9e0/0x9e0 [ 28.904191] ? recover_store+0x100/0x100 [ 28.907706] ? snprintf+0xa5/0xd0 [ 28.911742] ? snprintf+0xa5/0xd0 [ 28.915169] ? vsprintf+0x30/0x30 [ 28.918603] ? memcpy+0x35/0x50 [ 28.922028] ? gfs2_open+0x160/0x160 [ 28.925283] fill_super+0x118b/0x2310 [ 28.928980] ? set_blocksize+0x125/0x380 [ 28.932761] ? vsnprintf+0x260/0x1340 [ 28.936797] gfs2_mount+0x439/0x510 [ 28.940571] ? gfs2_online_uevent+0x1b0/0x1b0 [ 28.944172] ? fill_super+0x2310/0x2310 [ 28.948641] ? pointer+0x9e0/0x9e0 [ 28.952606] ? alloc_pages_current+0x15d/0x260 [ 28.956111] ? snprintf+0xa5/0xd0 [ 28.960686] ? __lockdep_init_map+0x100/0x560 [ 28.964123] ? vsprintf+0x30/0x30 [ 28.968595] mount_fs+0x92/0x2a0 [ 28.972030] ? gfs2_open+0x160/0x160 [ 28.975374] vfs_kern_mount.part.0+0x5b/0x470 [ 28.979063] ? set_blocksize+0x125/0x380 [ 28.983536] do_mount+0xe65/0x2a30 [ 28.987570] gfs2_mount+0x439/0x510 [ 28.991084] ? retint_kernel+0x2d/0x2d [ 28.994685] ? fill_super+0x2310/0x2310 [ 28.998546] ? copy_mount_string+0x40/0x40 [ 29.002507] ? alloc_pages_current+0x15d/0x260 [ 29.006725] ? copy_mount_options+0x19a/0x2f0 [ 29.011281] ? __lockdep_init_map+0x100/0x560 [ 29.015766] ? copy_mount_options+0x1fa/0x2f0 [ 29.020236] mount_fs+0x92/0x2a0 [ 29.024704] ? copy_mnt_ns+0xa30/0xa30 [ 29.028049] vfs_kern_mount.part.0+0x5b/0x470 [ 29.031908] SyS_mount+0xa8/0x120 [ 29.036378] do_mount+0xe65/0x2a30 [ 29.039825] ? copy_mnt_ns+0xa30/0xa30 [ 29.043361] ? copy_mount_string+0x40/0x40 [ 29.047220] do_syscall_64+0x1d5/0x640 [ 29.051431] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 29.055297] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 29.060285] ? copy_mnt_ns+0xa30/0xa30 [ 29.065449] RIP: 0033:0x7f329af44d2a [ 29.069311] ? copy_mount_options+0x1fa/0x2f0 [ 29.072996] RSP: 002b:00007ffcbf7f7f98 EFLAGS: 00000282 [ 29.077470] ? copy_mnt_ns+0xa30/0xa30 [ 29.077472] ORIG_RAX: 00000000000000a5 [ 29.077479] RAX: ffffffffffffffda RBX: 00007ffcbf7f7ff0 RCX: 00007f329af44d2a [ 29.082817] SyS_mount+0xa8/0x120 [ 29.086679] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffcbf7f7fb0 [ 29.090655] ? copy_mnt_ns+0xa30/0xa30 [ 29.097898] RBP: 00007ffcbf7f7fb0 R08: 00007ffcbf7f7ff0 R09: 0000000000000002 [ 29.101331] do_syscall_64+0x1d5/0x640 [ 29.108575] R10: 0000000000000008 R11: 0000000000000282 R12: 0000000020000070 [ 29.112443] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 29.119698] R13: 0000000000000003 R14: 0000000000000004 R15: 0000000000000002 [ 29.123559] RIP: 0033:0x7f329af44d2a [ 29.130808] Code: [ 29.135966] RSP: 002b:00007ffcbf7f7f98 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 29.143219] bd [ 29.146907] RAX: ffffffffffffffda RBX: 00007ffcbf7f7ff0 RCX: 00007f329af44d2a [ 29.149033] ea [ 29.156714] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffcbf7f7fb0 [ 29.158577] ff [ 29.165825] RBP: 00007ffcbf7f7fb0 R08: 00007ffcbf7f7ff0 R09: 0000000000000002 [ 29.167688] ff [ 29.174932] R10: 0000000000000008 R11: 0000000000000282 R12: 0000000020000070 [ 29.174937] R13: 0000000000000003 R14: 0000000000000004 R15: 0000000000000002 [ 29.176802] ff e9 83 0f a0 fa 4c 89 ff e8 58 2d 7b fa eb da e8 31 73 51 fa 4c 89 ea 48 89 ee 48 c7 c7 c0 bc 95 87 e8 04 fc fe ff <0f> 0b 48 89 ef 5d 41 5c 41 5d e9 30 03 7b fa e8 0b 73 51 fa 4d [ 29.218030] ---[ end trace 7a06f13459694e21 ]--- [ 29.222932] Kernel Offset: disabled [ 29.226589] Rebooting in 86400 seconds..