Warning: Permanently added '10.128.0.209' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 30.253824] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 30.286494] gfs2: fsid=syz:syz: Now mounting FS... [ 30.295697] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 30.309008] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 30.330588] ------------[ cut here ]------------ [ 30.335377] WARNING: CPU: 0 PID: 7982 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 30.335561] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 30.343588] Kernel panic - not syncing: panic_on_warn set ... [ 30.343588] [ 30.343596] CPU: 0 PID: 7982 Comm: syz-executor264 Not tainted 4.14.302-syzkaller #0 [ 30.343600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 30.343603] Call Trace: [ 30.343616] dump_stack+0x1b2/0x281 [ 30.343626] panic+0x1f9/0x42d [ 30.343632] ? add_taint.cold+0x16/0x16 [ 30.343643] ? sysfs_warn_dup.cold+0x17/0x26 [ 30.343651] ? sysfs_warn_dup.cold+0x17/0x26 [ 30.343657] __warn.cold+0x20/0x44 [ 30.343666] ? ist_end_non_atomic+0x10/0x10 [ 30.343672] ? sysfs_warn_dup.cold+0x17/0x26 [ 30.343680] report_bug+0x208/0x250 [ 30.343689] do_error_trap+0x195/0x2d0 [ 30.354322] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 30.357684] ? math_error+0x2d0/0x2d0 [ 30.357693] ? ___preempt_schedule+0x16/0x18 [ 30.357705] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.357715] invalid_op+0x1b/0x40 [ 30.357724] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 30.357727] RSP: 0018:ffff8880b35d7728 EFLAGS: 00010282 [ 30.357734] RAX: 000000000000003a RBX: ffff888095705b50 RCX: 0000000000000000 [ 30.357738] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed10166baedb [ 30.357743] RBP: ffff88809561c980 R08: 000000000000003a R09: 0000000000000000 [ 30.357746] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b12d11c0 [ 30.357751] R13: ffff8880af9281c0 R14: ffff888095705b58 R15: ffff888095719b18 [ 30.357765] ? sysfs_warn_dup.cold+0x17/0x26 [ 30.357775] sysfs_create_dir_ns+0x16f/0x1d0 [ 30.374326] ------------[ cut here ]------------ [ 30.374972] kobject_add_internal+0x28b/0x930 [ 30.377542] WARNING: CPU: 1 PID: 7981 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 30.381140] kobject_init_and_add+0xde/0x120 [ 30.384297] Modules linked in: [ 30.384308] CPU: 1 PID: 7981 Comm: syz-executor264 Not tainted 4.14.302-syzkaller #0 [ 30.388254] ? kobject_create_and_add+0x200/0x200 [ 30.392630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 30.397013] ? vsnprintf+0x260/0x1340 [ 30.400524] task: ffff8880b366e4c0 task.stack: ffff8880b3c68000 [ 30.404823] gfs2_sys_fs_add+0x184/0x3f0 [ 30.409198] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 30.412795] ? recover_store+0x100/0x100 [ 30.416653] RSP: 0018:ffff8880b3c6f728 EFLAGS: 00010282 [ 30.423298] ? snprintf+0xa5/0xd0 [ 30.431444] ? strscpy+0x94/0x280 [ 30.436255] RAX: 000000000000003a RBX: ffff8880b1b0dbd0 RCX: 0000000000000000 [ 30.439680] fill_super+0x118b/0x2310 [ 30.444665] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed101678dedb [ 30.450002] ? vsnprintf+0x260/0x1340 [ 30.457240] RBP: ffff8880973a0bc0 R08: 000000000000003a R09: 0000000000000001 [ 30.464486] ? gfs2_online_uevent+0x1b0/0x1b0 [ 30.471725] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b12d11c0 [ 30.478972] ? pointer+0x9e0/0x9e0 [ 30.486213] R13: ffff8880b2893bc0 R14: ffff8880b1b0dbd8 R15: ffff8880b100dc18 [ 30.490597] ? snprintf+0xa5/0xd0 [ 30.494975] FS: 000055555603e300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 30.499702] ? vsprintf+0x30/0x30 [ 30.504166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.512366] ? gfs2_open+0x160/0x160 [ 30.516743] CR2: 00007ffe00ffa000 CR3: 00000000a060c000 CR4: 00000000003406e0 [ 30.519913] ? set_blocksize+0x125/0x380 [ 30.527759] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.532578] gfs2_mount+0x439/0x510 [ 30.541899] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.545675] ? fill_super+0x2310/0x2310 [ 30.551702] Call Trace: [ 30.555750] ? alloc_pages_current+0x15d/0x260 [ 30.560726] sysfs_create_dir_ns+0x16f/0x1d0 [ 30.564765] ? __lockdep_init_map+0x100/0x560 [ 30.570103] kobject_add_internal+0x28b/0x930 [ 30.573529] mount_fs+0x92/0x2a0 [ 30.576958] kobject_init_and_add+0xde/0x120 [ 30.584204] vfs_kern_mount.part.0+0x5b/0x470 [ 30.587974] ? kobject_create_and_add+0x200/0x200 [ 30.595217] do_mount+0xe65/0x2a30 [ 30.598988] ? vsnprintf+0x260/0x1340 [ 30.606234] ? retint_kernel+0x2d/0x2d [ 30.610700] gfs2_sys_fs_add+0x184/0x3f0 [ 30.617940] ? copy_mount_string+0x40/0x40 [ 30.621452] ? recover_store+0x100/0x100 [ 30.628696] ? copy_mount_options+0x194/0x2f0 [ 30.632118] ? snprintf+0xa5/0xd0 [ 30.640320] ? copy_mount_options+0x1fa/0x2f0 [ 30.643749] ? strscpy+0x94/0x280 [ 30.649600] ? copy_mnt_ns+0xa30/0xa30 [ 30.653286] fill_super+0x118b/0x2310 [ 30.660529] SyS_mount+0xa8/0x120 [ 30.664562] ? vsnprintf+0x260/0x1340 [ 30.671812] ? copy_mnt_ns+0xa30/0xa30 [ 30.675413] ? gfs2_online_uevent+0x1b0/0x1b0 [ 30.682656] do_syscall_64+0x1d5/0x640 [ 30.686599] ? pointer+0x9e0/0x9e0 [ 30.689160] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 30.693712] ? snprintf+0xa5/0xd0 [ 30.698088] RIP: 0033:0x7f0f1ec346da [ 30.702552] ? vsprintf+0x30/0x30 [ 30.707019] RSP: 002b:00007ffe00ff9628 EFLAGS: 00000282 [ 30.710359] ? gfs2_open+0x160/0x160 [ 30.714734] ORIG_RAX: 00000000000000a5 [ 30.719244] ? set_blocksize+0x125/0x380 [ 30.724057] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0f1ec346da [ 30.727669] gfs2_mount+0x439/0x510 [ 30.731437] RDX: 0000000020037f40 RSI: 0000000020037f80 RDI: 00007ffe00ff9640 [ 30.735299] ? fill_super+0x2310/0x2310 [ 30.739330] RBP: 00007ffe00ff9640 R08: 00007ffe00ff9680 R09: 0000000000000002 [ 30.743554] ? alloc_pages_current+0x15d/0x260 [ 30.747576] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000004 [ 30.752047] ? __lockdep_init_map+0x100/0x560 [ 30.755470] R13: 000055555603e2c0 R14: 0000000000000000 R15: 00007ffe00ff9680 [ 30.759938] mount_fs+0x92/0x2a0 [ 30.882779] vfs_kern_mount.part.0+0x5b/0x470 [ 30.887262] do_mount+0xe65/0x2a30 [ 30.890792] ? retint_kernel+0x2d/0x2d [ 30.894666] ? copy_mount_string+0x40/0x40 [ 30.898886] ? copy_mount_options+0x194/0x2f0 [ 30.903364] ? copy_mount_options+0x1fa/0x2f0 [ 30.907841] ? copy_mnt_ns+0xa30/0xa30 [ 30.911710] SyS_mount+0xa8/0x120 [ 30.915144] ? copy_mnt_ns+0xa30/0xa30 [ 30.919019] do_syscall_64+0x1d5/0x640 [ 30.922893] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 30.928062] RIP: 0033:0x7f0f1ec346da [ 30.931759] RSP: 002b:00007ffe00ff9628 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 30.939447] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0f1ec346da [ 30.946697] RDX: 0000000020037f40 RSI: 0000000020037f80 RDI: 00007ffe00ff9640 [ 30.953951] RBP: 00007ffe00ff9640 R08: 00007ffe00ff9680 R09: 0000000000000002 [ 30.961212] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000004 [ 30.968473] R13: 000055555603e2c0 R14: 0000000000000000 R15: 00007ffe00ff9680 [ 30.975737] Code: bd ea ff ff ff e9 8f c2 9f fa 4c 89 ff e8 74 de 7a fa eb da e8 6d 1d 51 fa 4c 89 ea 48 89 ee 48 c7 c7 80 c4 95 87 e8 e5 fb fe ff <0f> 0b 48 89 ef 5d 41 5c 41 5d e9 4c b4 7a fa e8 47 1d 51 fa 4d [ 30.995031] ---[ end trace f65bd54e838267ac ]--- [ 31.000048] Kernel Offset: disabled [ 31.003702] Rebooting in 86400 seconds..