Warning: Permanently added '10.128.0.78' (ECDSA) to the list of known hosts. syzkaller login: [ 28.363107] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 28.391696] gfs2: fsid=syz:syz: Now mounting FS... [ 28.411292] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 28.424235] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents [ 28.431231] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 28.432258] ------------[ cut here ]------------ [ 28.441204] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 28.442658] WARNING: CPU: 0 PID: 7992 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 28.442663] Kernel panic - not syncing: panic_on_warn set ... [ 28.442663] [ 28.442672] CPU: 0 PID: 7992 Comm: syz-executor130 Not tainted 4.14.302-syzkaller #0 [ 28.442676] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 28.442679] Call Trace: [ 28.442691] dump_stack+0x1b2/0x281 [ 28.462743] ------------[ cut here ]------------ [ 28.464883] panic+0x1f9/0x42d [ 28.472742] WARNING: CPU: 1 PID: 7995 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 28.482064] ? add_taint.cold+0x16/0x16 [ 28.484613] Modules linked in: [ 28.488214] ? sysfs_warn_dup.cold+0x17/0x26 [ 28.496103] ? sysfs_warn_dup.cold+0x17/0x26 [ 28.504297] CPU: 1 PID: 7995 Comm: syz-executor130 Not tainted 4.14.302-syzkaller #0 [ 28.508238] __warn.cold+0x20/0x44 [ 28.511397] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 28.515777] ? ist_end_non_atomic+0x10/0x10 [ 28.520153] task: ffff888095a66100 task.stack: ffff88809cf10000 [ 28.528006] ? sysfs_warn_dup.cold+0x17/0x26 [ 28.531519] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 28.540848] report_bug+0x208/0x250 [ 28.545134] RSP: 0018:ffff88809cf17728 EFLAGS: 00010282 [ 28.551164] do_error_trap+0x195/0x2d0 [ 28.560528] ? math_error+0x2d0/0x2d0 [ 28.564127] RAX: 000000000000003a RBX: ffff8880957f5b90 RCX: 0000000000000000 [ 28.569464] ? ___preempt_schedule+0x16/0x18 [ 28.573321] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed10139e2edb [ 28.577097] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.584336] RBP: ffff8880956ecd80 R08: 000000000000003a R09: 0000000000000000 [ 28.588722] invalid_op+0x1b/0x40 [ 28.595976] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b134d700 [ 28.600790] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 28.608028] R13: ffff8880b2dea5c0 R14: ffff8880957f5b98 R15: ffff8880956d5b58 [ 28.611449] RSP: 0018:ffff8880a0f27728 EFLAGS: 00010282 [ 28.618697] FS: 0000555555faa300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 28.630923] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.636256] RAX: 000000000000003a RBX: ffff8880956d5b50 RCX: 0000000000000000 [ 28.644453] CR2: 00007ffd0ab27c60 CR3: 00000000a8f41000 CR4: 00000000003406e0 [ 28.650310] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed10141e4edb [ 28.657552] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.664796] RBP: ffff8880b1a6c980 R08: 000000000000003a R09: 0000000000000000 [ 28.672041] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.679284] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b134d700 [ 28.686524] Call Trace: [ 28.693766] R13: ffff8880b613ab40 R14: ffff8880956d5b58 R15: ffff88809dfadb18 [ 28.693787] ? sysfs_warn_dup.cold+0x17/0x26 [ 28.701022] sysfs_create_dir_ns+0x16f/0x1d0 [ 28.703574] sysfs_create_dir_ns+0x16f/0x1d0 [ 28.710817] kobject_add_internal+0x28b/0x930 [ 28.715193] kobject_add_internal+0x28b/0x930 [ 28.719575] kobject_init_and_add+0xde/0x120 [ 28.723954] kobject_init_and_add+0xde/0x120 [ 28.728420] ? kobject_create_and_add+0x200/0x200 [ 28.732886] ? kobject_create_and_add+0x200/0x200 [ 28.737264] ? vsnprintf+0x260/0x1340 [ 28.741641] ? vsnprintf+0x260/0x1340 [ 28.746455] gfs2_sys_fs_add+0x184/0x3f0 [ 28.751271] gfs2_sys_fs_add+0x184/0x3f0 [ 28.755042] ? recover_store+0x100/0x100 [ 28.758810] ? recover_store+0x100/0x100 [ 28.762839] ? snprintf+0xa5/0xd0 [ 28.766869] ? snprintf+0xa5/0xd0 [ 28.770901] ? strscpy+0x94/0x280 [ 28.774931] ? strscpy+0x94/0x280 [ 28.778353] fill_super+0x118b/0x2310 [ 28.781777] fill_super+0x118b/0x2310 [ 28.785201] ? vsnprintf+0x260/0x1340 [ 28.788624] ? vsnprintf+0x260/0x1340 [ 28.792395] ? gfs2_online_uevent+0x1b0/0x1b0 [ 28.796164] ? gfs2_online_uevent+0x1b0/0x1b0 [ 28.799932] ? pointer+0x9e0/0x9e0 [ 28.803705] ? pointer+0x9e0/0x9e0 [ 28.808170] ? snprintf+0xa5/0xd0 [ 28.812637] ? snprintf+0xa5/0xd0 [ 28.816162] ? vsprintf+0x30/0x30 [ 28.819677] ? vsprintf+0x30/0x30 [ 28.823109] ? gfs2_open+0x160/0x160 [ 28.826538] ? gfs2_open+0x160/0x160 [ 28.829964] ? set_blocksize+0x125/0x380 [ 28.833384] ? set_blocksize+0x125/0x380 [ 28.837070] gfs2_mount+0x439/0x510 [ 28.840763] gfs2_mount+0x439/0x510 [ 28.844802] ? fill_super+0x2310/0x2310 [ 28.848845] ? fill_super+0x2310/0x2310 [ 28.852456] ? alloc_pages_current+0x15d/0x260 [ 28.856056] ? alloc_pages_current+0x15d/0x260 [ 28.859991] ? __lockdep_init_map+0x100/0x560 [ 28.863937] ? __lockdep_init_map+0x100/0x560 [ 28.868492] mount_fs+0x92/0x2a0 [ 28.873042] mount_fs+0x92/0x2a0 [ 28.877512] vfs_kern_mount.part.0+0x5b/0x470 [ 28.881975] vfs_kern_mount.part.0+0x5b/0x470 [ 28.885312] do_mount+0xe65/0x2a30 [ 28.888648] do_mount+0xe65/0x2a30 [ 28.893113] ? retint_kernel+0x2d/0x2d [ 28.897576] ? retint_kernel+0x2d/0x2d [ 28.901083] ? copy_mount_string+0x40/0x40 [ 28.904593] ? copy_mount_string+0x40/0x40 [ 28.908451] ? memset+0x20/0x40 [ 28.912308] ? memset+0x20/0x40 [ 28.916511] ? copy_mount_options+0x1fa/0x2f0 [ 28.920713] ? copy_mount_options+0x1fa/0x2f0 [ 28.923968] ? copy_mnt_ns+0xa30/0xa30 [ 28.927219] ? copy_mnt_ns+0xa30/0xa30 [ 28.931678] SyS_mount+0xa8/0x120 [ 28.936145] SyS_mount+0xa8/0x120 [ 28.940002] ? copy_mnt_ns+0xa30/0xa30 [ 28.943872] ? copy_mnt_ns+0xa30/0xa30 [ 28.947309] do_syscall_64+0x1d5/0x640 [ 28.950740] do_syscall_64+0x1d5/0x640 [ 28.954602] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 28.958456] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 28.962313] RIP: 0033:0x7fed960f96da [ 28.966175] RIP: 0033:0x7fed960f96da [ 28.971337] RSP: 002b:00007ffe2aa950a8 EFLAGS: 00000282 [ 28.976497] RSP: 002b:00007ffe2aa950a8 EFLAGS: 00000282 [ 28.980182] ORIG_RAX: 00000000000000a5 [ 28.983875] ORIG_RAX: 00000000000000a5 [ 28.989212] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fed960f96da [ 28.994546] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fed960f96da [ 28.998493] RDX: 00000000200124c0 RSI: 0000000020000000 RDI: 00007ffe2aa950b0 [ 29.002434] RDX: 00000000200124c0 RSI: 0000000020000000 RDI: 00007ffe2aa950b0 [ 29.009675] RBP: 00007ffe2aa950b0 R08: 00007ffe2aa950f0 R09: 0000000000000002 [ 29.016916] RBP: 00007ffe2aa950b0 R08: 00007ffe2aa950f0 R09: 0000000000000002 [ 29.024160] R10: 0000000000000819 R11: 0000000000000282 R12: 0000000000000004 [ 29.031401] R10: 0000000000000819 R11: 0000000000000282 R12: 0000000000000004 [ 29.038642] R13: 0000555555faa2c0 R14: 00007ffe2aa950f0 R15: 0000000000000000 [ 29.045880] R13: 0000555555faa2c0 R14: 00007ffe2aa950f0 R15: 0000000000000000 [ 29.053128] 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 [ 29.094030] ---[ end trace 3518d34fdd6aad48 ]--- [ 29.098901] Kernel Offset: disabled [ 29.102550] Rebooting in 86400 seconds..