Warning: Permanently added '10.128.0.167' (ECDSA) to the list of known hosts. syzkaller login: [ 42.303842] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 42.312480] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 42.324141] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 42.329070] ------------[ cut here ]------------ [ 42.335563] WARNING: CPU: 1 PID: 7979 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 42.343776] Kernel panic - not syncing: panic_on_warn set ... [ 42.343776] [ 42.345342] ------------[ cut here ]------------ [ 42.351121] CPU: 1 PID: 7979 Comm: syz-executor221 Not tainted 4.14.302-syzkaller #0 [ 42.355863] WARNING: CPU: 0 PID: 7981 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 42.363705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 42.371904] Modules linked in: [ 42.381240] Call Trace: [ 42.384443] dump_stack+0x1b2/0x281 [ 42.386998] CPU: 0 PID: 7981 Comm: syz-executor221 Not tainted 4.14.302-syzkaller #0 [ 42.390598] panic+0x1f9/0x42d [ 42.398442] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 42.401608] ? add_taint.cold+0x16/0x16 [ 42.410959] task: ffff8880b2ec0200 task.stack: ffff8880af288000 [ 42.414908] ? sysfs_warn_dup.cold+0x17/0x26 [ 42.420936] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 42.425314] ? sysfs_warn_dup.cold+0x17/0x26 [ 42.430298] RSP: 0018:ffff8880af28f728 EFLAGS: 00010282 [ 42.434678] __warn.cold+0x20/0x44 [ 42.440020] ? ist_end_non_atomic+0x10/0x10 [ 42.443525] RAX: 000000000000003a RBX: ffff888099d55cd0 RCX: 0000000000000000 [ 42.447818] ? sysfs_warn_dup.cold+0x17/0x26 [ 42.455061] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed1015e51edb [ 42.459444] report_bug+0x208/0x250 [ 42.466684] RBP: ffff8880b1e5cd40 R08: 000000000000003a R09: 0000000000000000 [ 42.470293] do_error_trap+0x195/0x2d0 [ 42.477534] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88823882aa80 [ 42.481393] ? math_error+0x2d0/0x2d0 [ 42.488633] R13: ffff8880b05f0080 R14: ffff888099d55cd8 R15: ffff88809663dc98 [ 42.492406] ? ___preempt_schedule+0x16/0x18 [ 42.499646] FS: 0000555555649300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 [ 42.504027] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.512217] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.512224] CR2: 00007f8c95f30314 CR3: 000000009bf94000 CR4: 00000000003406f0 [ 42.517043] invalid_op+0x1b/0x40 [ 42.522913] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.530156] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 42.533578] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.540819] RSP: 0018:ffff8880967ff728 EFLAGS: 00010282 [ 42.550401] Call Trace: [ 42.562983] sysfs_create_dir_ns+0x16f/0x1d0 [ 42.565535] RAX: 000000000000003a RBX: ffff88809663dc90 RCX: 0000000000000000 [ 42.565540] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed1012cffedb [ 42.569923] kobject_add_internal+0x28b/0x930 [ 42.577176] RBP: ffff88809a7662c0 R08: 000000000000003a R09: 0000000000000000 [ 42.584424] kobject_init_and_add+0xde/0x120 [ 42.588884] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88823882aa80 [ 42.596129] ? kobject_create_and_add+0x200/0x200 [ 42.600505] R13: ffff8880b342fc80 R14: ffff88809663dc98 R15: ffff888095461c58 [ 42.607750] ? vsnprintf+0x260/0x1340 [ 42.612570] ? sysfs_warn_dup.cold+0x17/0x26 [ 42.619814] gfs2_sys_fs_add+0x184/0x3f0 [ 42.623588] sysfs_create_dir_ns+0x16f/0x1d0 [ 42.627966] ? recover_store+0x100/0x100 [ 42.631996] kobject_add_internal+0x28b/0x930 [ 42.636376] ? snprintf+0xa5/0xd0 [ 42.640409] kobject_init_and_add+0xde/0x120 [ 42.644877] ? strscpy+0x94/0x280 [ 42.648309] ? kobject_create_and_add+0x200/0x200 [ 42.652689] fill_super+0x118b/0x2310 [ 42.656111] ? vsnprintf+0x260/0x1340 [ 42.660928] ? vsnprintf+0x260/0x1340 [ 42.664790] gfs2_sys_fs_add+0x184/0x3f0 [ 42.668558] ? gfs2_online_uevent+0x1b0/0x1b0 [ 42.672330] ? recover_store+0x100/0x100 [ 42.676364] ? pointer+0x9e0/0x9e0 [ 42.680828] ? snprintf+0xa5/0xd0 [ 42.684861] ? snprintf+0xa5/0xd0 [ 42.688371] ? strscpy+0x94/0x280 [ 42.691792] ? vsprintf+0x30/0x30 [ 42.695223] fill_super+0x118b/0x2310 [ 42.698645] ? gfs2_open+0x160/0x160 [ 42.702072] ? vsnprintf+0x260/0x1340 [ 42.705841] ? set_blocksize+0x125/0x380 [ 42.709529] ? gfs2_online_uevent+0x1b0/0x1b0 [ 42.713302] gfs2_mount+0x439/0x510 [ 42.717330] ? pointer+0x9e0/0x9e0 [ 42.721798] ? fill_super+0x2310/0x2310 [ 42.725398] ? snprintf+0xa5/0xd0 [ 42.728920] ? alloc_pages_current+0x15d/0x260 [ 42.732862] ? vsprintf+0x30/0x30 [ 42.736287] ? __lockdep_init_map+0x100/0x560 [ 42.740836] ? gfs2_open+0x160/0x160 [ 42.744282] mount_fs+0x92/0x2a0 [ 42.748765] ? set_blocksize+0x125/0x380 [ 42.752450] vfs_kern_mount.part.0+0x5b/0x470 [ 42.755791] gfs2_mount+0x439/0x510 [ 42.759823] do_mount+0xe65/0x2a30 [ 42.764292] ? fill_super+0x2310/0x2310 [ 42.767892] ? copy_mount_string+0x40/0x40 [ 42.771413] ? alloc_pages_current+0x15d/0x260 [ 42.775352] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 42.779559] ? __lockdep_init_map+0x100/0x560 [ 42.784117] ? copy_mnt_ns+0xa30/0xa30 [ 42.789103] mount_fs+0x92/0x2a0 [ 42.793567] ? copy_mount_options+0x1fa/0x2f0 [ 42.797424] vfs_kern_mount.part.0+0x5b/0x470 [ 42.800762] ? copy_mnt_ns+0xa30/0xa30 [ 42.805229] do_mount+0xe65/0x2a30 [ 42.809708] SyS_mount+0xa8/0x120 [ 42.813577] ? retint_kernel+0x2d/0x2d [ 42.817089] ? copy_mnt_ns+0xa30/0xa30 [ 42.820515] ? copy_mount_string+0x40/0x40 [ 42.824375] do_syscall_64+0x1d5/0x640 [ 42.828236] ? copy_mount_options+0x188/0x2f0 [ 42.832444] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 42.836299] ? copy_mount_options+0x1fa/0x2f0 [ 42.840778] RIP: 0033:0x7f8c95ed96aa [ 42.845940] ? copy_mnt_ns+0xa30/0xa30 [ 42.850401] RSP: 002b:00007fffcd514588 EFLAGS: 00000282 [ 42.854088] SyS_mount+0xa8/0x120 [ 42.857940] ORIG_RAX: 00000000000000a5 [ 42.863276] ? copy_mnt_ns+0xa30/0xa30 [ 42.866699] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8c95ed96aa [ 42.870656] do_syscall_64+0x1d5/0x640 [ 42.874511] RDX: 00000000200124c0 RSI: 0000000020000080 RDI: 00007fffcd514590 [ 42.881761] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 42.885616] RBP: 00007fffcd514590 R08: 00007fffcd5145d0 R09: 0000000000000002 [ 42.892862] RIP: 0033:0x7f8c95ed96aa [ 42.898018] R10: 0000000000010011 R11: 0000000000000282 R12: 0000000000000004 [ 42.905258] RSP: 002b:00007fffcd514588 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 42.908948] R13: 00005555556492c0 R14: 00007fffcd5145d0 R15: 0000000000000000 [ 42.916192] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8c95ed96aa [ 42.923883] Code: [ 42.931121] RDX: 00000000200124c0 RSI: 0000000020000080 RDI: 00007fffcd514590 [ 42.938361] bd [ 42.940496] RBP: 00007fffcd514590 R08: 00007fffcd5145d0 R09: 0000000000000002 [ 42.947742] ea [ 42.949606] R10: 0000000000010011 R11: 0000000000000282 R12: 0000000000000004 [ 42.956848] ff [ 42.958719] R13: 00005555556492c0 R14: 00007fffcd5145d0 R15: 0000000000000000 [ 42.965957] 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 [ 42.992984] ---[ end trace 0184589ffdd7a9b0 ]--- [ 42.998022] Kernel Offset: disabled [ 43.001684] Rebooting in 86400 seconds..