program:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000040)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/dlm\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./config/dlm/cluster\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/dlm/cluster/comms\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./config/dlm/cluster/comms/1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/dlm/cluster/comms/2\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./config/dlm/cluster/comms/1/local\x00', 0x1, 0x0)
write(r0, &(0x7f0000000200)='1\x00', 0x2)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./config/dlm/cluster/comms/1/addr\x00', 0x1, 0x0)
write(r1, &(0x7f0000000280)="020052487f00000100"/128, 0x80)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/dlm/cluster/comms/2/local\x00', 0x1, 0x0)
write(r2, &(0x7f0000000340)='0\x00', 0x2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000380)='./config/dlm/cluster/comms/2/addr\x00', 0x1, 0x0)
write(r3, &(0x7f00000003c0)="020052487f00000100"/128, 0x80)
openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000440), 0x0, 0x0)
r4 = openat$dlm_control(0xffffffffffffff9c, &(0x7f0000000480), 0x1, 0x0)
write(r4, &(0x7f00000004c0)="0600000000000000020000000400000000000000000000006c733100"/128, 0x80)
r5 = socket$inet_tcp(0x2, 0x1, 0x0)
connect(r5, &(0x7f0000000540)=@in={0x2, 0x5248, @loopback}, 0x80)
sendto$inet(r5, &(0x7f0000000580)="02000300000000000200000028000300050000000000000002000300000000000200000010000500", 0x28, 0x0, 0x0, 0x0)
[ 87.559525][ T5277] Bluetooth: hci0: command tx timeout
[ 87.649185][ T5314] dlm: Using TCP for communications
[ 87.661694][ T5314] dlm: ls1: can't start dlm_recoverd -4
[ 87.662044][ T5314] ------------[ cut here ]------------
[ 87.662066][ T5314] kobject: '(null)' (ffff88803e63a088): is not initialized, yet kobject_put() is being called.
[ 87.662089][ T5314] WARNING: lib/kobject.c:736 at kobject_put+0x66/0x550, CPU#0: syz.0.0/5314
[ 87.674641][ T5314] Modules linked in:
[ 87.675960][ T5314] CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 87.678944][ T5314] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 87.682303][ T5314] RIP: 0010:kobject_put+0x8e/0x550
[ 87.684165][ T5314] Code: b0 04 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 3b b5 5c f6 48 8b 33 4c 89 f7 48 89 da <67> 48 0f b9 3a eb 05 e8 66 4d eb f5 4c 8d 73 38 4c 89 f7 be 04 00
[ 87.690758][ T5314] RSP: 0018:ffffc9000e45f9f0 EFLAGS: 00010246
[ 87.692786][ T5314] RAX: 1ffff11007cc7411 RBX: ffff88803e63a088 RCX: dffffc0000000000
[ 87.695505][ T5314] RDX: ffff88803e63a088 RSI: 0000000000000000 RDI: ffffffff908d3da0
[ 87.698271][ T5314] RBP: 0000000000000000 R08: ffffffff907a377f R09: 1ffffffff20f46ef
[ 87.700963][ T5314] R10: dffffc0000000000 R11: fffffbfff20f46f0 R12: 1ffff11007cc7418
[ 87.703715][ T5314] R13: ffffffff9aaca1c8 R14: ffffffff908d3da0 R15: 00000000fffffffc
[ 87.706446][ T5314] FS: 00007fb79ceb56c0(0000) GS:ffff88808c2cf000(0000) knlGS:0000000000000000
[ 87.709523][ T5314] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 87.711807][ T5314] CR2: 0000200000000540 CR3: 000000001218f000 CR4: 0000000000352ef0
[ 87.714577][ T5314] Call Trace:
[ 87.715740][ T5314]
[ 87.716768][ T5314] __dlm_new_lockspace+0x1714/0x1cd0
[ 87.718671][ T5314] ? __pfx___dlm_new_lockspace+0x10/0x10
[ 87.721005][ T5314] ? apparmor_capable+0x126/0x170
[ 87.723013][ T5314] ? bpf_lsm_capable+0x9/0x20
[ 87.724668][ T5314] ? security_capable+0x7e/0x2c0
[ 87.726353][ T5314] ? dlm_new_user_lockspace+0x3e/0x80
[ 87.728430][ T5314] device_create_lockspace+0xc7/0x350
[ 87.730249][ T5314] ? kasan_quarantine_put+0xbb/0x1f0
[ 87.732104][ T5314] ? __pfx_device_create_lockspace+0x10/0x10
[ 87.734161][ T5314] ? kfree+0x1c5/0x650
[ 87.735586][ T5314] ? device_write+0x77a/0xed0
[ 87.737249][ T5314] device_write+0x872/0xed0
[ 87.738924][ T5314] ? __pfx_device_write+0x10/0x10
[ 87.740713][ T5314] vfs_write+0x296/0xba0
[ 87.742231][ T5314] ? __pfx_vfs_write+0x10/0x10
[ 87.743866][ T5314] ? __fget_files+0x2a/0x420
[ 87.745536][ T5314] ? __fget_files+0x2a/0x420
[ 87.747287][ T5314] ? __fget_files+0x3a2/0x420
[ 87.748956][ T5314] ? __fget_files+0x2a/0x420
[ 87.750613][ T5314] ksys_write+0x150/0x270
[ 87.752141][ T5314] ? __pfx_ksys_write+0x10/0x10
[ 87.753853][ T5314] do_syscall_64+0x166/0x520
[ 87.755560][ T5314] ? trace_irq_disable+0x3b/0x140
[ 87.757319][ T5314] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 87.759718][ T5314] ? clear_bhb_loop+0x70/0xc0
[ 87.761491][ T5314] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 87.763658][ T5314] RIP: 0033:0x7fb79bf9e159
[ 87.765385][ T5314] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 87.772325][ T5314] RSP: 002b:00007fb79ceb4fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 87.775476][ T5314] RAX: ffffffffffffffda RBX: 00007fb79c225fa0 RCX: 00007fb79bf9e159
[ 87.778323][ T5314] RDX: 0000000000000080 RSI: 00002000000004c0 RDI: 0000000000000008
[ 87.781150][ T5314] RBP: 00007fb79c035024 R08: 0000000000000000 R09: 0000000000000000
[ 87.783893][ T5314] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 87.786611][ T5314] R13: 00007fb79c226038 R14: 00007fb79c225fa0 R15: 00007ffe2c6ad938
[ 87.789713][ T5314]
[ 87.791038][ T5314] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 87.793485][ T5314] CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 87.796574][ T5314] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 87.800635][ T5314] Call Trace:
[ 87.802177][ T5314]
[ 87.803554][ T5314] vpanic+0x56d/0xa60
[ 87.805411][ T5314] ? __pfx__printk+0x10/0x10
[ 87.807530][ T5314] ? __pfx_vpanic+0x10/0x10
[ 87.809602][ T5314] ? is_bpf_text_address+0x292/0x2b0
[ 87.812001][ T5314] ? is_bpf_text_address+0x26/0x2b0
[ 87.813799][ T5314] panic+0xc5/0xd0
[ 87.815140][ T5314] ? __pfx_panic+0x10/0x10
[ 87.816708][ T5314] __warn+0x315/0x4c0
[ 87.818294][ T5314] ? kobject_put+0x66/0x550
[ 87.820286][ T5314] ? kobject_put+0x66/0x550
[ 87.822255][ T5314] __report_bug+0x276/0x570
[ 87.824170][ T5314] ? vfs_write+0x296/0xba0
[ 87.825783][ T5314] ? ksys_write+0x150/0x270
[ 87.827320][ T5314] ? do_syscall_64+0x166/0x520
[ 87.829411][ T5314] ? kobject_put+0x66/0x550
[ 87.831626][ T5314] ? __pfx___report_bug+0x10/0x10
[ 87.833837][ T5314] report_bug_entry+0x19b/0x290
[ 87.835897][ T5314] ? kobject_put+0x8e/0x550
[ 87.837458][ T5314] ? kobject_put+0x93/0x550
[ 87.838951][ T5314] handle_bug+0xce/0x200
[ 87.840304][ T5314] exc_invalid_op+0x1a/0x50
[ 87.841762][ T5314] asm_exc_invalid_op+0x1a/0x20
[ 87.843311][ T5314] RIP: 0010:kobject_put+0x8e/0x550
[ 87.845042][ T5314] Code: b0 04 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 3b b5 5c f6 48 8b 33 4c 89 f7 48 89 da <67> 48 0f b9 3a eb 05 e8 66 4d eb f5 4c 8d 73 38 4c 89 f7 be 04 00
[ 87.851597][ T5314] RSP: 0018:ffffc9000e45f9f0 EFLAGS: 00010246
[ 87.853644][ T5314] RAX: 1ffff11007cc7411 RBX: ffff88803e63a088 RCX: dffffc0000000000
[ 87.856361][ T5314] RDX: ffff88803e63a088 RSI: 0000000000000000 RDI: ffffffff908d3da0
[ 87.859219][ T5314] RBP: 0000000000000000 R08: ffffffff907a377f R09: 1ffffffff20f46ef
[ 87.862615][ T5314] R10: dffffc0000000000 R11: fffffbfff20f46f0 R12: 1ffff11007cc7418
[ 87.865997][ T5314] R13: ffffffff9aaca1c8 R14: ffffffff908d3da0 R15: 00000000fffffffc
[ 87.869410][ T5314] __dlm_new_lockspace+0x1714/0x1cd0
[ 87.871680][ T5314] ? __pfx___dlm_new_lockspace+0x10/0x10
[ 87.874100][ T5314] ? apparmor_capable+0x126/0x170
[ 87.876299][ T5314] ? bpf_lsm_capable+0x9/0x20
[ 87.878359][ T5314] ? security_capable+0x7e/0x2c0
[ 87.880506][ T5314] ? dlm_new_user_lockspace+0x3e/0x80
[ 87.882551][ T5314] device_create_lockspace+0xc7/0x350
[ 87.884426][ T5314] ? kasan_quarantine_put+0xbb/0x1f0
[ 87.886264][ T5314] ? __pfx_device_create_lockspace+0x10/0x10
[ 87.888345][ T5314] ? kfree+0x1c5/0x650
[ 87.889767][ T5314] ? device_write+0x77a/0xed0
[ 87.891440][ T5314] device_write+0x872/0xed0
[ 87.893022][ T5314] ? __pfx_device_write+0x10/0x10
[ 87.894798][ T5314] vfs_write+0x296/0xba0
[ 87.896276][ T5314] ? __pfx_vfs_write+0x10/0x10
[ 87.897879][ T5314] ? __fget_files+0x2a/0x420
[ 87.899392][ T5314] ? __fget_files+0x2a/0x420
[ 87.900914][ T5314] ? __fget_files+0x3a2/0x420
[ 87.902445][ T5314] ? __fget_files+0x2a/0x420
[ 87.903932][ T5314] ksys_write+0x150/0x270
[ 87.905330][ T5314] ? __pfx_ksys_write+0x10/0x10
[ 87.907055][ T5314] do_syscall_64+0x166/0x520
[ 87.908657][ T5314] ? trace_irq_disable+0x3b/0x140
[ 87.910456][ T5314] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 87.912621][ T5314] ? clear_bhb_loop+0x70/0xc0
[ 87.914301][ T5314] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 87.916357][ T5314] RIP: 0033:0x7fb79bf9e159
[ 87.917953][ T5314] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 87.924825][ T5314] RSP: 002b:00007fb79ceb4fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 87.927768][ T5314] RAX: ffffffffffffffda RBX: 00007fb79c225fa0 RCX: 00007fb79bf9e159
[ 87.930314][ T5314] RDX: 0000000000000080 RSI: 00002000000004c0 RDI: 0000000000000008
[ 87.932905][ T5314] RBP: 00007fb79c035024 R08: 0000000000000000 R09: 0000000000000000
[ 87.935933][ T5314] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 87.939167][ T5314] R13: 00007fb79c226038 R14: 00007fb79c225fa0 R15: 00007ffe2c6ad938
[ 87.942472][ T5314]
[ 87.944179][ T5314] Kernel Offset: disabled
[ 87.946039][ T5314] Rebooting in 86400 seconds..