program:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./cgroup.cpu/test\x00', 0x777)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./cgroup.cpu/test/memory.limit_in_bytes\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='10000', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./cgroup.cpu/test/memory.oom_control\x00', 0x2, 0x0)
write(r1, &(0x7f0000000200)='1', 0x1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./cgroup.cpu/test/cgroup.procs\x00', 0x2, 0x0)
write(r2, &(0x7f0000000280)='0', 0x1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracefs\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./tracefs\x00', &(0x7f0000000040)='tracefs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./tracefs/instances/foo\x00', 0x1ff)
[ 124.564301][ T5320] oom_control is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality.
[ 124.573451][ T4642] Bluetooth: hci0: command tx timeout
[ 124.693801][ T5320] Could not create tracefs 'show_event_triggers' entry
[ 124.706697][ T5320] Could not create tracefs 'set_event_pid' entry
[ 124.722593][ T5320] Could not create tracefs 'set_event_notrace_pid' entry
[ 124.738029][ T5320] ------------[ cut here ]------------
[ 124.741141][ T5320] !list_empty(&ei->children)
[ 124.741155][ T5320] WARNING: fs/tracefs/event_inode.c:128 at free_ei+0x284/0x340, CPU#0: syz.0.0/5320
[ 124.747336][ T5320] Modules linked in:
[ 124.749157][ T5320] CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 124.752889][ T5320] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 124.757202][ T5320] RIP: 0010:free_ei+0x284/0x340
[ 124.759343][ T5320] Code: 48 c7 c7 20 87 32 8f 48 89 de 48 c7 c2 80 67 df 83 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d e9 72 dd cb fd e8 ad c9 e7 fd 90 <0f> 0b 90 e9 c7 fd ff ff e8 9f c9 e7 fd 90 0f 0b 90 48 b8 00 00 00
[ 124.767529][ T5320] RSP: 0018:ffffc9000e3a7a88 EFLAGS: 00010287
[ 124.770299][ T5320] RAX: ffffffff83df6b13 RBX: ffff888012e29890 RCX: 0000000000100000
[ 124.773894][ T5320] RDX: ffffc9000ebea000 RSI: 000000000007b154 RDI: 000000000007b155
[ 124.777186][ T5320] RBP: ffff888012e29880 R08: 00000000ffffffff R09: 1ffffffff20f1f46
[ 124.780684][ T5320] R10: dffffc0000000000 R11: fffffbfff20f1f47 R12: 0000000000000000
[ 124.784670][ T5320] R13: ffff888012787000 R14: ffff888012e29880 R15: 0000000000000003
[ 124.788263][ T5320] FS: 00007f39244506c0(0000) GS:ffff88808c30a000(0000) knlGS:0000000000000000
[ 124.792002][ T5320] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 124.794938][ T5320] CR2: 0000559e67342478 CR3: 000000001240a000 CR4: 0000000000352ef0
[ 124.798292][ T5320] Call Trace:
[ 124.799656][ T5320]
[ 124.800974][ T5320] ? new_inode+0x13a/0x170
[ 124.803092][ T5320] ? tracefs_get_inode+0x11/0x80
[ 124.805206][ T5320] eventfs_create_events_dir+0x7c4/0x9f0
[ 124.807559][ T5320] create_event_toplevel_files+0x11e/0x1a0
[ 124.810206][ T5320] event_trace_add_tracer+0x8a/0x3b0
[ 124.812582][ T5320] trace_array_create_dir+0x77/0x160
[ 124.815015][ T5320] trace_array_create_systems+0xb3c/0xe60
[ 124.817279][ T5320] instance_mkdir+0xd5/0x140
[ 124.819213][ T5320] tracefs_syscall_mkdir+0x11a/0x190
[ 124.821497][ T5320] ? __pfx_tracefs_syscall_mkdir+0x10/0x10
[ 124.824277][ T5320] ? generic_permission+0x2bf/0x670
[ 124.826756][ T5320] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 124.828866][ T5320] vfs_mkdir+0x40c/0x620
[ 124.830689][ T5320] filename_mkdirat+0x285/0x510
[ 124.832796][ T5320] ? __pfx_filename_mkdirat+0x10/0x10
[ 124.835357][ T5320] ? do_getname+0x151/0x250
[ 124.837336][ T5320] __se_sys_mkdirat+0x35/0x150
[ 124.839480][ T5320] do_syscall_64+0x166/0x520
[ 124.841576][ T5320] ? trace_irq_disable+0x3b/0x140
[ 124.844480][ T5320] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 124.847415][ T5320] ? clear_bhb_loop+0x70/0xc0
[ 124.849517][ T5320] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 124.852136][ T5320] RIP: 0033:0x7f392359e159
[ 124.854317][ T5320] 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
[ 124.862492][ T5320] RSP: 002b:00007f392444ffe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[ 124.866007][ T5320] RAX: ffffffffffffffda RBX: 00007f3923825fa0 RCX: 00007f392359e159
[ 124.869143][ T5320] RDX: 00000000000001ff RSI: 0000200000000140 RDI: ffffffffffffff9c
[ 124.872379][ T5320] RBP: 00007f3923635024 R08: 0000000000000000 R09: 0000000000000000
[ 124.875773][ T5320] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 124.879071][ T5320] R13: 00007f3923826038 R14: 00007f3923825fa0 R15: 00007ffe21710988
[ 124.882515][ T5320]
[ 124.884043][ T5320] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 124.887847][ T5320] CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 124.891614][ T5320] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 124.896250][ T5320] Call Trace:
[ 124.897672][ T5320]
[ 124.898952][ T5320] vpanic+0x56d/0xa60
[ 124.900755][ T5320] ? __pfx__printk+0x10/0x10
[ 124.902853][ T5320] ? __pfx_vpanic+0x10/0x10
[ 124.904851][ T5320] ? is_bpf_text_address+0x292/0x2b0
[ 124.907133][ T5320] ? is_bpf_text_address+0x26/0x2b0
[ 124.909349][ T5320] panic+0xc5/0xd0
[ 124.910957][ T5320] ? __pfx_panic+0x10/0x10
[ 124.912960][ T5320] __warn+0x315/0x4c0
[ 124.914700][ T5320] ? free_ei+0x284/0x340
[ 124.916561][ T5320] ? free_ei+0x284/0x340
[ 124.918352][ T5320] __report_bug+0x276/0x570
[ 124.920358][ T5320] ? free_ei+0x284/0x340
[ 124.922214][ T5320] ? __pfx___report_bug+0x10/0x10
[ 124.924369][ T5320] ? kasan_quarantine_put+0xbb/0x1f0
[ 124.926632][ T5320] ? free_ei+0x284/0x340
[ 124.928457][ T5320] report_bug+0x16b/0x220
[ 124.930301][ T5320] ? free_ei+0x284/0x340
[ 124.932114][ T5320] ? free_ei+0x286/0x340
[ 124.933851][ T5320] handle_bug+0x9c/0x200
[ 124.935755][ T5320] exc_invalid_op+0x1a/0x50
[ 124.937689][ T5320] asm_exc_invalid_op+0x1a/0x20
[ 124.939758][ T5320] RIP: 0010:free_ei+0x284/0x340
[ 124.941897][ T5320] Code: 48 c7 c7 20 87 32 8f 48 89 de 48 c7 c2 80 67 df 83 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d e9 72 dd cb fd e8 ad c9 e7 fd 90 <0f> 0b 90 e9 c7 fd ff ff e8 9f c9 e7 fd 90 0f 0b 90 48 b8 00 00 00
[ 124.949936][ T5320] RSP: 0018:ffffc9000e3a7a88 EFLAGS: 00010287
[ 124.952562][ T5320] RAX: ffffffff83df6b13 RBX: ffff888012e29890 RCX: 0000000000100000
[ 124.955972][ T5320] RDX: ffffc9000ebea000 RSI: 000000000007b154 RDI: 000000000007b155
[ 124.959254][ T5320] RBP: ffff888012e29880 R08: 00000000ffffffff R09: 1ffffffff20f1f46
[ 124.962562][ T5320] R10: dffffc0000000000 R11: fffffbfff20f1f47 R12: 0000000000000000
[ 124.965758][ T5320] R13: ffff888012787000 R14: ffff888012e29880 R15: 0000000000000003
[ 124.969002][ T5320] ? free_ei+0x283/0x340
[ 124.970836][ T5320] ? free_ei+0x283/0x340
[ 124.972638][ T5320] ? new_inode+0x13a/0x170
[ 124.974644][ T5320] ? tracefs_get_inode+0x11/0x80
[ 124.976773][ T5320] eventfs_create_events_dir+0x7c4/0x9f0
[ 124.979190][ T5320] create_event_toplevel_files+0x11e/0x1a0
[ 124.981621][ T5320] event_trace_add_tracer+0x8a/0x3b0
[ 124.984007][ T5320] trace_array_create_dir+0x77/0x160
[ 124.986202][ T5320] trace_array_create_systems+0xb3c/0xe60
[ 124.988499][ T5320] instance_mkdir+0xd5/0x140
[ 124.990480][ T5320] tracefs_syscall_mkdir+0x11a/0x190
[ 124.992721][ T5320] ? __pfx_tracefs_syscall_mkdir+0x10/0x10
[ 124.995193][ T5320] ? generic_permission+0x2bf/0x670
[ 124.997469][ T5320] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 124.999572][ T5320] vfs_mkdir+0x40c/0x620
[ 125.001320][ T5320] filename_mkdirat+0x285/0x510
[ 125.003361][ T5320] ? __pfx_filename_mkdirat+0x10/0x10
[ 125.005664][ T5320] ? do_getname+0x151/0x250
[ 125.007658][ T5320] __se_sys_mkdirat+0x35/0x150
[ 125.009609][ T5320] do_syscall_64+0x166/0x520
[ 125.011664][ T5320] ? trace_irq_disable+0x3b/0x140
[ 125.013788][ T5320] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 125.016429][ T5320] ? clear_bhb_loop+0x70/0xc0
[ 125.018302][ T5320] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 125.020691][ T5320] RIP: 0033:0x7f392359e159
[ 125.022449][ T5320] 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
[ 125.030150][ T5320] RSP: 002b:00007f392444ffe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[ 125.033620][ T5320] RAX: ffffffffffffffda RBX: 00007f3923825fa0 RCX: 00007f392359e159
[ 125.036862][ T5320] RDX: 00000000000001ff RSI: 0000200000000140 RDI: ffffffffffffff9c
[ 125.040134][ T5320] RBP: 00007f3923635024 R08: 0000000000000000 R09: 0000000000000000
[ 125.043379][ T5320] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 125.046401][ T5320] R13: 00007f3923826038 R14: 00007f3923825fa0 R15: 00007ffe21710988
[ 125.049589][ T5320]
[ 125.051381][ T5320] Kernel Offset: disabled
[ 125.053168][ T5320] Rebooting in 86400 seconds..