[76195.611570] BUG: kernel NULL pointer dereference, address: 0000000000000000
[76195.613059] #PF: supervisor read access in kernel mode
[76195.614174] #PF: error_code(0x0000) - not-present page
[76195.615329] PGD 800000005f27e067 P4D 800000005f27e067 PUD 3f7a3067 PMD 0 
[76195.616801] Oops: 0000 [#67] SMP PTI
[76195.617586] CPU: 2 PID: 239821 Comm: prctl-sched-cor Tainted: G      D W        --------- ---  5.14.0-0.rc5.20210813gitf8e6dfc64f61.46.fc36.x86_64 #1
[76195.620374] Hardware name: HP ProLiant BL480c G1, BIOS I14 10/04/2007
[76195.621771] RIP: 0010:do_raw_spin_trylock+0x5/0x40
[76195.622821] Code: c6 a4 12 5f 9f 48 89 ef e8 c8 fe ff ff eb a9 89 c6 48 89 ef e8 0c f5 ff ff 66 90 eb a9 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 <8b> 07 85 c0 75 28 ba 01 00 00 00 f0 0f b1 17 75 1d 65 8b 05 fb 98
[76195.626797] RSP: 0018:ffffa366014abe58 EFLAGS: 00010086
[76195.627936] RAX: 0000000000000001 RBX: 0000000000000004 RCX: 0000000000000000
[76195.629470] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[76195.631048] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
[76195.632585] R10: 0000000000000000 R11: ffff98292b21ad48 R12: 0000000000000018
[76195.634078] R13: 0000000000000000 R14: ffff98292b7ef940 R15: ffff982813938e00
[76195.635621] FS:  00007f271f8755c0(0000) GS:ffff98292b200000(0000) knlGS:0000000000000000
[76195.637354] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[76195.638606] CR2: 0000000000000000 CR3: 000000000fdd0000 CR4: 00000000000006e0
[76195.640144] Call Trace:
[76195.640706]  _raw_spin_lock_nested+0x37/0x80
[76195.641645]  ? raw_spin_rq_lock_nested+0x4b/0x80
[76195.642693]  raw_spin_rq_lock_nested+0x4b/0x80
[76195.643669]  online_fair_sched_group+0x39/0x240
[76195.644663]  sched_autogroup_create_attach+0x9d/0x170
[76195.645765]  ksys_setsid+0xe6/0x110
[76195.646533]  __do_sys_setsid+0xa/0x10
[76195.647358]  do_syscall_64+0x3b/0x90
[76195.648219]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[76195.649401] RIP: 0033:0x7f271f7496cb
[76195.650241] Code: 73 01 c3 48 8b 0d 5d a7 11 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 70 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 2d a7 11 00 f7 d8 64 89 01 48
[76195.654522] RSP: 002b:00007ffed2ea9888 EFLAGS: 00000206 ORIG_RAX: 0000000000000070
[76195.656275] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f271f7496cb
[76195.657934] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000001
[76195.659566] RBP: 00007ffed2ea98b0 R08: 0000000000000000 R09: 00007f271f8755c0
[76195.661227] R10: 00007f271f67ca60 R11: 0000000000000206 R12: 00007ffed2ea99e8
[76195.662869] R13: 0000000000401176 R14: 00007f271f8adc00 R15: 0000000000403e18
[76195.664510] Modules linked in: rfkill iTCO_wdt intel_pmc_bxt iTCO_vendor_support kvm_intel gpio_ich kvm snd_pcsp snd_pcm snd_timer ipmi_ssif irqbypass snd soundcore lpc_ich acpi_ipmi e1000e tg3 hpilo ipmi_si bnx2 i5000_edac ipmi_devintf i5k_amb ipmi_msghandler fuse zram ip_tables xfs radeon i2c_algo_bit drm_ttm_helper ttm drm_kms_helper cec drm hpsa serio_raw hpwdt scsi_transport_sas
[76195.672185] CR2: 0000000000000000
[76195.672973] ---[ end trace ab4b5b9489802ac5 ]---
[76195.674050] RIP: 0010:__lock_acquire+0x5c1/0x1e00
[76195.675146] Code: 00 00 83 f8 2f 0f 87 59 05 00 00 3b 05 cc 46 f6 02 41 bd 01 00 00 00 0f 86 03 01 00 00 89 05 ba 46 f6 02 e9 f8 00 00 00 31 c9 <48> 81 3f 20 8e cc a0 41 0f 45 c8 83 fe 01 0f 87 6f fa ff ff 89 f0
[76195.679386] RSP: 0018:ffffa36602d5fd40 EFLAGS: 00010046
[76195.680606] RAX: 0000000000000046 RBX: 0000000000000001 RCX: 0000000000000000
[76195.682239] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000018
[76195.683881] RBP: 0000000000000018 R08: 0000000000000001 R09: 0000000000000001
[76195.685554] R10: 0000000000000001 R11: 0000000000000000 R12: ffff98285fad33c0
[76195.687197] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[76195.688840] FS:  00007f271f8755c0(0000) GS:ffff98292b200000(0000) knlGS:0000000000000000
[76195.690690] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[76195.692034] CR2: 0000000000000000 CR3: 000000000fdd0000 CR4: 00000000000006e0
[76195.693677] note: prctl-sched-cor[239821] exited with preempt_count 2