Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000008
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#4] PREEMPT SMP PTI
CPU: 0 PID: 4801 Comm: firefox:cs0 Tainted: G      D            6.8.7-300.fc40.x86_64 #1
Hardware name: Dell Inc. Inspiron 5447/0MHP6R, BIOS A13 05/27/2019
RIP: 0010:drm_sched_job_arm+0x23/0x60 [gpu_sched]
Code: 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 55 53 48 8b 6f 60 48 85 ed 74 3f 48 89 fb 48 89 ef e8 51 39 00 00 48 8b 45 10 <48> 8b 50 08 48 89 53 18 8b 45 24 89 43 5c b8 01 00 00 00 f0 48 0f
RSP: 0018:ffffa31b439cbb18 EFLAGS: 00010206
RAX: 0000000000000000 RBX: ffff96b4814b3c00 RCX: 0000000000000027
RDX: 0000000000000000 RSI: ffff96b3862e4610 RDI: ffff96b3862e4638
RBP: ffff96b3862e4610 R08: 0000000000000000 R09: ffffa31b439cb958
R10: ffffffffa7516808 R11: 0000000000000003 R12: ffffa31b439cbb98
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f68440006c0(0000) GS:ffff96b4d7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000008 CR3: 00000002014c8005 CR4: 00000000001706f0
Call Trace:
 <TASK>
 ? __die+0x23/0x70
 ? page_fault_oops+0x174/0x530
 ? exc_page_fault+0x7f/0x180
 ? asm_exc_page_fault+0x26/0x30
 ? drm_sched_job_arm+0x23/0x60 [gpu_sched]
 ? drm_sched_job_arm+0x1f/0x60 [gpu_sched]
 amdgpu_cs_ioctl+0x141e/0x1950 [amdgpu]
 ? __pfx_amdgpu_cs_ioctl+0x10/0x10 [amdgpu]
 drm_ioctl_kernel+0xb3/0x100
 drm_ioctl+0x26e/0x4b0
 ? __pfx_amdgpu_cs_ioctl+0x10/0x10 [amdgpu]
 amdgpu_drm_ioctl+0x4e/0x90 [amdgpu]
 __x64_sys_ioctl+0x97/0xd0
 do_syscall_64+0x83/0x170
 ? exc_page_fault+0x7f/0x180
 entry_SYSCALL_64_after_hwframe+0x78/0x80
RIP: 0033:0x7f6871526d2d
Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
RSP: 002b:00007f6843fff9c0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6843fffb88 RCX: 00007f6871526d2d
RDX: 00007f6843fffa80 RSI: 00000000c0186444 RDI: 0000000000000029
RBP: 00007f6843fffa10 R08: 00007f6843fffbf0 R09: 00007f6843fffa60
R10: 00007f68712d8000 R11: 0000000000000246 R12: 00007f6843fffa80
R13: 00000000c0186444 R14: 0000000000000029 R15: 0000000000000003
 </TASK>
Modules linked in: snd_seq_dummy snd_hrtimer nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables qrtr sunrpc snd_ctl_led intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal snd_hda_codec_realtek intel_powerclamp snd_hda_codec_hdmi snd_hda_codec_generic coretemp snd_hda_intel binfmt_misc snd_intel_dspcfg kvm_intel snd_intel_sdw_acpi uvcvideo snd_hda_codec cdc_ether uvc videobuf2_vmalloc usbnet vfat fat videobuf2_memops snd_hda_core videobuf2_v4l2 mei_hdcp kvm videobuf2_common dell_laptop mei_pxp snd_hwdep videodev snd_seq iTCO_wdt dell_wmi irqbypass snd_seq_device intel_pmc_bxt rapl mc ledtrig_audio snd_pcm dell_smm_hwmon iTCO_vendor_support mei_me sparse_keymap rtsx_usb_ms dell_smbios at24 intel_cstate memstick dcdbas snd_timer r8152 intel_uncore snd pcspkr dell_wmi_descriptor wmi_bmof mei i2c_i801 soundcore mii lpc_ich
 i2c_smbus dell_rbtn rfkill joydev loop nfnetlink zram amdgpu i915 crct10dif_pclmul crc32_pclmul rtsx_usb_sdmmc r8169 crc32c_intel amdxcp drm_ttm_helper polyval_clmulni i2c_algo_bit drm_exec mmc_core gpu_sched ttm polyval_generic hid_rmi rmi_core drm_suballoc_helper drm_buddy ghash_clmulni_intel sha512_ssse3 sha256_ssse3 drm_display_helper sha1_ssse3 rtsx_usb realtek cec i2c_hid_acpi i2c_hid video wmi pinctrl_lynxpoint hid_multitouch serio_raw ip6_tables ip_tables fuse
CR2: 0000000000000008