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 [#2] PREEMPT SMP PTI
CPU: 0 PID: 2370 Comm: gst-plugin:cs0 Tainted: G      D            6.8.7-300.fc40.x86_64 #1
Hardware name: Dell Inc. Inspiron 5547/0K5C1C, 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:ffffb875423d3ac0 EFLAGS: 00010206
RAX: 0000000000000000 RBX: ffff93b54624b800 RCX: 0000000000000027
RDX: 0000000000000000 RSI: ffff93b546234e10 RDI: ffff93b546234e38
RBP: ffff93b546234e10 R08: 0000000000000000 R09: ffffb875423d3900
R10: ffffffffa5516808 R11: 0000000000000003 R12: ffffb875423d3b40
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f53e84006c0(0000) GS:ffff93b88f200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000008 CR3: 00000001502a0001 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]
 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
 ? handle_mm_fault+0x1f2/0x350
 ? switch_fpu_return+0x4f/0xe0
 entry_SYSCALL_64_after_hwframe+0x78/0x80
RIP: 0033:0x7f53f198dd2d
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:00007f53e83ffad0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f53e83ffc98 RCX: 00007f53f198dd2d
RDX: 00007f53e83ffb90 RSI: 00000000c0186444 RDI: 000000000000000b
RBP: 00007f53e83ffb20 R08: 00007f53e83ffd00 R09: 00007f53e83ffb70
R10: 00005562d1eebe30 R11: 0000000000000246 R12: 00007f53e83ffb90
R13: 00000000c0186444 R14: 000000000000000b R15: 0000000000000003
 </TASK>
Modules linked in: rfcomm snd_seq_dummy snd_hrtimer bnep 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 snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi intel_rapl_msr snd_hda_intel intel_rapl_common x86_pkg_temp_thermal intel_powerclamp snd_intel_dspcfg snd_intel_sdw_acpi ath9k snd_hda_codec ath9k_common coretemp kvm_intel ath9k_hw snd_hda_core uvcvideo ath3k uvc dell_laptop btusb videobuf2_vmalloc iTCO_wdt videobuf2_memops intel_pmc_bxt mei_pxp at24 mei_hdcp dell_smm_hwmon iTCO_vendor_support btrtl btintel kvm dell_wmi snd_hwdep videobuf2_v4l2 mac80211 btbcm binfmt_misc snd_seq dell_smbios btmtk irqbypass dcdbas videobuf2_common rtsx_usb_ms rapl snd_seq_device libarc4 vfat videodev wmi_bmof memstick dell_wmi_descriptor intel_cstate pcspkr ledtrig_audio ath bluetooth intel_uncore
 fat sparse_keymap cfg80211 snd_pcm mc i2c_i801 lpc_ich i2c_smbus mei_me mei snd_timer snd soundcore dell_rbtn rfkill joydev loop nfnetlink zram amdgpu i915 crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni rtsx_usb_sdmmc polyval_generic mmc_core amdxcp drm_ttm_helper drm_exec i2c_algo_bit ttm gpu_sched ghash_clmulni_intel hid_rmi drm_suballoc_helper rmi_core r8169 sha512_ssse3 drm_buddy sha256_ssse3 drm_display_helper sha1_ssse3 realtek cec rtsx_usb i2c_hid_acpi i2c_hid video pinctrl_lynxpoint wmi hid_multitouch serio_raw ip6_tables ip_tables fuse
CR2: 0000000000000008