Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000040
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: Oops: 0000 [#1] SMP PTI
CPU: 0 UID: 1000 PID: 2272 Comm: gnome-shell Not tainted 6.18.6-100.fc42.x86_64 #1 PREEMPT(lazy) 
Hardware name: System manufacturer System Product Name/PRIME Z270-P, BIOS 0321 11/24/2016
RIP: 0010:nouveau_fence_sync+0x12c/0x1b0 [nouveau]
Code: 74 08 48 3d e0 02 9b c0 75 aa e8 1f cc 8e fa 49 8b 76 50 48 85 f6 74 97 48 8b 85 f0 00 00 00 48 8b 96 f0 00 00 00 48 8b 40 40 <48> 39 42 40 0f 85 7b ff ff ff 48 39 f5 74 17 49 8b 47 30 48 89 ea
RSP: 0018:ffffcff04a157ac0 EFLAGS: 00010286
RAX: ffff8a758c348000 RBX: ffffcff04a157ad8 RCX: ffff8a771f2dee00
RDX: 0000000000000000 RSI: ffff8a770c116000 RDI: ffffcff04a157ad8
RBP: ffff8a75ff72e400 R08: ffff8a7836d70c00 R09: 0000000000000002
R10: 00000000000000b1 R11: ffff8a758205ac50 R12: 0000000000000001
R13: 0000000000000000 R14: ffff8a758195f360 R15: ffff8a7580dd5300
FS:  00007fa0a8d86680(0000) GS:ffff8a78d8629000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000040 CR3: 0000000107a6e005 CR4: 00000000003706f0
Call Trace:
 <TASK>
 validate_list+0xdd/0x200 [nouveau]
 nouveau_gem_ioctl_pushbuf+0x287/0xa90 [nouveau]
 ? __pfx_nouveau_gem_ioctl_pushbuf+0x10/0x10 [nouveau]
 ? __pfx_nouveau_gem_ioctl_pushbuf+0x10/0x10 [nouveau]
 drm_ioctl_kernel+0xae/0x100
 drm_ioctl+0x2a8/0x550
 ? __pfx_nouveau_gem_ioctl_pushbuf+0x10/0x10 [nouveau]
 nouveau_drm_ioctl+0x58/0xc0 [nouveau]
 __x64_sys_ioctl+0x97/0xe0
 do_syscall_64+0x7e/0x7f0
 ? task_work_run+0x5d/0x90
 ? exit_to_user_mode_loop+0xdf/0x170
 ? do_syscall_64+0xb6/0x7f0
 ? do_syscall_64+0xb6/0x7f0
 ? irqentry_exit_to_user_mode+0x2c/0x1c0
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fa0ac9000ed
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:00007ffe88f22460 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000055d5a3f2e210 RCX: 00007fa0ac9000ed
RDX: 00007ffe88f22520 RSI: 00000000c0406481 RDI: 000000000000000f
RBP: 00007ffe88f224b0 R08: 000055d5a3f34460 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe88f22520
R13: 00000000c0406481 R14: 000000000000000f R15: 000055d5a3f34460
 </TASK>
Modules linked in: binfmt_misc uinput snd_seq_dummy snd_hrtimer qrtr sunrpc snd_soc_avs snd_hda_codec_alc882 snd_soc_hda_codec snd_hda_codec_nvhdmi snd_hda_codec_realtek_lib snd_hda_codec_generic snd_hda_ext_core snd_hda_codec_hdmi vfat fat snd_hda_intel snd_hda_codec intel_rapl_msr snd_hda_core intel_rapl_common snd_intel_dspcfg snd_soc_core snd_compress iTCO_wdt ac97_bus eeepc_wmi intel_tcc_cooling intel_pmc_bxt x86_pkg_temp_thermal snd_intel_sdw_acpi snd_pcm_dmaengine snd_hwdep intel_pmc_core asus_wmi intel_powerclamp iTCO_vendor_support ee1004 pmt_telemetry snd_seq sparse_keymap coretemp snd_seq_device platform_profile pmt_discovery mei_pxp snd_pcm mei_hdcp pmt_class rfkill intel_pmc_ssram_telemetry rapl r8169 snd_timer joydev intel_cstate i2c_i801 intel_vsec mei_me intel_uncore i2c_smbus mei wmi_bmof realtek acpi_pad snd soundcore pcspkr loop nfnetlink zram lz4hc_compress lz4_compress nouveau drm_ttm_helper ttm gpu_sched i2c_algo_bit drm_gpuvm drm_exec mxm_wmi polyval_clmulni ghash_clmulni_intel
 serio_raw drm_display_helper intel_oc_wdt video cec wmi i2c_dev fuse
CR2: 0000000000000040