Backtrace

BUG: kernel NULL pointer dereference, address: 000000000000000c
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] SMP PTI
CPU: 6 PID: 1266 Comm: gnome-shell Tainted: P           OE     5.11.12-300.fc34.x86_64 #1
Hardware name: Acer Nitro AN515-52/Freed_CFS, BIOS V1.28 08/05/2019
RIP: 0010:drm_gem_map_dma_buf+0x3f/0xb0 [drm]
Code: 00 00 83 fe 03 74 6d 48 8b 87 40 01 00 00 48 8b 40 38 48 85 c0 74 6f 41 89 f5 e8 5c dd a9 f4 49 89 c4 48 3d 00 f0 ff ff 77 21 <8b> 50 0c 48 8b 7b 08 41 b8 20 00 00 00 44 89 e9 48 8b 30 e8 b9 c0
RSP: 0018:ffffb7d5c1f439c0 EFLAGS: 00010207
RAX: 0000000000000000 RBX: ffff9311c7589960 RCX: 0000000000000000
RDX: ffff9312e65a6ba0 RSI: ffff9312e6598ac0 RDI: ffff9312e6598ac0
RBP: ffff9311c7589960 R08: 0000000000000000 R09: ffffb7d5c1f43760
R10: ffffb7d5c1f43758 R11: ffffffffb5b44f08 R12: 0000000000000000
R13: 0000000000000000 R14: ffff9311cd272d00 R15: ffff9311c756c8a0
FS:  00007f09b1107d80(0000) GS:ffff9312e6580000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000000000c CR3: 0000000133e9e003 CR4: 00000000003706e0
Call Trace:
 dma_buf_map_attachment+0x7e/0xf0
 i915_gem_object_get_pages_dmabuf+0x17/0x60 [i915]
 __i915_gem_object_get_pages+0x6d/0xa0 [i915]
 i915_vma_pin_ww+0x677/0x880 [i915]
 eb_validate_vmas+0x77/0x6d0 [i915]
 ? intel_timeline_enter+0x61/0xc0 [i915]
 i915_gem_do_execbuffer+0x845/0x1e40 [i915]
 ? __i915_gem_object_set_pages+0x1ea/0x220 [i915]
 ? shmem_get_pages+0x55d/0x580 [i915]
 ? i915_gem_execbuffer2_ioctl+0x8c/0x200 [i915]
 i915_gem_execbuffer2_ioctl+0xf1/0x200 [i915]
 ? i915_gem_execbuffer_ioctl+0x2a0/0x2a0 [i915]
 drm_ioctl_kernel+0x86/0xd0 [drm]
 drm_ioctl+0x20f/0x3c0 [drm]
 ? i915_gem_execbuffer_ioctl+0x2a0/0x2a0 [i915]
 ? clockevents_program_event+0x95/0xf0
 __x64_sys_ioctl+0x82/0xb0
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f09b52734eb
Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 55 b9 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffcea9b2158 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000056008a309b18 RCX: 00007f09b52734eb
RDX: 00007ffcea9b2170 RSI: 0000000040406469 RDI: 0000000000000013
RBP: 00007ffcea9b2200 R08: 0000000000000020 R09: 0000000000005021
R10: 0000000000001021 R11: 0000000000000246 R12: 00007f098e278ce0
R13: 0000000000000000 R14: 00007ffcea9b2170 R15: 0000000000000013
Modules linked in: rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc ccm nft_objref 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 ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter cmac bnep sunrpc vfat fat snd_sof_pci snd_sof_intel_hda_common snd_sof_intel_hda snd_sof_intel_byt snd_sof_intel_ipc snd_sof intel_rapl_msr snd_sof_xtensa_dsp intel_rapl_common snd_soc_skl snd_hda_codec_realtek snd_soc_hdac_hda snd_hda_ext_core snd_hda_codec_generic snd_soc_sst_ipc snd_soc_sst_dsp ledtrig_audio snd_hda_codec_hdmi snd_soc_acpi_intel_match snd_soc_acpi x86_pkg_temp_thermal snd_hda_intel
 intel_powerclamp snd_intel_dspcfg soundwire_intel soundwire_generic_allocation snd_soc_core coretemp snd_compress nvidia_drm(POE) iwlmvm kvm_intel snd_pcm_dmaengine iTCO_wdt nvidia_modeset(POE) intel_pmc_bxt soundwire_cadence mac80211 kvm snd_hda_codec iTCO_vendor_support mei_hdcp ee1004 irqbypass libarc4 snd_hda_core rapl uvcvideo ac97_bus intel_cstate snd_hwdep intel_uncore videobuf2_vmalloc videobuf2_memops iwlwifi pcspkr btusb videobuf2_v4l2 intel_wmi_thunderbolt snd_seq videobuf2_common btrtl acer_wmi snd_seq_device i2c_i801 btbcm btintel snd_pcm sparse_keymap wmi_bmof i2c_smbus bluetooth cfg80211 videodev snd_timer snd mei_me ecdh_generic mc nvidia(POE) joydev mei soundcore ecc rfkill idma64 intel_pch_thermal acpi_pad acer_wireless zram ip_tables i915 hid_multitouch rtsx_pci_sdmmc mmc_core crct10dif_pclmul crc32_pclmul crc32c_intel i2c_algo_bit drm_kms_helper ghash_clmulni_intel serio_raw nvme cec rtsx_pci drm r8169 nvme_core i2c_hid wmi video pinctrl_cannonlake fuse
CR2: 000000000000000c