Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000004
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 0 PID: 3218 Comm: servicemanager Tainted: G           OE     5.16.9-200.fc35.x86_64 #1
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/22/2020
RIP: 0010:selinux_binder_set_context_mgr+0x34/0x50
Code: c0 fb 01 00 48 8b 89 c0 0b 00 00 48 8b 57 78 45 31 c9 41 b8 04 00 00 00 48 63 05 27 6e 15 01 48 c7 c7 40 9e b7 8c 48 8b 49 78 <8b> 54 02 04 8b 74 01 04 b9 39 00 00 00 e9 8a ea ff ff 66 2e 0f 1f
RSP: 0018:ffffb4a886d9bd28 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffff8b6f53c0 RCX: ffff9ab9a0ed2ac0
RDX: 0000000000000000 RSI: ffffffffc0ad2e50 RDI: ffffffff8cb79e40
RBP: ffff9ab9dcd38000 R08: 0000000000000004 R09: 0000000000000000
R10: 000000000004b934 R11: 0000000000000062 R12: 0000000000000003
R13: ffff9ab9adfe3a28 R14: 0000000000000000 R15: 00000000000003e8
FS:  00007fd399959bd8(0000) GS:ffff9abaafe00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000004 CR3: 0000000151e30006 CR4: 00000000003706f0
Call Trace:
 <TASK>
 security_binder_set_context_mgr+0x22/0x40
 binder_ioctl_set_ctx_mgr.isra.0+0x4f/0x160 [binder_xdroid]
 binder_ioctl+0x13b/0x23b0 [binder_xdroid]
 ? mmap_region+0x27a/0x5c0
 ? selinux_file_ioctl+0x137/0x1e0
 ? security_file_ioctl+0x32/0x50
 __x64_sys_ioctl+0x82/0xb0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fd39947e6e7
Code: 00 00 00 b8 60 00 00 00 0f 05 48 3d 01 f0 ff ff 72 09 f7 d8 89 c7 e8 e8 44 fa ff c3 0f 1f 80 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 72 09 f7 d8 89 c7 e8 c8 44 fa ff c3 0f 1f 80 00
RSP: 002b:00007fff8af103f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd398e2ebe0 RCX: 00007fd39947e6e7
RDX: 0000000000000000 RSI: 0000000040046207 RDI: 0000000000000003
RBP: 00007fff8af104f8 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000001
R13: 000055d6fe6df8f0 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in: veth squashfs loop binfmt_misc xt_CHECKSUM nft_counter xt_comment xt_MASQUERADE nft_compat bridge stp llc isofs uinput snd_seq_dummy snd_hrtimer asg_xdroid(OE) ashmem_xdroid(OE) binder_xdroid(OE) 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 nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 rfkill ip_set nf_tables nfnetlink qrtr vsock_loopback vmw_vsock_virtio_transport_common vmw_vsock_vmci_transport vsock sunrpc snd_seq_midi snd_seq_midi_event snd_ens1371 snd_ac97_codec gameport snd_rawmidi ac97_bus snd_seq snd_seq_device intel_rapl_msr intel_rapl_common snd_pcm rapl snd_timer snd vmw_balloon joydev vmw_vmci soundcore i2c_piix4 zram ip_tables vmwgfx crct10dif_pclmul drm_kms_helper crc32_pclmul cec crc32c_intel ttm mptspi scsi_transport_spi ata_generic ghash_clmulni_intel mptscsih drm e1000 pata_acpi serio_raw mptbase
 ipmi_devintf ipmi_msghandler fuse
CR2: 0000000000000004