BUG: unable to handle page fault for address: fffffffffffffc10
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD e949067 P4D e949067 PUD e94b067 PMD 0 
Oops: Oops: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 14318 Comm: syz.5.1821 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:strlen+0x39/0x70
Code: ff ff ff 49 be 00 00 00 00 00 fc ff df 48 89 fb 49 89 c7 48 89 d8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 11 48 ff c3 49 8d 47 01 <42> 80 7c 3f 01 00 75 de eb 19 89 d9 80 e1 07 38 c1 7c e6 49 89 fc
RSP: 0018:ffffc900053d6f58 EFLAGS: 00010286
RAX: 0000000000000000 RBX: fffffffffffffc11 RCX: 0000000000080000
RDX: ffffc9000ad29000 RSI: 00000000000002c6 RDI: fffffffffffffc10
RBP: ffffc900053d7088 R08: ffffffff90578e37 R09: 1ffffffff20af1c6
R10: dffffc0000000000 R11: fffffbfff20af1c7 R12: ffff8881006a8700
R13: dffffc0000000000 R14: dffffc0000000000 R15: ffffffffffffffff
FS:  00007f4cf29f26c0(0000) GS:ffff8882a8f4d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffc10 CR3: 00000001be00a000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 trace_event_raw_event_drv_net_setup_tc+0x110/0x560
 ieee80211_netdev_setup_tc+0x326/0x360
 tcf_block_offload_cmd+0x235/0x3b0
 tcf_block_get_ext+0xfe0/0x17d0
 tcf_block_get+0x67/0xa0
 hfsc_init_qdisc+0x11e/0x390
 qdisc_create+0x7b5/0xf00
 tc_modify_qdisc+0x17af/0x2390
 rtnetlink_rcv_msg+0x7b9/0xc00
 netlink_rcv_skb+0x226/0x4a0
 netlink_unicast+0x7bb/0x940
 netlink_sendmsg+0x813/0xb40
 sock_sendmsg_nosec+0x13a/0x180
 ____sys_sendmsg+0x54e/0x850
 ___sys_sendmsg+0x2a5/0x360
 __x64_sys_sendmsg+0x1b1/0x290
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4cf1b9e019
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4cf29f2028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f4cf1e25fa0 RCX: 00007f4cf1b9e019
RDX: 0000000020040084 RSI: 00002000000012c0 RDI: 0000000000000004
RBP: 00007f4cf1c3500c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4cf1e26038 R14: 00007f4cf1e25fa0 R15: 00007ffd98376f38
 </TASK>
Modules linked in:
CR2: fffffffffffffc10
---[ end trace 0000000000000000 ]---
RIP: 0010:strlen+0x39/0x70
Code: ff ff ff 49 be 00 00 00 00 00 fc ff df 48 89 fb 49 89 c7 48 89 d8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 11 48 ff c3 49 8d 47 01 <42> 80 7c 3f 01 00 75 de eb 19 89 d9 80 e1 07 38 c1 7c e6 49 89 fc
RSP: 0018:ffffc900053d6f58 EFLAGS: 00010286
RAX: 0000000000000000 RBX: fffffffffffffc11 RCX: 0000000000080000
RDX: ffffc9000ad29000 RSI: 00000000000002c6 RDI: fffffffffffffc10
RBP: ffffc900053d7088 R08: ffffffff90578e37 R09: 1ffffffff20af1c6
R10: dffffc0000000000 R11: fffffbfff20af1c7 R12: ffff8881006a8700
R13: dffffc0000000000 R14: dffffc0000000000 R15: ffffffffffffffff
FS:  00007f4cf29f26c0(0000) GS:ffff8882a8f4d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffc10 CR3: 00000001be00a000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
