BUG: unable to handle page fault for address: 0000000000010062
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 101716067 P4D 101716067 PUD 1052ed067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP
CPU: 0 PID: 3387 Comm: syz-executor.0 Not tainted 6.7.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:htb_tcf_block+0x25/0x50 net/sched/sch_htb.c:2093
Code: c3 0f 1f 40 00 f3 0f 1e fa 55 48 89 fd 53 48 89 f3 e8 bf d1 f7 fe 31 ff 48 89 de e8 55 cd f7 fe 48 85 db 74 14 e8 ab d1 f7 fe <48> 8b 5b 70 e8 a2 d1 f7 fe 48 89 d8 5b 5d c3 e8 97 d1 f7 fe 48 8b
RSP: 0018:ffffc90001a1f8e0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 000000000000fff2 RCX: ffffffff82354d4b
RDX: ffff88810b711b40 RSI: ffffffff82354d55 RDI: 0000000000000007
RBP: ffff88810fa9d000 R08: 0000000000000007 R09: 0000000000000000
R10: 000000000000fff2 R11: 0000000000000002 R12: ffff888106fb3000
R13: ffffffff82fab1c0 R14: ffffc90001a1f9a0 R15: ffffffff83a0d7e0
FS:  00007fc3ef7056c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000010062 CR3: 000000010b7a1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 qdisc_block_add_dev net/sched/sch_api.c:1190 [inline]
 qdisc_create+0x31f/0x980 net/sched/sch_api.c:1390
 tc_modify_qdisc+0x714/0xd00 net/sched/sch_api.c:1788
 rtnetlink_rcv_msg+0x268/0x670 net/core/rtnetlink.c:6615
 netlink_rcv_skb+0x91/0x1d0 net/netlink/af_netlink.c:2543
 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
 netlink_unicast+0x43f/0x570 net/netlink/af_netlink.c:1367
 netlink_sendmsg+0x341/0x690 net/netlink/af_netlink.c:1908
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x52/0xa0 net/socket.c:745
 ____sys_sendmsg+0x337/0x3e0 net/socket.c:2584
 ___sys_sendmsg+0xc9/0x130 net/socket.c:2638
 __sys_sendmsg+0xa6/0x120 net/socket.c:2667
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fc3efb82ce9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc3ef7050c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc3efca1f80 RCX: 00007fc3efb82ce9
RDX: 0000000000000000 RSI: 0000000020005840 RDI: 0000000000000003
RBP: 00007fc3efbcf47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000006 R14: 00007fc3efca1f80 R15: 00007ffc1286f038
 </TASK>
Modules linked in:
CR2: 0000000000010062
---[ end trace 0000000000000000 ]---
RIP: 0010:htb_tcf_block+0x25/0x50 net/sched/sch_htb.c:2093
Code: c3 0f 1f 40 00 f3 0f 1e fa 55 48 89 fd 53 48 89 f3 e8 bf d1 f7 fe 31 ff 48 89 de e8 55 cd f7 fe 48 85 db 74 14 e8 ab d1 f7 fe <48> 8b 5b 70 e8 a2 d1 f7 fe 48 89 d8 5b 5d c3 e8 97 d1 f7 fe 48 8b
RSP: 0018:ffffc90001a1f8e0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 000000000000fff2 RCX: ffffffff82354d4b
RDX: ffff88810b711b40 RSI: ffffffff82354d55 RDI: 0000000000000007
RBP: ffff88810fa9d000 R08: 0000000000000007 R09: 0000000000000000
R10: 000000000000fff2 R11: 0000000000000002 R12: ffff888106fb3000
R13: ffffffff82fab1c0 R14: ffffc90001a1f9a0 R15: ffffffff83a0d7e0
FS:  00007fc3ef7056c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000010062 CR3: 000000010b7a1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	c3                   	ret
   1:	0f 1f 40 00          	nopl   0x0(%rax)
   5:	f3 0f 1e fa          	endbr64
   9:	55                   	push   %rbp
   a:	48 89 fd             	mov    %rdi,%rbp
   d:	53                   	push   %rbx
   e:	48 89 f3             	mov    %rsi,%rbx
  11:	e8 bf d1 f7 fe       	call   0xfef7d1d5
  16:	31 ff                	xor    %edi,%edi
  18:	48 89 de             	mov    %rbx,%rsi
  1b:	e8 55 cd f7 fe       	call   0xfef7cd75
  20:	48 85 db             	test   %rbx,%rbx
  23:	74 14                	je     0x39
  25:	e8 ab d1 f7 fe       	call   0xfef7d1d5
* 2a:	48 8b 5b 70          	mov    0x70(%rbx),%rbx <-- trapping instruction
  2e:	e8 a2 d1 f7 fe       	call   0xfef7d1d5
  33:	48 89 d8             	mov    %rbx,%rax
  36:	5b                   	pop    %rbx
  37:	5d                   	pop    %rbp
  38:	c3                   	ret
  39:	e8 97 d1 f7 fe       	call   0xfef7d1d5
  3e:	48                   	rex.W
  3f:	8b                   	.byte 0x8b