BUG: unable to handle page fault for address: fffffbfffe704062
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 21ffe5067 P4D 21ffe5067 PUD 21ffe4067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 21459 Comm: syz-executor.2 Not tainted 5.7.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:fl_dump_key+0x90/0x2220 net/sched/cls_flower.c:2769
Code: 04 f2 04 f2 c7 40 0c 04 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 84 24 08 01 00 00 31 c0 e8 b7 d2 19 fb 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 74 08 3c 03 0f 8e 74 1f 00 00 45 8b 2e 31 ff
RSP: 0018:ffffc90002017280 EFLAGS: 00010a02
RAX: 1ffffffffe704062 RBX: fffffffff3820130 RCX: ffffc9000df9a000
RDX: 00000000000008fc RSI: ffffffff8659bf39 RDI: ffff8880a1b05300
RBP: ffff8880a1b05300 R08: ffff88809e092200 R09: ffff88805fa6003c
R10: ffff88805fa60036 R11: ffffed100bf4c006 R12: ffff8880929f80c0
R13: dffffc0000000000 R14: fffffffff3820310 R15: ffff8880929f80c0
FS:  00007f8d3b99e700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfffe704062 CR3: 0000000092052000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 fl_tmplt_dump+0xcf/0x250 net/sched/cls_flower.c:3081
 tc_chain_fill_node+0x48e/0x7c0 net/sched/cls_api.c:2674
 tc_chain_notify+0x189/0x2e0 net/sched/cls_api.c:2700
 tc_ctl_chain+0xb74/0x1070 net/sched/cls_api.c:2886
 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5461
 netlink_rcv_skb+0x15a/0x410 net/netlink/af_netlink.c:2469
 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
 netlink_unicast+0x537/0x740 net/netlink/af_netlink.c:1329
 netlink_sendmsg+0x882/0xe10 net/netlink/af_netlink.c:1918
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:672
 ____sys_sendmsg+0x6e6/0x810 net/socket.c:2352
 ___sys_sendmsg+0x100/0x170 net/socket.c:2406
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45ca59
Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f8d3b99dc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000501be0 RCX: 000000000045ca59
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003
RBP: 000000000078c040 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000a26 R14: 00000000004cd087 R15: 00007f8d3b99e6d4
Modules linked in:
CR2: fffffbfffe704062
---[ end trace f3f529ff909cbe1d ]---
RIP: 0010:fl_dump_key+0x90/0x2220 net/sched/cls_flower.c:2769
Code: 04 f2 04 f2 c7 40 0c 04 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 84 24 08 01 00 00 31 c0 e8 b7 d2 19 fb 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 74 08 3c 03 0f 8e 74 1f 00 00 45 8b 2e 31 ff
RSP: 0018:ffffc90002017280 EFLAGS: 00010a02
RAX: 1ffffffffe704062 RBX: fffffffff3820130 RCX: ffffc9000df9a000
RDX: 00000000000008fc RSI: ffffffff8659bf39 RDI: ffff8880a1b05300
RBP: ffff8880a1b05300 R08: ffff88809e092200 R09: ffff88805fa6003c
R10: ffff88805fa60036 R11: ffffed100bf4c006 R12: ffff8880929f80c0
R13: dffffc0000000000 R14: fffffffff3820310 R15: ffff8880929f80c0
FS:  00007f8d3b99e700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfffe704062 CR3: 0000000092052000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400