BUG: unable to handle page fault for address: fffffbfffa972fec
#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: 0 PID: 2202 Comm: syz-executor.1 Not tainted 5.8.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:fl_dump_key+0x8d/0x22a0 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 00 01 00 00 31 c0 e8 ca 3e 0c fb 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 74 08 3c 03 0f 8e a8 1f 00 00 45 8b 2f 31 ff
RSP: 0018:ffffc90003f672c8 EFLAGS: 00010a03
RAX: 1ffffffffa972fec RBX: ffffffffd4b97d85 RCX: ffffc90004df9000
RDX: 0000000000040000 RSI: ffffffff86677b36 RDI: ffff88809fdfd640
RBP: ffff88809fdfd640 R08: 0000000000000000 R09: ffff88804ed6003c
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880855be080
R13: dffffc0000000000 R14: ffff88809fdfd6f8 R15: ffffffffd4b97f65
FS:  00007f67826d9700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfffa972fec CR3: 000000008f1fa000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 fl_tmplt_dump+0xc9/0x250 net/sched/cls_flower.c:3081
 tc_chain_fill_node+0x48d/0x7c0 net/sched/cls_api.c:2679
 tc_chain_notify+0x187/0x2e0 net/sched/cls_api.c:2705
 tc_ctl_chain+0xb30/0x1000 net/sched/cls_api.c:2891
 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5461
 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2469
 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1329
 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1918
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:672
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2352
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2406
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45c1d9
Code: Bad RIP value.
RSP: 002b:00007f67826d8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000002af40 RCX: 000000000045c1d9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003
RBP: 000000000078c080 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078c04c
R13: 00007ffe630af8cf R14: 00007f67826d99c0 R15: 000000000078c04c
Modules linked in:
CR2: fffffbfffa972fec
---[ end trace b277b2e1a24abe28 ]---
RIP: 0010:fl_dump_key+0x8d/0x22a0 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 00 01 00 00 31 c0 e8 ca 3e 0c fb 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 74 08 3c 03 0f 8e a8 1f 00 00 45 8b 2f 31 ff
RSP: 0018:ffffc90003f672c8 EFLAGS: 00010a03
RAX: 1ffffffffa972fec RBX: ffffffffd4b97d85 RCX: ffffc90004df9000
RDX: 0000000000040000 RSI: ffffffff86677b36 RDI: ffff88809fdfd640
RBP: ffff88809fdfd640 R08: 0000000000000000 R09: ffff88804ed6003c
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880855be080
R13: dffffc0000000000 R14: ffff88809fdfd6f8 R15: ffffffffd4b97f65
FS:  00007f67826d9700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfffa972fec CR3: 000000008f1fa000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400