BUG: unable to handle page fault for address: fffffbfff95785d3 #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: 13939 Comm: syz-executor.1 Not tainted 5.8.0-rc2-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 1a 32 0d 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:ffffc900023c72c8 EFLAGS: 00010a02 RAX: 1ffffffff95785d3 RBX: ffffffffcabc2cb9 RCX: ffffc90004d4a000 RDX: 0000000000040000 RSI: ffffffff86662036 RDI: ffff8880a7308400 RBP: ffff8880a7308400 R08: 0000000000000000 R09: ffff88805c96403c R10: 0000000000000000 R11: 0000000000000000 R12: ffff88806f8e2080 R13: dffffc0000000000 R14: ffff8880a73084b8 R15: ffffffffcabc2e99 FS: 00007fb5b3abe700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbfff95785d3 CR3: 0000000048ce2000 CR4: 00000000001406e0 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:5460 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:359 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45cb29 Code: Bad RIP value. RSP: 002b:00007fb5b3abdc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000005026e0 RCX: 000000000045cb29 RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 000000000078c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000a42 R14: 00000000004cd2b2 R15: 00007fb5b3abe6d4 Modules linked in: CR2: fffffbfff95785d3 ---[ end trace dacabdc3dd04cd8f ]--- 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 1a 32 0d 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:ffffc900023c72c8 EFLAGS: 00010a02 RAX: 1ffffffff95785d3 RBX: ffffffffcabc2cb9 RCX: ffffc90004d4a000 RDX: 0000000000040000 RSI: ffffffff86662036 RDI: ffff8880a7308400 RBP: ffff8880a7308400 R08: 0000000000000000 R09: ffff88805c96403c R10: 0000000000000000 R11: 0000000000000000 R12: ffff88806f8e2080 R13: dffffc0000000000 R14: ffff8880a73084b8 R15: ffffffffcabc2e99 FS: 00007fb5b3abe700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbfff95785d3 CR3: 0000000048ce2000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400