general protection fault, probably for non-canonical address 0xdffffc0000000019: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x00000000000000c8-0x00000000000000cf] CPU: 0 PID: 10846 Comm: syz-executor.4 Not tainted 6.1.0-rc6-next-20221122 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:xfrm_policy_lookup_bytype.constprop.0.cold+0x21/0x5d Code: 93 67 f2 ff e9 04 fc 5e ff e8 59 de 0b fd 48 8b 44 24 10 48 8d b8 cc 00 00 00 b8 ff ff 37 00 48 89 fa 48 c1 e0 2a 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 20 48 sit: Src spoofed 0.0.0.39/2002:0:9c:0:9cdf:3f09:: -> 172.20.20.170/5171::2200 RSP: 0018:ffff88806ce09740 EFLAGS: 00010213 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000100 RDX: 0000000000000019 RSI: ffffffff843d2047 RDI: 00000000000000cc RBP: 0000000000000001 R08: 0000000000000007 R09: fffffffffffff000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f22efab2700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e022000 CR3: 0000000045496000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __xfrm_policy_check+0xdd7/0x2190 __udp6_lib_rcv+0x1ae8/0x25d0 ip6_protocol_deliver_rcu+0x7d1/0x1870 ip6_input_finish+0x150/0x2c0 ip6_input+0xa0/0xe0 ipv6_rcv+0x159/0x520 __netif_receive_skb_one_core+0x12e/0x1f0 __netif_receive_skb+0x1f/0x1c0 process_backlog+0x38a/0x7a0 __napi_poll+0xb9/0x690 net_rx_action+0x9b4/0xd10 __do_softirq+0x1c7/0x8f9 do_softirq.part.0+0xd1/0x120 __local_bh_enable_ip+0x10a/0x130 ip6_finish_output2+0xb75/0x1af0 __ip6_finish_output+0x68c/0xff0 ip6_output+0x1e9/0x540 ip6_local_out+0xd6/0x4c0 ip6_send_skb+0xbb/0x350 udp_v6_send_skb+0x7ab/0x15d0 udpv6_sendmsg+0x1e6b/0x2940 inet6_sendmsg+0x109/0x150 sock_sendmsg+0xf6/0x190 ____sys_sendmsg+0x337/0x930 ___sys_sendmsg+0x110/0x1b0 __sys_sendmmsg+0x1b7/0x550 __x64_sys_sendmmsg+0x9d/0x110 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f22f253cb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f22efab2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f22f264ff60 RCX: 00007f22f253cb19 RDX: 0000000000000002 RSI: 0000000020000c00 RDI: 0000000000000003 RBP: 00007f22f2596f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdb492dd7f R14: 00007f22efab2300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:xfrm_policy_lookup_bytype.constprop.0.cold+0x21/0x5d Code: 93 67 f2 ff e9 04 fc 5e ff e8 59 de 0b fd 48 8b 44 24 10 48 8d b8 cc 00 00 00 b8 ff ff 37 00 48 89 fa 48 c1 e0 2a 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 20 48 RSP: 0018:ffff88806ce09740 EFLAGS: 00010213 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000100 RDX: 0000000000000019 RSI: ffffffff843d2047 RDI: 00000000000000cc RBP: 0000000000000001 R08: 0000000000000007 R09: fffffffffffff000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f22efab2700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e022000 CR3: 0000000045496000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess): 0: 93 xchg %eax,%ebx 1: 67 f2 ff addr32 repnz (bad) 4: e9 04 fc 5e ff jmpq 0xff5efc0d 9: e8 59 de 0b fd callq 0xfd0bde67 e: 48 8b 44 24 10 mov 0x10(%rsp),%rax 13: 48 8d b8 cc 00 00 00 lea 0xcc(%rax),%rdi 1a: b8 ff ff 37 00 mov $0x37ffff,%eax 1f: 48 89 fa mov %rdi,%rdx 22: 48 c1 e0 2a shl $0x2a,%rax 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx <-- trapping instruction 2e: 48 89 f8 mov %rdi,%rax 31: 83 e0 07 and $0x7,%eax 34: 83 c0 03 add $0x3,%eax 37: 38 d0 cmp %dl,%al 39: 7c 04 jl 0x3f 3b: 84 d2 test %dl,%dl 3d: 75 20 jne 0x5f 3f: 48 rex.W