Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 UID: 0 PID: 6016 Comm: syz.1.17 Not tainted 6.16.0-rc6-syzkaller-01646-g56613001dfc9-dirty #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:xfrm_lookup_with_ifid+0xb9/0x1a70 net/xfrm/xfrm_policy.c:3181 Code: c7 44 29 0a f3 f3 e8 f6 b8 ac f7 ba 10 00 00 00 4c 89 f7 31 f6 e8 d7 ca 0e f8 4c 89 64 24 18 49 83 c4 08 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 e8 c7 0e f8 4d 8b 24 24 4c 89 e0 RSP: 0018:ffffc90002b77960 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90002b77a10 RBP: ffffc90002b77a78 R08: ffffc90002b77a0f R09: 0000000000000000 R10: ffffc90002b77a00 R11: fffff5200056ef42 R12: 0000000000000008 R13: dffffc0000000000 R14: ffffc90002b77a00 R15: ffff888025d85d80 FS: 00007fa26dbba6c0(0000) GS:ffff8880b8615000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000000 CR3: 0000000026e50000 CR4: 00000000000006f0 Call Trace: xfrm_lookup net/xfrm/xfrm_policy.c:3336 [inline] xfrm_lookup_route+0x3c/0x1c0 net/xfrm/xfrm_policy.c:3347 ip6_datagram_dst_update+0x75c/0xcb0 net/ipv6/datagram.c:96 __ip6_datagram_connect+0xbd1/0x1150 net/ipv6/datagram.c:255 udpv6_connect+0x36/0x240 net/ipv6/udp.c:1310 __sys_connect_file net/socket.c:2086 [inline] __sys_connect+0x316/0x440 net/socket.c:2105 __do_sys_connect net/socket.c:2111 [inline] __se_sys_connect net/socket.c:2108 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2108 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa26cd8e9a9 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa26dbba038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007fa26cfb5fa0 RCX: 00007fa26cd8e9a9 RDX: 000000000000001c RSI: 0000200000000000 RDI: 0000000000000003 RBP: 00007fa26ce10d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fa26cfb5fa0 R15: 00007ffe87554b78 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:xfrm_lookup_with_ifid+0xb9/0x1a70 net/xfrm/xfrm_policy.c:3181 Code: c7 44 29 0a f3 f3 e8 f6 b8 ac f7 ba 10 00 00 00 4c 89 f7 31 f6 e8 d7 ca 0e f8 4c 89 64 24 18 49 83 c4 08 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 e8 c7 0e f8 4d 8b 24 24 4c 89 e0 RSP: 0018:ffffc90002b77960 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90002b77a10 RBP: ffffc90002b77a78 R08: ffffc90002b77a0f R09: 0000000000000000 R10: ffffc90002b77a00 R11: fffff5200056ef42 R12: 0000000000000008 R13: dffffc0000000000 R14: ffffc90002b77a00 R15: ffff888025d85d80 FS: 00007fa26dbba6c0(0000) GS:ffff8880b8615000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000000 CR3: 0000000026e50000 CR4: 00000000000006f0 ---------------- Code disassembly (best guess): 0: c7 44 29 0a f3 f3 e8 movl $0xf6e8f3f3,0xa(%rcx,%rbp,1) 7: f6 8: b8 ac f7 ba 10 mov $0x10baf7ac,%eax d: 00 00 add %al,(%rax) f: 00 4c 89 f7 add %cl,-0x9(%rcx,%rcx,4) 13: 31 f6 xor %esi,%esi 15: e8 d7 ca 0e f8 call 0xf80ecaf1 1a: 4c 89 64 24 18 mov %r12,0x18(%rsp) 1f: 49 83 c4 08 add $0x8,%r12 23: 4c 89 e0 mov %r12,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 e7 mov %r12,%rdi 34: e8 e8 c7 0e f8 call 0xf80ec821 39: 4d 8b 24 24 mov (%r12),%r12 3d: 4c 89 e0 mov %r12,%rax