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: 10942 Comm: syz-executor.2 Not tainted 6.1.0-rc5-next-20221118 #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: a5 68 f2 ff e9 98 00 5f ff e8 ed f9 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:ffff88806ce09658 EFLAGS: 00010213 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000100 RDX: 0000000000000019 RSI: ffffffff843cef83 RDI: 00000000000000cc RBP: 0000000000000001 R08: 0000000000000007 R09: fffffffffffff000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f1e51207700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f12a57d9546 CR3: 00000000439ca000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __xfrm_policy_check+0xdd7/0x2190 tcp_v6_rcv+0x1e76/0x3550 ip6_protocol_deliver_rcu+0x175/0x1870 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 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 syz-executor.1: attempt to access beyond end of device loop1: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop1, logical block 10, lost async page write asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 Code: 90 f3 0f 1e fa 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 fa 82 eb fc 48 89 ef e8 c2 fa eb fc e8 4d 75 0f fd fb bf 01 00 00 00 82 57 e1 fc 65 8b 05 a3 00 c3 7b 85 c0 74 06 5d e9 95 29 00 00 RSP: 0018:ffff8880432c70f0 EFLAGS: 00000202 RAX: 00000000000028bf RBX: ffff88800b4b7470 RCX: ffffffff812b6aff RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001 RBP: ffff88800b4b7478 R08: 0000000000000001 R09: ffffffff8763287f R10: fffffbfff0ec650f R11: 0000000000000001 R12: 0000000000000002 R13: 0000000000000001 R14: ffff88800b4b7478 R15: ffffea00010e8c74 __remove_mapping+0x1c6/0xa60 shrink_folio_list+0x1477/0x3620 shrink_lruvec+0xbf1/0x22f0 shrink_node+0x8b1/0x1e80 do_try_to_free_pages+0x3c2/0x1720 try_to_free_mem_cgroup_pages+0x34e/0x8d0 try_charge_memcg+0x422/0x12c0 mem_cgroup_charge_skmem+0x80/0x1b0 sk_setsockopt+0x1aed/0x3610 udp_lib_setsockopt+0x635/0xd90 udp_setsockopt+0xab/0xd0 __sys_setsockopt+0x184/0x320 __x64_sys_setsockopt+0xbe/0x160 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f1e53c91b19 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:00007f1e51207188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f1e53da4f60 RCX: 00007f1e53c91b19 RDX: 0000000000000049 RSI: 0000000000000001 RDI: 0000000000000006 RBP: 00007f1e53cebf6d R08: 0000000000000010 R09: 0000000000000000 R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcf000263f R14: 00007f1e51207300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:xfrm_policy_lookup_bytype.constprop.0.cold+0x21/0x5d Code: a5 68 f2 ff e9 98 00 5f ff e8 ed f9 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:ffff88806ce09658 EFLAGS: 00010213 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000100 RDX: 0000000000000019 RSI: ffffffff843cef83 RDI: 00000000000000cc RBP: 0000000000000001 R08: 0000000000000007 R09: fffffffffffff000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f1e51207700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f12a57d9546 CR3: 00000000439ca000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess): 0: a5 movsl %ds:(%rsi),%es:(%rdi) 1: 68 f2 ff e9 98 pushq $0xffffffff98e9fff2 6: 00 5f ff add %bl,-0x1(%rdi) 9: e8 ed f9 0b fd callq 0xfd0bf9fb 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