general protection fault, probably for non-canonical address 0xdffffc0000000010: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000080-0x0000000000000087] CPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rt6_get_pcpu_route net/ipv6/route.c:1395 [inline] RIP: 0010:ip6_pol_route+0x3c5/0x11c0 net/ipv6/route.c:2244 Code: 89 de e8 8e bd ad f9 48 85 db 0f 84 f0 02 00 00 e8 60 b5 ad f9 48 8d 7b 78 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e ad 0c 00 00 44 8b 6b 78 31 ff RSP: 0018:ffffc90000d97728 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 000000000000000c RCX: 0000000000000100 RDX: 0000000000000010 RSI: ffffffff87c70d50 RDI: 0000000000000084 RBP: ffff888065f64d40 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff87c70d42 R11: 0000000000000000 R12: 0000000000000080 R13: ffffc90000d97a68 R14: 0000000000000003 R15: ffffc90000d977a8 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000400308 CR3: 000000005e45b000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pol_lookup_func include/net/ip6_fib.h:579 [inline] fib6_rule_lookup+0x111/0x6f0 net/ipv6/fib6_rules.c:115 ip6_route_input_lookup net/ipv6/route.c:2280 [inline] ip6_route_input+0x681/0xad0 net/ipv6/route.c:2576 ip6_rcv_finish_core.constprop.0.isra.0+0x168/0x570 net/ipv6/ip6_input.c:63 ip6_rcv_finish net/ipv6/ip6_input.c:74 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] NF_HOOK include/linux/netfilter.h:295 [inline] ipv6_rcv+0x229/0x3c0 net/ipv6/ip6_input.c:297 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5440 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5554 process_backlog+0x232/0x6c0 net/core/dev.c:6418 __napi_poll+0xaf/0x440 net/core/dev.c:6973 napi_poll net/core/dev.c:7040 [inline] net_rx_action+0x801/0xb40 net/core/dev.c:7127 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559 run_ksoftirqd kernel/softirq.c:921 [inline] run_ksoftirqd+0x2d/0x60 kernel/softirq.c:913 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:165 kthread+0x3b1/0x4a0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Modules linked in: ---[ end trace 2a13d15e15d8dc20 ]--- RIP: 0010:rt6_get_pcpu_route net/ipv6/route.c:1395 [inline] RIP: 0010:ip6_pol_route+0x3c5/0x11c0 net/ipv6/route.c:2244 Code: 89 de e8 8e bd ad f9 48 85 db 0f 84 f0 02 00 00 e8 60 b5 ad f9 48 8d 7b 78 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e ad 0c 00 00 44 8b 6b 78 31 ff RSP: 0018:ffffc90000d97728 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 000000000000000c RCX: 0000000000000100 RDX: 0000000000000010 RSI: ffffffff87c70d50 RDI: 0000000000000084 RBP: ffff888065f64d40 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff87c70d42 R11: 0000000000000000 R12: 0000000000000080 R13: ffffc90000d97a68 R14: 0000000000000003 R15: ffffc90000d977a8 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000400308 CR3: 000000005e45b000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400