RBP: 0000000020000000 R08: 00000000000000f0 R09: 0000000000000000 R10: 0000000000000064 R11: 0000000000000293 R12: 00007f0bcc28f6d4 R13: 00000000004c48a4 R14: 00000000004d7b90 R15: 0000000000000004 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 18976 Comm: syz-executor3 Not tainted 4.19.0-rc6+ #135 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:xs_net include/net/xfrm.h:253 [inline] RIP: 0010:xfrmi_rcv_cb+0xd4/0x9d0 net/xfrm/xfrm_interface.c:256 Code: 7c e5 10 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 f0 07 00 00 48 b8 00 00 00 00 00 fc ff df 4f 8b 64 e5 10 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 da 07 00 00 49 8b 3c 24 49 8d b4 24 d0 00 00 00 RSP: 0018:ffff8801988869a8 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8801c03b8340 RCX: ffffc90007ea6000 RDX: 0000000000000000 RSI: ffffffff86ab3375 RDI: ffff8801c0dc5808 RBP: ffff8801988869e8 R08: ffff8801ba47a300 R09: 0000000000000000 R10: fffffbfff128759a R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801c0dc5800 R14: ffff8801c03b83a8 R15: 0000000000000000 FS: 00007f0bcc28f700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001d8211000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: xfrm6_rcv_cb+0x220/0x400 net/ipv6/xfrm6_protocol.c:59 xfrm_rcv_cb net/xfrm/xfrm_input.c:108 [inline] xfrm_input+0x8aa/0x3190 net/xfrm/xfrm_input.c:496 xfrm6_rcv_spi net/ipv6/xfrm6_input.c:31 [inline] xfrm6_rcv_tnl+0x168/0x1d0 net/ipv6/xfrm6_input.c:74 xfrm6_rcv+0x17/0x20 net/ipv6/xfrm6_input.c:81 xfrm6_esp_rcv+0x1a5/0x3a0 net/ipv6/xfrm6_protocol.c:74 ip6_input_finish+0x3fc/0x1aa0 net/ipv6/ip6_input.c:383 NF_HOOK include/linux/netfilter.h:289 [inline] ip6_input+0xe9/0x600 net/ipv6/ip6_input.c:426 ip6_mc_input+0x48a/0xd20 net/ipv6/ip6_input.c:503 dst_input include/net/dst.h:450 [inline] ip6_rcv_finish+0x17a/0x330 net/ipv6/ip6_input.c:76 NF_HOOK include/linux/netfilter.h:289 [inline] ipv6_rcv+0x120/0x640 net/ipv6/ip6_input.c:271 __netif_receive_skb_one_core+0x14d/0x200 net/core/dev.c:4891 __netif_receive_skb+0x2c/0x1e0 net/core/dev.c:5001 netif_receive_skb_internal+0x12c/0x620 net/core/dev.c:5104 napi_frags_finish net/core/dev.c:5642 [inline] napi_gro_frags+0x75a/0xc90 net/core/dev.c:5715 tun_get_user+0x3189/0x4250 drivers/net/tun.c:1923 tun_chr_write_iter+0xb9/0x154 drivers/net/tun.c:1968 call_write_iter include/linux/fs.h:1808 [inline] do_iter_readv_writev+0x8b0/0xa80 fs/read_write.c:680 do_iter_write+0x185/0x5f0 fs/read_write.c:959 vfs_writev+0x1f1/0x360 fs/read_write.c:1004 do_writev+0x11a/0x310 fs/read_write.c:1039 __do_sys_writev fs/read_write.c:1112 [inline] __se_sys_writev fs/read_write.c:1109 [inline] __x64_sys_writev+0x75/0xb0 fs/read_write.c:1109 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457431 Code: 75 14 b8 14 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 54 b5 fb ff c3 48 83 ec 08 e8 1a 2d 00 00 48 89 04 24 b8 14 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 63 2d 00 00 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007f0bcc28eba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 000000000000004a RCX: 0000000000457431 RDX: 0000000000000001 RSI: 00007f0bcc28ebf0 RDI: 00000000000000f0 RBP: 0000000020000000 R08: 00000000000000f0 R09: 0000000000000000 R10: 0000000000000064 R11: 0000000000000293 R12: 00007f0bcc28f6d4 R13: 00000000004c48a4 R14: 00000000004d7b90 R15: 0000000000000004 Modules linked in: ---[ end trace 159d39f9579c3fe6 ]--- RIP: 0010:xs_net include/net/xfrm.h:253 [inline] RIP: 0010:xfrmi_rcv_cb+0xd4/0x9d0 net/xfrm/xfrm_interface.c:256 Code: 7c e5 10 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 f0 07 00 00 48 b8 00 00 00 00 00 fc ff df 4f 8b 64 e5 10 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 da 07 00 00 49 8b 3c 24 49 8d b4 24 d0 00 00 00 RSP: 0018:ffff8801988869a8 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8801c03b8340 RCX: ffffc90007ea6000 RDX: 0000000000000000 RSI: ffffffff86ab3375 RDI: ffff8801c0dc5808 RBP: ffff8801988869e8 R08: ffff8801ba47a300 R09: 0000000000000000 kobject: 'loop0' (0000000065036bb7): kobject_uevent_env R10: fffffbfff128759a R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801c0dc5800 R14: ffff8801c03b83a8 R15: 0000000000000000 FS: 00007f0bcc28f700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001d8211000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kobject: 'pim6reg' (0000000016bcbea9): kobject_add_internal: parent: 'net', set: 'devices'