RBP: 0000000020000000 R08: 00000000000000f0 R09: 0000000000000000 R10: 0000000000000064 R11: 0000000000000293 R12: 00007fde5e5986d4 R13: 00000000004c61fe R14: 00000000004db0b0 R15: 0000000000000005 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: 12962 Comm: syz-executor2 Not tainted 4.20.0+ #7 kobject: 'loop5' (000000005a639edc): kobject_uevent_env 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+0x14c/0x970 net/xfrm/xfrm_interface.c:259 Code: 7c f5 08 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 57 07 00 00 48 b8 00 00 00 00 00 fc ff df 4f 8b 6c f5 08 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 2a 07 00 00 49 8b 7d 00 49 8d b5 d0 00 00 00 e8 RSP: 0018:ffff888066f16c40 EFLAGS: 00010246 kobject: 'loop5' (000000005a639edc): fill_kobj_path: path = '/devices/virtual/block/loop5' RAX: dffffc0000000000 RBX: ffff8880a9664580 RCX: ffffc90009e19000 RDX: 0000000000000000 RSI: ffffffff86c8ce3a RDI: ffff8880635993c8 RBP: ffff888066f16c78 R08: ffff8880926d24c0 R09: ffffed1015cc5b90 R10: ffffed1015cc5b8f R11: ffff8880ae62dc7b R12: 00000000ffffffff R13: 0000000000000000 R14: ffffffffffffffff R15: 0000000000000001 FS: 00007fde5e598700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d821000 CR3: 000000008c6b9000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kobject: 'loop1' (000000000e30b11f): kobject_uevent_env Call Trace: xfrm6_rcv_cb+0x223/0x3f0 net/ipv6/xfrm6_protocol.c:59 xfrm_rcv_cb net/xfrm/xfrm_input.c:106 [inline] xfrm_input+0x961/0x3460 net/xfrm/xfrm_input.c:472 kobject: 'loop1' (000000000e30b11f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000006029111e): kobject_uevent_env xfrm6_rcv_spi net/ipv6/xfrm6_input.c:31 [inline] xfrm6_rcv_tnl+0x175/0x1e0 net/ipv6/xfrm6_input.c:74 xfrm6_rcv+0x18/0x20 net/ipv6/xfrm6_input.c:81 xfrm6_esp_rcv+0x18c/0x380 net/ipv6/xfrm6_protocol.c:74 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 ip6_protocol_deliver_rcu+0x3aa/0x1940 net/ipv6/ip6_input.c:394 kobject: 'loop0' (000000006029111e): fill_kobj_path: path = '/devices/virtual/block/loop0' ip6_input_finish+0x84/0x170 net/ipv6/ip6_input.c:434 kobject: 'loop4' (000000002a187a2f): kobject_uevent_env NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip6_input+0xf9/0x600 net/ipv6/ip6_input.c:443 kobject: 'loop4' (000000002a187a2f): fill_kobj_path: path = '/devices/virtual/block/loop4' ip6_mc_input+0x4f9/0x10d0 net/ipv6/ip6_input.c:537 dst_input include/net/dst.h:450 [inline] ip6_rcv_finish+0x177/0x330 net/ipv6/ip6_input.c:76 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ipv6_rcv+0x113/0x650 net/ipv6/ip6_input.c:272 kobject: 'loop3' (00000000960d492f): kobject_uevent_env kobject: 'loop3' (00000000960d492f): fill_kobj_path: path = '/devices/virtual/block/loop3' __netif_receive_skb_one_core+0x160/0x210 net/core/dev.c:4973 __netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5083 netif_receive_skb_internal+0x11e/0x690 net/core/dev.c:5186 napi_frags_finish net/core/dev.c:5753 [inline] napi_gro_frags+0xd07/0xfe0 net/core/dev.c:5827 tun_get_user+0x2ec2/0x4150 drivers/net/tun.c:1972 kobject: 'loop1' (000000000e30b11f): kobject_uevent_env kobject: 'loop1' (000000000e30b11f): fill_kobj_path: path = '/devices/virtual/block/loop1' tun_chr_write_iter+0xbd/0x160 drivers/net/tun.c:2017 call_write_iter include/linux/fs.h:1857 [inline] do_iter_readv_writev+0x856/0xae0 fs/read_write.c:680 do_iter_write fs/read_write.c:959 [inline] do_iter_write+0x184/0x600 fs/read_write.c:940 vfs_writev+0x1ee/0x370 fs/read_write.c:1004 kobject: 'loop3' (00000000960d492f): kobject_uevent_env kobject: 'loop3' (00000000960d492f): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000005a639edc): kobject_uevent_env do_writev+0x11a/0x300 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+0x1a3/0x800 arch/x86/entry/common.c:290 kobject: 'loop5' (000000005a639edc): fill_kobj_path: path = '/devices/virtual/block/loop5' entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457d81 kobject: 'loop4' (000000002a187a2f): kobject_uevent_env Code: 75 14 b8 14 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 a4 b8 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:00007fde5e597ba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 0000000000000140 RCX: 0000000000457d81 RDX: 0000000000000001 RSI: 00007fde5e597bf0 RDI: 00000000000000f0 kobject: 'loop4' (000000002a187a2f): fill_kobj_path: path = '/devices/virtual/block/loop4' RBP: 0000000020000000 R08: 00000000000000f0 R09: 0000000000000000 R10: 0000000000000064 R11: 0000000000000293 R12: 00007fde5e5986d4 R13: 00000000004c61fe R14: 00000000004db0b0 R15: 0000000000000005 Modules linked in: ---[ end trace 52e8317146af7902 ]--- kobject: 'loop0' (000000006029111e): kobject_uevent_env RIP: 0010:xs_net include/net/xfrm.h:253 [inline] RIP: 0010:xfrmi_rcv_cb+0x14c/0x970 net/xfrm/xfrm_interface.c:259 Code: 7c f5 08 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 57 07 00 00 48 b8 00 00 00 00 00 fc ff df 4f 8b 6c f5 08 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 2a 07 00 00 49 8b 7d 00 49 8d b5 d0 00 00 00 e8 kobject: 'loop0' (000000006029111e): fill_kobj_path: path = '/devices/virtual/block/loop0' RSP: 0018:ffff888066f16c40 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8880a9664580 RCX: ffffc90009e19000 RDX: 0000000000000000 RSI: ffffffff86c8ce3a RDI: ffff8880635993c8 RBP: ffff888066f16c78 R08: ffff8880926d24c0 R09: ffffed1015cc5b90 R10: ffffed1015cc5b8f R11: ffff8880ae62dc7b R12: 00000000ffffffff R13: 0000000000000000 R14: ffffffffffffffff R15: 0000000000000001 FS: 00007fde5e598700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d821000 CR3: 000000008c6b9000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400