RBP: 0000000020000000 R08: 00000000000000f0 R09: 0000000000000000 R10: 0000000000000064 R11: 0000000000000293 R12: 00007f177d59a6d4 R13: 00000000004c64e1 R14: 00000000004db9c0 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: 1 PID: 21802 Comm: syz-executor.0 Not tainted 5.0.0-rc7+ #87 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 kobject: 'loop3' (0000000034f89466): kobject_uevent_env RSP: 0018:ffff888097bd7108 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8880690a4540 RCX: ffffc90005deb000 RDX: 0000000000000000 RSI: ffffffff860442aa RDI: ffff88805f803cc8 kobject: 'loop3' (0000000034f89466): fill_kobj_path: path = '/devices/virtual/block/loop3' RBP: ffff888097bd7140 R08: ffff888084f7e0c0 R09: ffffed1015d25bd0 R10: ffffed1015d25bcf R11: ffff8880ae92de7b R12: 00000000ffffffff R13: 0000000000000000 R14: ffffffffffffffff R15: 00000000ffffffff FS: 00007f177d59a700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 kobject: 'loop1' (00000000a6ec25ea): kobject_uevent_env CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1b0f173848 CR3: 000000005c96d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: xfrm6_rcv_cb+0x118/0x290 net/ipv6/xfrm6_protocol.c:59 xfrm_rcv_cb net/xfrm/xfrm_input.c:106 [inline] xfrm_input+0x8f4/0x3070 net/xfrm/xfrm_input.c:472 kobject: 'loop1' (00000000a6ec25ea): fill_kobj_path: path = '/devices/virtual/block/loop1' 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+0xd8/0x230 net/ipv6/xfrm6_protocol.c:74 ip6_protocol_deliver_rcu+0x303/0x16c0 net/ipv6/ip6_input.c:394 ip6_input_finish+0x84/0x170 net/ipv6/ip6_input.c:434 kobject: 'loop3' (0000000034f89466): kobject_uevent_env NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip6_input+0xe4/0x3f0 net/ipv6/ip6_input.c:443 kobject: 'loop3' (0000000034f89466): fill_kobj_path: path = '/devices/virtual/block/loop3' ip6_mc_input+0x4aa/0xf30 net/ipv6/ip6_input.c:537 dst_input include/net/dst.h:450 [inline] ip6_rcv_finish+0x1e7/0x320 net/ipv6/ip6_input.c:76 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ipv6_rcv+0x10e/0x420 net/ipv6/ip6_input.c:272 __netif_receive_skb_one_core+0x115/0x1a0 net/core/dev.c:4973 __netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5083 netif_receive_skb_internal+0x117/0x660 net/core/dev.c:5186 napi_frags_finish net/core/dev.c:5753 [inline] napi_gro_frags+0xade/0xd10 net/core/dev.c:5827 tun_get_user+0x2c17/0x3d70 drivers/net/tun.c:1974 tun_chr_write_iter+0xbd/0x160 drivers/net/tun.c:2019 call_write_iter include/linux/fs.h:1863 [inline] do_iter_readv_writev+0x5e0/0x8e0 fs/read_write.c:680 do_iter_write fs/read_write.c:956 [inline] do_iter_write+0x184/0x610 fs/read_write.c:937 vfs_writev+0x1b3/0x2f0 fs/read_write.c:1001 do_writev+0xf6/0x290 fs/read_write.c:1036 __do_sys_writev fs/read_write.c:1109 [inline] __se_sys_writev fs/read_write.c:1106 [inline] __x64_sys_writev+0x75/0xb0 fs/read_write.c:1106 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457ce1 Code: 75 14 b8 14 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 e4 b9 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:00007f177d599ba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 kobject: 'loop2' (000000005c814fb2): kobject_uevent_env RAX: ffffffffffffffda RBX: 0000000000300b00 RCX: 0000000000457ce1 RDX: 0000000000000001 RSI: 00007f177d599bf0 RDI: 00000000000000f0 RBP: 0000000020000000 R08: 00000000000000f0 R09: 0000000000000000 R10: 0000000000000064 R11: 0000000000000293 R12: 00007f177d59a6d4 R13: 00000000004c64e1 R14: 00000000004db9c0 R15: 0000000000000004 Modules linked in: kobject: 'loop2' (000000005c814fb2): fill_kobj_path: path = '/devices/virtual/block/loop2' ---[ end trace 67ba81c0c90fae5f ]--- 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:ffff888097bd7108 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8880690a4540 RCX: ffffc90005deb000 RDX: 0000000000000000 RSI: ffffffff860442aa RDI: ffff88805f803cc8 RBP: ffff888097bd7140 R08: ffff888084f7e0c0 R09: ffffed1015d25bd0 R10: ffffed1015d25bcf R11: ffff8880ae92de7b R12: 00000000ffffffff R13: 0000000000000000 R14: ffffffffffffffff R15: 00000000ffffffff FS: 00007f177d59a700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1b0f173848 CR3: 000000005c96d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400