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: 2817 Comm: syz-executor1 Not tainted 5.0.0-rc2+ #5 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: 'loop4' (0000000004b7ad67): kobject_uevent_env RSP: 0018:ffff8880988deda0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8880963d8780 RCX: ffffc90007df3000 RDX: 0000000000000000 RSI: ffffffff86c5ecaa RDI: ffff888064c9f188 RBP: ffff8880988dedd8 R08: ffff88808d494200 R09: ffffed1015cc5b90 R10: ffffed1015cc5b8f R11: ffff8880ae62dc7b R12: 00000000ffffffff R13: 0000000000000000 R14: ffffffffffffffff R15: 0000000000000001 FS: 00007fdbfedce700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa3d3d0a518 CR3: 000000009ad15000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: xfrm4_rcv_cb+0x211/0x3c0 net/ipv4/xfrm4_protocol.c:59 kobject: 'loop4' (0000000004b7ad67): fill_kobj_path: path = '/devices/virtual/block/loop4' xfrm_rcv_cb net/xfrm/xfrm_input.c:106 [inline] xfrm_input+0x961/0x3460 net/xfrm/xfrm_input.c:472 kobject: 'loop3' (00000000d0d31e13): kobject_uevent_env kobject: 'loop3' (00000000d0d31e13): fill_kobj_path: path = '/devices/virtual/block/loop3' xfrm4_rcv_spi include/net/xfrm.h:1625 [inline] xfrm4_rcv+0x13c/0x190 net/ipv4/xfrm4_input.c:175 xfrm4_esp_rcv+0x18c/0x380 net/ipv4/xfrm4_protocol.c:100 ip_protocol_deliver_rcu+0xb6/0xa20 net/ipv4/ip_input.c:208 kobject: 'loop3' (00000000d0d31e13): kobject_uevent_env ip_local_deliver_finish+0x23b/0x390 net/ipv4/ip_input.c:234 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip_local_deliver+0x1f0/0x740 net/ipv4/ip_input.c:255 kobject: 'loop3' (00000000d0d31e13): fill_kobj_path: path = '/devices/virtual/block/loop3' dst_input include/net/dst.h:450 [inline] ip_rcv_finish+0x1f4/0x2f0 net/ipv4/ip_input.c:414 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip_rcv+0xed/0x620 net/ipv4/ip_input.c:523 kobject: 'loop2' (0000000026ff51b7): kobject_uevent_env __netif_receive_skb_one_core+0x160/0x210 net/core/dev.c:4973 kobject: 'loop2' (0000000026ff51b7): fill_kobj_path: path = '/devices/virtual/block/loop2' __netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5083 netif_receive_skb_internal+0x11e/0x690 net/core/dev.c:5186 kobject: 'loop0' (00000000e49a2d24): kobject_uevent_env kobject: 'loop0' (00000000e49a2d24): fill_kobj_path: path = '/devices/virtual/block/loop0' 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:1975 tun_chr_write_iter+0xbd/0x160 drivers/net/tun.c:2020 call_write_iter include/linux/fs.h:1862 [inline] do_iter_readv_writev+0x902/0xbc0 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+0x1ee/0x370 fs/read_write.c:1001 do_writev+0x11a/0x300 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+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457d81 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:00007fdbfedcdba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 000000000000fed1 RCX: 0000000000457d81 RDX: 0000000000000001 RSI: 00007fdbfedcdbf0 RDI: 00000000000000f0 RBP: 000000002000a000 R08: 00000000000000f0 R09: 0000000000000000 R10: 0000000000000064 R11: 0000000000000293 R12: 00007fdbfedce6d4 R13: 00000000004c6426 R14: 00000000004db660 R15: 0000000000000004 Modules linked in: ---[ end trace a5a046a3b3c3fd41 ]--- 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:ffff8880988deda0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8880963d8780 RCX: ffffc90007df3000 RDX: 0000000000000000 RSI: ffffffff86c5ecaa RDI: ffff888064c9f188 RBP: ffff8880988dedd8 R08: ffff88808d494200 R09: ffffed1015cc5b90 R10: ffffed1015cc5b8f R11: ffff8880ae62dc7b R12: 00000000ffffffff R13: 0000000000000000 R14: ffffffffffffffff R15: 0000000000000001 FS: 00007fdbfedce700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa3d3d0a518 CR3: 000000009ad15000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400