Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x17 lib/fault-inject.c:149 kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 30495 Comm: syz-executor0 Not tainted 4.19.0-next-20181102+ #104 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:icmp_timeout_obj_to_nlattr+0x77/0x170 net/netfilter/nf_conntrack_proto_icmp.c:297 __should_failslab+0x124/0x180 mm/failslab.c:32 Code: b5 41 c7 00 f1 f1 f1 f1 c7 40 04 04 f2 f2 f2 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 c0 aa 22 fb 4c 89 e8 48 c1 e8 03 <42> 0f b6 14 38 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 should_failslab+0x9/0x14 mm/slab_common.c:1578 RSP: 0018:ffff8801833cf220 EFLAGS: 00010246 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] __do_kmalloc mm/slab.c:3720 [inline] __kmalloc+0x2e0/0x760 mm/slab.c:3731 RAX: 0000000000000000 RBX: 1ffff10030679e45 RCX: ffffc90002569000 RDX: 0000000000016f5c RSI: ffffffff865cbdb0 RDI: ffff8801b8a12b80 RBP: ffff8801833cf2b0 R08: ffff8801bcd78280 R09: ffff8801bb762ca8 R10: ffffed00376ec594 R11: ffff8801bb762ca0 R12: ffff8801b8a12b80 kmalloc_array include/linux/slab.h:669 [inline] rw_copy_check_uvector+0x364/0x3e0 fs/read_write.c:781 R13: 0000000000000000 R14: ffff8801833cf288 R15: dffffc0000000000 FS: 00007f91a0086700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 import_iovec+0xcf/0x4b0 lib/iov_iter.c:1571 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32722000 CR3: 00000001d8038000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 vfs_readv+0xf5/0x1c0 fs/read_write.c:984 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: cttimeout_default_fill_info net/netfilter/nfnetlink_cttimeout.c:411 [inline] cttimeout_default_get+0x644/0x9e0 net/netfilter/nfnetlink_cttimeout.c:457 do_preadv+0x1cc/0x280 fs/read_write.c:1070 nfnetlink_rcv_msg+0xdd3/0x10c0 net/netfilter/nfnetlink.c:228 __do_sys_preadv fs/read_write.c:1120 [inline] __se_sys_preadv fs/read_write.c:1115 [inline] __x64_sys_preadv+0x9a/0xf0 fs/read_write.c:1115 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457569 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2477 RSP: 002b:00007f489fe4dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00007f489fe4dc90 RCX: 0000000000457569 RDX: 0000000000000367 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 nfnetlink_rcv+0x1c0/0x4d0 net/netfilter/nfnetlink.c:560 R10: 0000000000000012 R11: 0000000000000246 R12: 00007f489fe4e6d4 R13: 00000000004c32f9 R14: 00000000004d4f48 R15: 0000000000000006 kobject: 'loop5' (000000006db988c8): kobject_uevent_env netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1336 netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1917 kobject: 'kvm' (000000001b18cbdb): kobject_uevent_env kobject: 'loop5' (000000006db988c8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'kvm' (000000001b18cbdb): kobject_uevent_env sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:632 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2117 kobject: 'kvm' (000000001b18cbdb): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (000000001b18cbdb): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (000000001b18cbdb): kobject_uevent_env kobject: 'kvm' (000000001b18cbdb): fill_kobj_path: path = '/devices/virtual/misc/kvm' __sys_sendmsg+0x11d/0x280 net/socket.c:2155 kobject: 'loop4' (00000000e0373d0c): kobject_uevent_env kobject: 'loop4' (00000000e0373d0c): fill_kobj_path: path = '/devices/virtual/block/loop4' __do_sys_sendmsg net/socket.c:2164 [inline] __se_sys_sendmsg net/socket.c:2162 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2162 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 kobject: 'loop3' (0000000060869133): kobject_uevent_env entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457569 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f91a0085c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 RDX: 0000000000000000 RSI: 0000000020dddfc8 RDI: 0000000000000003 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f91a00866d4 R13: 00000000004c3b01 R14: 00000000004d5bf0 R15: 00000000ffffffff Modules linked in: kobject: 'loop3' (0000000060869133): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (000000001b18cbdb): kobject_uevent_env kobject: 'kvm' (000000001b18cbdb): kobject_uevent_env kobject: 'loop2' (000000003e32ac35): kobject_uevent_env kobject: 'kvm' (000000001b18cbdb): kobject_uevent_env kobject: 'kvm' (000000001b18cbdb): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (000000003e32ac35): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000006db988c8): kobject_uevent_env kobject: 'kvm' (000000001b18cbdb): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (000000001b18cbdb): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop5' (000000006db988c8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (0000000060869133): kobject_uevent_env kobject: 'loop3' (0000000060869133): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (000000001b18cbdb): kobject_uevent_env kobject: 'kvm' (000000001b18cbdb): kobject_uevent_env kobject: 'kvm' (000000001b18cbdb): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (000000001b18cbdb): kobject_uevent_env ---[ end trace d32eb374b4e8efa6 ]--- kobject: 'loop5' (000000006db988c8): kobject_uevent_env kobject: 'loop5' (000000006db988c8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'kvm' (000000001b18cbdb): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (000000001b18cbdb): fill_kobj_path: path = '/devices/virtual/misc/kvm' netlink: 'syz-executor0': attribute type 3 has an invalid length. kobject: 'loop2' (000000003e32ac35): kobject_uevent_env kobject: 'loop2' (000000003e32ac35): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (000000001b18cbdb): kobject_uevent_env netlink: 'syz-executor0': attribute type 2 has an invalid length. kobject: 'kvm' (000000001b18cbdb): kobject_uevent_env kobject: 'loop1' (0000000010a437aa): kobject_uevent_env kobject: 'kvm' (000000001b18cbdb): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (000000001b18cbdb): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1' (0000000010a437aa): fill_kobj_path: path = '/devices/virtual/block/loop1' RIP: 0010:icmp_timeout_obj_to_nlattr+0x77/0x170 net/netfilter/nf_conntrack_proto_icmp.c:297 Code: b5 41 c7 00 f1 f1 f1 f1 c7 40 04 04 f2 f2 f2 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 c0 aa 22 fb 4c 89 e8 48 c1 e8 03 <42> 0f b6 14 38 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 kobject: 'loop3' (0000000060869133): kobject_uevent_env kobject: 'loop3' (0000000060869133): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (000000001b18cbdb): kobject_uevent_env kobject: 'loop4' (00000000e0373d0c): kobject_uevent_env kobject: 'kvm' (000000001b18cbdb): kobject_uevent_env kobject: 'loop4' (00000000e0373d0c): fill_kobj_path: path = '/devices/virtual/block/loop4' RSP: 0018:ffff8801833cf220 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 1ffff10030679e45 RCX: ffffc90002569000 RDX: 0000000000016f5c RSI: ffffffff865cbdb0 RDI: ffff8801b8a12b80 RBP: ffff8801833cf2b0 R08: ffff8801bcd78280 R09: ffff8801bb762ca8 R10: ffffed00376ec594 R11: ffff8801bb762ca0 R12: ffff8801b8a12b80 R13: 0000000000000000 R14: ffff8801833cf288 R15: dffffc0000000000 kobject: 'loop3' (0000000060869133): kobject_uevent_env kobject: 'kvm' (000000001b18cbdb): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (0000000060869133): fill_kobj_path: path = '/devices/virtual/block/loop3' FS: 00007f91a0086700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 kobject: 'kvm' (000000001b18cbdb): fill_kobj_path: path = '/devices/virtual/misc/kvm' CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d421000 CR3: 00000001d8038000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400