netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [drm:drm_mode_legacy_fb_format] *ERROR* bad bpp, assuming x8r8g8b8 pixel format 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 kobject: 'loop5' (ffff8880a4a1f760): kobject_uevent_env Modules linked in: CPU: 0 PID: 8105 Comm: syz-executor.3 Not tainted 4.14.143 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888081b86640 task.stack: ffff88808d0c8000 RIP: 0010:tcp_mark_push net/ipv4/tcp.c:630 [inline] RIP: 0010:tcp_push+0xe9/0x610 net/ipv4/tcp.c:694 kobject: 'loop5' (ffff8880a4a1f760): fill_kobj_path: path = '/devices/virtual/block/loop5' RSP: 0018:ffff88808d0cfa48 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000ca5b000 RDX: 0000000000000007 RSI: ffffffff85231b30 RDI: 0000000000000038 RBP: ffff88808d0cfa98 R08: ffff88808f722a1c R09: ffff888081b86ee0 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808f722180 R13: 0000000000000000 R14: ffff88808f722a14 R15: 0000000000000000 FS: 00007f6f41450700(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000075c000 CR3: 00000000a4c56000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tcp_sendmsg_locked+0x2307/0x3200 net/ipv4/tcp.c:1426 kobject: 'loop2' (ffff8880a492ed60): kobject_uevent_env tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1457 inet_sendmsg+0x122/0x500 net/ipv4/af_inet.c:762 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 SYSC_sendto+0x206/0x310 net/socket.c:1763 kobject: 'loop2' (ffff8880a492ed60): fill_kobj_path: path = '/devices/virtual/block/loop2' SyS_sendto+0x40/0x50 net/socket.c:1731 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x4598e9 RSP: 002b:00007f6f4144fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00000000004598e9 RDX: 00000000ffffffeb RSI: 00000000200000c0 RDI: 0000000000000005 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 535e2f3003f56a5b R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6f414506d4 R13: 00000000004c7880 R14: 00000000004dd188 R15: 00000000ffffffff Code: 00 4d 8d 84 24 9c 08 00 00 4c 89 45 b8 e8 40 c7 39 fc 48 8d 7b 38 4c 8b 45 b8 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 06 0f 8e 1e 04 00 00 48 b8 00 00 00 00 00 RIP: tcp_mark_push net/ipv4/tcp.c:630 [inline] RSP: ffff88808d0cfa48 RIP: tcp_push+0xe9/0x610 net/ipv4/tcp.c:694 RSP: ffff88808d0cfa48 kobject: 'kvm' (ffff8880a6e061d0): kobject_uevent_env kobject: 'kvm' (ffff8880a6e061d0): kobject_uevent_env kobject: 'kvm' (ffff8880a6e061d0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6e061d0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6e061d0): kobject_uevent_env kobject: 'kvm' (ffff8880a6e061d0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6e061d0): kobject_uevent_env kobject: 'kvm' (ffff8880a6e061d0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'veth3' (ffff88808fa42d30): kobject_cleanup, parent (null) kobject: 'kvm' (ffff8880a6e061d0): kobject_uevent_env kobject: 'veth3' (ffff88808fa42d30): calling ktype release kobject: 'kvm' (ffff8880a6e061d0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'veth3': free name kobject: 'veth2' (ffff888096060d70): kobject_cleanup, parent (null) kobject: 'loop5' (ffff8880a4a1f760): kobject_uevent_env kobject: 'loop5' (ffff8880a4a1f760): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'veth2' (ffff888096060d70): calling ktype release kobject: 'kvm' (ffff8880a6e061d0): kobject_uevent_env kobject: 'loop4' (ffff8880a49db6e0): kobject_uevent_env kobject: 'kvm' (ffff8880a6e061d0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'veth2': free name kobject: 'loop4' (ffff8880a49db6e0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'veth2' (ffff88808ab091b0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'veth2' (ffff88808ab091b0): kobject_uevent_env kobject: 'loop2' (ffff8880a492ed60): kobject_uevent_env kobject: 'loop2' (ffff8880a492ed60): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'veth2' (ffff88808ab091b0): fill_kobj_path: path = '/devices/virtual/net/veth2' kobject: 'queues' (ffff88808ae7e048): kobject_add_internal: parent: 'veth2', set: '' kobject: 'queues' (ffff88808ae7e048): kobject_uevent_env kobject: 'queues' (ffff88808ae7e048): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff88809026a010): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff88809026a010): kobject_uevent_env kobject: 'rx-0' (ffff88809026a010): fill_kobj_path: path = '/devices/virtual/net/veth2/queues/rx-0' kobject: 'tx-0' (ffff88808bc5a5d8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff88808bc5a5d8): kobject_uevent_env kobject: 'tx-0' (ffff88808bc5a5d8): fill_kobj_path: path = '/devices/virtual/net/veth2/queues/tx-0' kobject: 'batman_adv' (ffff888092cc2380): kobject_add_internal: parent: 'veth2', set: '' kobject: 'veth3' (ffff888091bcb130): kobject_add_internal: parent: 'net', set: 'devices' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'veth3' (ffff888091bcb130): kobject_uevent_env kobject: 'veth3' (ffff888091bcb130): fill_kobj_path: path = '/devices/virtual/net/veth3' ---[ end trace c187704e7705d838 ]--- kobject: 'queues' (ffff88808eaf6048): kobject_add_internal: parent: 'veth3', set: ''