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: 'batman_adv' (ffff88809e7df480): kobject_add_internal: parent: 'veth384', set: '' Modules linked in: CPU: 1 PID: 15084 Comm: syz-executor.2 Not tainted 4.14.145 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8880974ee2c0 task.stack: ffff888067818000 RIP: 0010:tcp_sendmsg_locked+0x50e/0x3200 net/ipv4/tcp.c:1281 RSP: 0018:ffff88806781f9b0 EFLAGS: 00010206 RAX: 0000000000000012 RBX: 0000000000000000 RCX: ffffc9000927f000 RDX: 000000000000011c RSI: ffffffff85240e44 RDI: 0000000000000090 RBP: ffff88806781fb48 R08: ffff8880974ee2c0 R09: 0000000000000001 R10: 0000000000000000 R11: ffff8880974ee2c0 R12: dffffc0000000000 R13: ffff8880a0d98800 R14: ffff88806781fc28 R15: ffff88803aed0f80 FS: 00007f0321fc4700(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa6eea52000 CR3: 0000000063cd3000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'loop3' (ffff8880a4a3aae0): kobject_uevent_env DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kobject: 'loop3' (ffff8880a4a3aae0): fill_kobj_path: path = '/devices/virtual/block/loop3' Call Trace: kobject: 'veth385' (ffff8880993cf3f0): kobject_add_internal: parent: 'net', set: 'devices' tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1457 kobject: 'veth385' (ffff8880993cf3f0): kobject_uevent_env 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 sock_write_iter+0x21d/0x390 net/socket.c:925 kobject: 'veth385' (ffff8880993cf3f0): fill_kobj_path: path = '/devices/virtual/net/veth385' kobject: 'queues' (ffff888097ed6e48): kobject_add_internal: parent: 'veth385', set: '' call_write_iter include/linux/fs.h:1777 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x4a7/0x6b0 fs/read_write.c:482 kobject: 'queues' (ffff888097ed6e48): kobject_uevent_env vfs_write+0x198/0x500 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xfd/0x230 fs/read_write.c:582 kobject: 'queues' (ffff888097ed6e48): kobject_uevent_env: filter function caused the event to drop! do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 kobject: 'rx-0' (ffff8880a7d83c10): kobject_add_internal: parent: 'queues', set: 'queues' entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x459a09 RSP: 002b:00007f0321fc3c78 EFLAGS: 00000246 kobject: 'rx-0' (ffff8880a7d83c10): kobject_uevent_env ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459a09 RDX: 00000000fffffffe RSI: 0000000020000380 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0321fc46d4 R13: 00000000004c5f88 R14: 00000000004e0610 R15: 00000000ffffffff Code: kobject: 'rx-0' (ffff8880a7d83c10): fill_kobj_path: path = '/devices/virtual/net/veth385/queues/rx-0' d4 38 fc 4d 85 ed 0f 84 40 08 00 00 e8 ac d4 kobject: 'tx-0' (ffff888097a6d558): kobject_add_internal: parent: 'queues', set: 'queues' 38 fc 8b 85 78 ff ff ff 48 8d bb 90 00 00 00 89 85 50 kobject: 'tx-0' (ffff888097a6d558): kobject_uevent_env ff ff ff 48 89 f8 48 c1 e8 03 <42> kobject: 'tx-0' (ffff888097a6d558): fill_kobj_path: path = '/devices/virtual/net/veth385/queues/tx-0' 0f b6 04 20 84 c0 kobject: 'batman_adv' (ffff888087b73280): kobject_add_internal: parent: 'veth385', set: '' 74 06 0f 8e 4a kobject: 'veth386' (ffff88803638eb30): kobject_add_internal: parent: 'net', set: 'devices' 25 00 00 f6 83 90 00 00 00 RIP: tcp_sendmsg_locked+0x50e/0x3200 net/ipv4/tcp.c:1281 RSP: ffff88806781f9b0 ---[ end trace 05b10feba6412f29 ]--- kobject: 'loop1' (ffff8880a498b2a0): kobject_uevent_env