IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 kasan: CONFIG_KASAN_INLINE enabled IPVS: ftp: loaded support on port[0] = 21 kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5592 Comm: syz-executor237 Not tainted 4.19.0-rc3-next-20180912+ #72 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:mqueue_get_tree+0xba/0x2e0 ipc/mqueue.c:362 Code: 4c 8d b3 98 00 00 00 4d 85 ed 0f 84 d1 00 00 00 e8 6b 44 3f fe 49 8d 7d 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 e3 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b RSP: 0018:ffff8801cc477928 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8801cc99dac0 RCX: ffffffff8160aca1 RDX: 0000000000000001 RSI: ffffffff833deb15 RDI: 0000000000000009 RBP: ffff8801cc477948 R08: fffffbfff13555fd R09: fffffbfff13555fc R10: fffffbfff13555fc R11: ffffffff89aaafe3 R12: ffff8801d7abd340 R13: 0000000000000001 R14: ffff8801cc99db58 R15: ffff8801cc99db58 FS: 0000000001625940(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000046d990 CR3: 00000001c4872000 CR4: 00000000001406e0 Call Trace: vfs_get_tree+0x1cb/0x5c0 fs/super.c:1787 mq_create_mount+0xe3/0x190 ipc/mqueue.c:415 IPVS: ftp: loaded support on port[0] = 21 mq_init_ns+0x15a/0x210 ipc/mqueue.c:1621 kobject: 'lo' (0000000029b89a7a): kobject_add_internal: parent: 'net', set: 'devices' create_ipc_ns ipc/namespace.c:58 [inline] copy_ipcs+0x3d2/0x580 ipc/namespace.c:84 kobject: 'lo' (0000000029b89a7a): kobject_uevent_env kobject: 'lo' (0000000029b89a7a): fill_kobj_path: path = '/devices/virtual/net/lo' create_new_namespaces+0x376/0x900 kernel/nsproxy.c:87 kobject: 'queues' (00000000b0e6672b): kobject_add_internal: parent: 'lo', set: '' kobject: 'queues' (00000000b0e6672b): kobject_uevent_env unshare_nsproxy_namespaces+0xc3/0x1f0 kernel/nsproxy.c:206 kobject: 'queues' (00000000b0e6672b): kobject_uevent_env: filter function caused the event to drop! ksys_unshare+0x79c/0x10b0 kernel/fork.c:2535 kobject: 'rx-0' (00000000ff0aa779): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (00000000ff0aa779): kobject_uevent_env kobject: 'rx-0' (00000000ff0aa779): fill_kobj_path: path = '/devices/virtual/net/lo/queues/rx-0' kobject: 'tx-0' (000000003045efd6): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (000000003045efd6): kobject_uevent_env kobject: 'tx-0' (000000003045efd6): fill_kobj_path: path = '/devices/virtual/net/lo/queues/tx-0' kobject: 'lo' (00000000eaa8fae5): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'lo' (00000000eaa8fae5): kobject_uevent_env kobject: 'lo' (00000000eaa8fae5): fill_kobj_path: path = '/devices/virtual/net/lo' kobject: 'queues' (00000000644650c0): kobject_add_internal: parent: 'lo', set: '' kobject: 'queues' (00000000644650c0): kobject_uevent_env __do_sys_unshare kernel/fork.c:2603 [inline] __se_sys_unshare kernel/fork.c:2601 [inline] __x64_sys_unshare+0x31/0x40 kernel/fork.c:2601 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 kobject: 'queues' (00000000644650c0): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (00000000000978af): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (00000000000978af): kobject_uevent_env kobject: 'rx-0' (00000000000978af): fill_kobj_path: path = '/devices/virtual/net/lo/queues/rx-0' kobject: 'tx-0' (00000000e2d795a6): kobject_add_internal: parent: 'queues', set: 'queues' entry_SYSCALL_64_after_hwframe+0x49/0xbe kobject: 'tx-0' (00000000e2d795a6): kobject_uevent_env RIP: 0033:0x445857 Code: 00 00 00 b8 63 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 ed df fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 cd df fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffd12bd6e88 EFLAGS: 00000217 kobject: 'tx-0' (00000000e2d795a6): fill_kobj_path: path = '/devices/virtual/net/lo/queues/tx-0' ORIG_RAX: 0000000000000110 kobject: 'lo' (0000000082fe493c): kobject_add_internal: parent: 'net', set: 'devices' RAX: ffffffffffffffda RBX: 00007ffd12bd6ea0 RCX: 0000000000445857 kobject: 'lo' (0000000082fe493c): kobject_uevent_env RDX: 0000000000000000 RSI: 00007ffd12bd6e90 RDI: 0000000008000000 kobject: 'lo' (0000000082fe493c): fill_kobj_path: path = '/devices/virtual/net/lo' RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000001625940 R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000403cb0 R13: 0000000000403d40 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: kobject: 'queues' (0000000079e0f718): kobject_add_internal: parent: 'lo', set: '' ---[ end trace 1d256cdd44dfeb5c ]--- RIP: 0010:mqueue_get_tree+0xba/0x2e0 ipc/mqueue.c:362 Code: 4c 8d b3 98 00 00 00 4d 85 ed 0f 84 d1 00 00 00 e8 6b 44 3f fe 49 8d 7d 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 e3 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b RSP: 0018:ffff8801cc477928 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8801cc99dac0 RCX: ffffffff8160aca1 RDX: 0000000000000001 RSI: ffffffff833deb15 RDI: 0000000000000009 RBP: ffff8801cc477948 R08: fffffbfff13555fd R09: fffffbfff13555fc R10: fffffbfff13555fc R11: ffffffff89aaafe3 R12: ffff8801d7abd340 R13: 0000000000000001 R14: ffff8801cc99db58 R15: ffff8801cc99db58 FS: 0000000001625940(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000046d990 CR3: 00000001c4872000 CR4: 00000000001406e0