CR0=0000000080050033 CR3=00000001d2b65000 CR4=00000000001426f0 Sysenter RSP=fffffe0000002200 CS:RIP=0010:ffffffff87e01360 EFER = 0x0000000000000d01 PAT = 0x0407050600070106 *** Control State *** ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:28! PinBased=0000003f CPUBased=b5986dfe SecondaryExec=000000c2 EntryControls=0000d1ff ExitControls=002fefff ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000 VMEntry: intr_info=80000020 errcode=00000000 ilen=00000000 invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 9071 Comm: syz-executor5 Not tainted 4.20.0-rc4+ #139 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_add_valid.cold.2+0x23/0x2a lib/list_debug.c:26 Code: e8 60 22 d2 fd 0f 0b 48 89 d9 48 c7 c7 60 d6 60 88 e8 4f 22 d2 fd 0f 0b 48 89 f1 48 c7 c7 e0 d6 60 88 48 89 de e8 3b 22 d2 fd <0f> 0b 90 90 90 90 90 55 48 89 e5 41 57 41 56 49 be 00 00 00 00 00 RSP: 0018:ffff8881842c7948 EFLAGS: 00010286 RAX: 0000000000000075 RBX: ffffffff89db43a0 RCX: ffffc9000feba000 RDX: 0000000000000000 RSI: ffffffff8165fbe5 RDI: 0000000000000005 RBP: ffff8881842c7960 R08: ffff88818036e440 R09: ffffed103b5c5020 R10: ffffed103b5c5020 R11: ffff8881dae28107 R12: ffff88817ecc94a0 R13: ffff88817ecc94a0 R14: ffff8881d7105820 R15: ffff88817ecc9670 FS: 00007fedd3d6e700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000015920d8 CR3: 00000001cdea5000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_add include/linux/list.h:60 [inline] list_add_tail include/linux/list.h:93 [inline] cma_listen_on_all drivers/infiniband/core/cma.c:2474 [inline] rdma_listen+0x6dc/0x990 drivers/infiniband/core/cma.c:3489 ucma_listen+0x1a4/0x260 drivers/infiniband/core/ucma.c:1100 ucma_write+0x365/0x460 drivers/infiniband/core/ucma.c:1689 __vfs_write+0x119/0x9f0 fs/read_write.c:485 vfs_write+0x1fc/0x560 fs/read_write.c:549 ksys_write+0x101/0x260 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 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 RSP: 002b:00007fedd3d6dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 RDX: 0000000000000010 RSI: 0000000020000100 RDI: 0000000000000004 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fedd3d6e6d4 R13: 00000000004c5b7d R14: 00000000004d9e68 R15: 00000000ffffffff Modules linked in: kobject: 'erspan0' (00000000849c20b5): fill_kobj_path: path = '/devices/virtual/net/erspan0' kobject: 'queues' (00000000a26182f6): kobject_add_internal: parent: 'erspan0', set: '' kobject: 'loop3' (00000000f073d34a): kobject_uevent_env kobject: 'queues' (00000000a26182f6): kobject_uevent_env kobject: 'queues' (00000000a26182f6): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop3' (00000000f073d34a): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'rx-0' (00000000a7a562f9): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (00000000a7a562f9): kobject_uevent_env kobject: 'rx-0' (00000000a7a562f9): fill_kobj_path: path = '/devices/virtual/net/erspan0/queues/rx-0' kobject: 'tx-0' (000000001fe36a60): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (000000001fe36a60): kobject_uevent_env kobject: 'tx-0' (000000001fe36a60): fill_kobj_path: path = '/devices/virtual/net/erspan0/queues/tx-0' ---[ end trace 4788ed600117246e ]--- RIP: 0010:__list_add_valid.cold.2+0x23/0x2a lib/list_debug.c:26 Code: e8 60 22 d2 fd 0f 0b 48 89 d9 48 c7 c7 60 d6 60 88 e8 4f 22 d2 fd 0f 0b 48 89 f1 48 c7 c7 e0 d6 60 88 48 89 de e8 3b 22 d2 fd <0f> 0b 90 90 90 90 90 55 48 89 e5 41 57 41 56 49 be 00 00 00 00 00 kobject: 'ip_vti0' (000000008b0739ec): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'ip_vti0' (000000008b0739ec): kobject_uevent_env kobject: 'ip_vti0' (000000008b0739ec): fill_kobj_path: path = '/devices/virtual/net/ip_vti0' RSP: 0018:ffff8881842c7948 EFLAGS: 00010286 kobject: 'queues' (00000000f27f2afe): kobject_add_internal: parent: 'ip_vti0', set: '' RAX: 0000000000000075 RBX: ffffffff89db43a0 RCX: ffffc9000feba000 RDX: 0000000000000000 RSI: ffffffff8165fbe5 RDI: 0000000000000005 kobject: 'queues' (00000000f27f2afe): kobject_uevent_env VMExit: intr_info=00000000 errcode=00000000 ilen=00000000 reason=80000021 qualification=0000000000000000 IDTVectoring: info=00000000 errcode=00000000 TSC Offset = 0xfffffd8b56522c29 EPT pointer = 0x00000001a979b01e kobject: 'kvm' (00000000afdff5f4): kobject_uevent_env kobject: 'queues' (00000000f27f2afe): kobject_uevent_env: filter function caused the event to drop! RBP: ffff8881842c7960 R08: ffff88818036e440 R09: ffffed103b5c5020 R10: ffffed103b5c5020 R11: ffff8881dae28107 R12: ffff88817ecc94a0 kobject: 'kvm' (00000000afdff5f4): fill_kobj_path: path = '/devices/virtual/misc/kvm' R13: ffff88817ecc94a0 R14: ffff8881d7105820 R15: ffff88817ecc9670 kobject: 'rx-0' (000000006fe1a303): kobject_add_internal: parent: 'queues', set: 'queues' FS: 00007fedd3d6e700(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'rx-0' (000000006fe1a303): kobject_uevent_env kobject: 'rx-0' (000000006fe1a303): fill_kobj_path: path = '/devices/virtual/net/ip_vti0/queues/rx-0' kobject: 'tx-0' (00000000ce2f0d4b): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop2' (00000000135d0425): kobject_uevent_env kobject: 'loop2' (00000000135d0425): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'tx-0' (00000000ce2f0d4b): kobject_uevent_env CR2: 0000001b30828000 CR3: 00000001cdea5000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kobject: 'tx-0' (00000000ce2f0d4b): fill_kobj_path: path = '/devices/virtual/net/ip_vti0/queues/tx-0'