input:  as /devices/virtual/input/input1291
ptrace attach of "/root/syz-executor2"[2857] was attempted by "/root/syz-executor2"[19842]
input:  as /devices/virtual/input/input1292
list_add corruption. prev->next should be next (ffffffff89db3d80), but was 0000000000000000. (prev=ffff8881ce4d2b60).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:28!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 19855 Comm: syz-executor2 Not tainted 4.20.0-rc4+ #352
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 10 2e d2 fd 0f 0b 48 89 d9 48 c7 c7 20 d2 60 88 e8 ff 2d d2 fd 0f 0b 48 89 f1 48 c7 c7 a0 d2 60 88 48 89 de e8 eb 2d 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:ffff8880b4627948 EFLAGS: 00010286
RAX: 0000000000000075 RBX: ffffffff89db3d80 RCX: ffffc90005a50000
RDX: 0000000000000000 RSI: ffffffff8165eaf5 RDI: 0000000000000005
RBP: ffff8880b4627960 R08: ffff8880b461c600 R09: ffffed103b5e5020
R10: ffffed103b5e5020 R11: ffff8881daf28107 R12: ffff8880ba211560
R13: ffff8880ba211560 R14: ffff8881ce4d2b60 R15: ffff8880ba211730
FS:  00007f8f4f7a4700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000072c000 CR3: 00000000b40bf000 CR4: 00000000001406e0
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:00007f8f4f7a3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569
RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000003
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8f4f7a46d4
R13: 00000000004c5b7d R14: 00000000004d9e68 R15: 00000000ffffffff
Modules linked in:
---[ end trace 250cf59c945254ee ]---
RIP: 0010:__list_add_valid.cold.2+0x23/0x2a lib/list_debug.c:26
kobject: 'event4' (000000002b1370b0): kobject_uevent_env
kobject: 'event4' (000000002b1370b0): fill_kobj_path: path = '/devices/virtual/input/input1292/event4'
Code: e8 10 2e d2 fd 0f 0b 48 89 d9 48 c7 c7 20 d2 60 88 e8 ff 2d d2 fd 0f 0b 48 89 f1 48 c7 c7 a0 d2 60 88 48 89 de e8 eb 2d 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: '(null)' (000000009e1268a3): kobject_cleanup, parent 000000002b1370b0
kobject: '(null)' (000000009e1268a3): calling ktype release
RSP: 0018:ffff8880b4627948 EFLAGS: 00010286
RAX: 0000000000000075 RBX: ffffffff89db3d80 RCX: ffffc90005a50000
kobject: 'event4' (000000002b1370b0): kobject_cleanup, parent           (null)
kobject: 'event4' (000000002b1370b0): calling ktype release
RDX: 0000000000000000 RSI: ffffffff8165eaf5 RDI: 0000000000000005
kobject: 'event4': free name
kobject: 'input1292' (00000000a9f97ea4): kobject_uevent_env
RBP: ffff8880b4627960 R08: ffff8880b461c600 R09: ffffed103b5e5020
kobject: 'input1292' (00000000a9f97ea4): fill_kobj_path: path = '/devices/virtual/input/input1292'
R10: ffffed103b5e5020 R11: ffff8881daf28107 R12: ffff8880ba211560
kobject: 'input1292' (00000000a9f97ea4): kobject_cleanup, parent           (null)
kobject: 'input1292' (00000000a9f97ea4): calling ktype release
kobject: 'rfkill7777' (00000000bce7731f): kobject_add_internal: parent: 'phy7775', set: 'devices'
kobject: 'rfkill7777' (00000000bce7731f): kobject_uevent_env
kobject: 'input1292': free name
kobject: 'rfkill7777' (00000000bce7731f): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim7777/ieee80211/phy7775/rfkill7777'
R13: ffff8880ba211560 R14: ffff8881ce4d2b60 R15: ffff8880ba211730
kobject: 'loop1' (00000000ec545468): kobject_uevent_env
FS:  00007f8f4f7a4700(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000
kobject: 'loop1' (00000000ec545468): fill_kobj_path: path = '/devices/virtual/block/loop1'
ieee80211 phy7775: Selected rate control algorithm 'minstrel_ht'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'input1293' (00000000b29035cc): kobject_add_internal: parent: 'input', set: 'devices'
CR2: 00007fc26b252db8 CR3: 00000000b40bf000 CR4: 00000000001406f0
kobject: 'input1293' (00000000b29035cc): kobject_uevent_env
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'input1293' (00000000b29035cc): fill_kobj_path: path = '/devices/virtual/input/input1293'
kobject: 'net' (000000005cdb876d): kobject_add_internal: parent: 'hwsim7777', set: '(null)'