list_add corruption. prev->next should be next (ffff8880a7ffef70), but was ffffffff8a5d2f20. (prev=ffff888097bf51e0).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:26!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 3040 Comm: syz-executor.0 Not tainted 5.6.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__list_add_valid.cold+0x3a/0x3c lib/list_debug.c:26
Code: 0b 48 89 f2 4c 89 e1 4c 89 ee 48 c7 c7 80 da 91 88 e8 29 3a b8 fd 0f 0b 48 89 f1 48 c7 c7 00 da 91 88 4c 89 e6 e8 15 3a b8 fd <0f> 0b 4c 89 f6 48 c7 c7 a0 db 91 88 e8 04 3a b8 fd 0f 0b 4c 89 ea
RSP: 0018:ffffc90002347b70 EFLAGS: 00010286
RAX: 0000000000000075 RBX: ffff888094e71000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815ebe46 RDI: fffff52000468f60
RBP: ffffc90002347b88 R08: 0000000000000075 R09: ffffed1015d06659
R10: ffffed1015d06658 R11: ffff8880ae8332c7 R12: ffff8880a7ffef70
R13: ffff888094e711e0 R14: ffff888097bf51e0 R15: ffff888094e711e0
FS:  00007f1e880eb700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c322000 CR3: 000000020f452000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __list_add include/linux/list.h:67 [inline]
 list_add_tail include/linux/list.h:100 [inline]
 _cma_attach_to_dev+0x150/0x2f0 drivers/infiniband/core/cma.c:471
 cma_listen_on_dev+0x252/0x6a0 drivers/infiniband/core/cma.c:2493
 cma_listen_on_all drivers/infiniband/core/cma.c:2514 [inline]
 rdma_listen+0x772/0x970 drivers/infiniband/core/cma.c:3622
 ucma_listen+0x14d/0x1c0 drivers/infiniband/core/ucma.c:1092
 ucma_write+0x2d7/0x3c0 drivers/infiniband/core/ucma.c:1684
 __vfs_write+0x8a/0x110 fs/read_write.c:494
 vfs_write+0x268/0x5d0 fs/read_write.c:558
 ksys_write+0x220/0x290 fs/read_write.c:611
 __do_sys_write fs/read_write.c:623 [inline]
 __se_sys_write fs/read_write.c:620 [inline]
 __x64_sys_write+0x73/0xb0 fs/read_write.c:620
 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45c479
Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f1e880eac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1e880eb6d4 RCX: 000000000045c479
RDX: 0000000000000010 RSI: 0000000020000100 RDI: 0000000000000003
RBP: 000000000076bfc0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000cbe R14: 00000000004cea34 R15: 000000000076bfcc
Modules linked in:
---[ end trace c76844a42a9a37f9 ]---
RIP: 0010:__list_add_valid.cold+0x3a/0x3c lib/list_debug.c:26
Code: 0b 48 89 f2 4c 89 e1 4c 89 ee 48 c7 c7 80 da 91 88 e8 29 3a b8 fd 0f 0b 48 89 f1 48 c7 c7 00 da 91 88 4c 89 e6 e8 15 3a b8 fd <0f> 0b 4c 89 f6 48 c7 c7 a0 db 91 88 e8 04 3a b8 fd 0f 0b 4c 89 ea
RSP: 0018:ffffc90002347b70 EFLAGS: 00010286
RAX: 0000000000000075 RBX: ffff888094e71000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815ebe46 RDI: fffff52000468f60
RBP: ffffc90002347b88 R08: 0000000000000075 R09: ffffed1015d06659
R10: ffffed1015d06658 R11: ffff8880ae8332c7 R12: ffff8880a7ffef70
R13: ffff888094e711e0 R14: ffff888097bf51e0 R15: ffff888094e711e0
FS:  00007f1e880eb700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000f01188 CR3: 000000020f452000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400