general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 PID: 18338 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:cma_bind_listen drivers/infiniband/core/cma.c:3488 [inline]
RIP: 0010:rdma_listen+0x122/0x9a0 drivers/infiniband/core/cma.c:3602
Code: 80 3c 20 00 74 08 48 89 df e8 fa b9 d3 fb 4c 8b 2b 48 c7 c7 c0 30 54 89 31 f6 e8 89 f4 38 02 49 8d 5d 08 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 cf b9 d3 fb 48 8b 1b 48 89 d8 48
RSP: 0018:ffffc90007337c48 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffff888039a6a2c0 RDI: 0000000000000001
RBP: ffffc90007337c98 R08: dffffc0000000000 R09: fffffbfff12a861a
R10: fffffbfff12a861a R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000000000 R14: 1ffff11012d65443 R15: ffff888096b2a000
FS:  00007f3ecd19c700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3ecd19bdb8 CR3: 00000001ffafc000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ucma_listen+0x245/0x300 drivers/infiniband/core/ucma.c:1092
 ucma_write+0x2da/0x360 drivers/infiniband/core/ucma.c:1684
 __vfs_write+0xb8/0x740 fs/read_write.c:494
 vfs_write+0x270/0x580 fs/read_write.c:558
 ksys_write+0x117/0x220 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+0x7b/0x90 fs/read_write.c:620
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45c449
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:00007f3ecd19bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f3ecd19c6d4 RCX: 000000000045c449
RDX: 0000000000000010 RSI: 0000000020000040 RDI: 000000000000000b
RBP: 000000000076c060 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000cbe R14: 00000000004cea14 R15: 000000000076c06c
Modules linked in:
---[ end trace 3c1ee1a9ff581059 ]---
RIP: 0010:cma_bind_listen drivers/infiniband/core/cma.c:3488 [inline]
RIP: 0010:rdma_listen+0x122/0x9a0 drivers/infiniband/core/cma.c:3602
Code: 80 3c 20 00 74 08 48 89 df e8 fa b9 d3 fb 4c 8b 2b 48 c7 c7 c0 30 54 89 31 f6 e8 89 f4 38 02 49 8d 5d 08 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 cf b9 d3 fb 48 8b 1b 48 89 d8 48
RSP: 0018:ffffc90007337c48 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffff888039a6a2c0 RDI: 0000000000000001
RBP: ffffc90007337c98 R08: dffffc0000000000 R09: fffffbfff12a861a
R10: fffffbfff12a861a R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000000000 R14: 1ffff11012d65443 R15: ffff888096b2a000
FS:  00007f3ecd19c700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdb3e17ddb8 CR3: 00000001ffafc000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400