kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 19815 Comm: syz-executor4 Not tainted 4.16.0-rc4+ #347 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rdma_listen+0x72/0x8e0 drivers/infiniband/core/cma.c:3300 RSP: 0018:ffff8801ad727998 EFLAGS: 00010207 RAX: 0000000000000042 RBX: 0000000000000000 RCX: ffffffff841d7e34 RDX: 0000000000000077 RSI: ffffc90001573000 RDI: 0000000000000214 RBP: ffff8801ad727a30 R08: ffffffff87450060 R09: 0000000000000000 R10: ffffffff88613380 R11: 0000000000000000 R12: 1ffff10035ae4f35 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000400 FS: 00007f15eedbc700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000930025 CR3: 00000001cc2a7003 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ucma_listen+0x172/0x1f0 drivers/infiniband/core/ucma.c:1064 ucma_write+0x2d6/0x3d0 drivers/infiniband/core/ucma.c:1627 __vfs_write+0xef/0x970 fs/read_write.c:480 vfs_write+0x189/0x510 fs/read_write.c:544 SYSC_write fs/read_write.c:589 [inline] SyS_write+0xef/0x220 fs/read_write.c:581 do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x453e69 RSP: 002b:00007f15eedbbc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f15eedbc6d4 RCX: 0000000000453e69 RDX: 0000000000000010 RSI: 0000000020000500 RDI: 0000000000000017 RBP: 000000000072bf58 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000672 R14: 00000000006f9b50 R15: 0000000000000001 Code: d0 7d 1d 84 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 c7 40 08 f3 f3 f3 f3 e8 1c 88 53 fd 48 8d bb 14 02 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 14 28 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f RIP: rdma_listen+0x72/0x8e0 drivers/infiniband/core/cma.c:3300 RSP: ffff8801ad727998 ---[ end trace a0c2ec3abb786445 ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..