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: 1 PID: 19976 Comm: syz-executor4 Not tainted 4.16.0-rc5+ #268 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rdma_resolve_addr+0x13c/0x26c0 drivers/infiniband/core/cma.c:2921 RSP: 0018:ffff8801ce0a7630 EFLAGS: 00010207 RAX: 0000000000000042 RBX: ffff8801ce0a79f4 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801ce0a79f4 RDI: 0000000000000214 RBP: ffff8801ce0a7990 R08: ffffffff87450480 R09: 0000000000000000 R10: ffff8801ce0a79a8 R11: 0000000000000000 R12: dffffc0000000000 R13: 00000000000000a0 R14: ffff8801ce0a79d8 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000f7795b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f76e5db0 CR3: 00000001ade65001 CR4: 00000000001626e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ucma_resolve_ip+0x142/0x1f0 drivers/infiniband/core/ucma.c:677 ucma_write+0x2d6/0x3d0 drivers/infiniband/core/ucma.c:1633 __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_32_irqs_on arch/x86/entry/common.c:330 [inline] do_fast_syscall_32+0x3ec/0xf9f arch/x86/entry/common.c:392 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7fbac99 RSP: 002b:00000000f779509c EFLAGS: 00000286 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 0000000020000000 RDX: 0000000000000009 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Code: 31 c0 e8 c8 98 53 fd 48 89 df e8 d0 f5 f5 ff 4c 89 ef 48 63 d0 48 89 de e8 c2 c8 8b fd 49 8d bf 14 02 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 14 20 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f RIP: rdma_resolve_addr+0x13c/0x26c0 drivers/infiniband/core/cma.c:2921 RSP: ffff8801ce0a7630 ---[ end trace e148a5baf6d5477f ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..