binder: 23307:23308 got transaction to invalid handle binder: 23307:23308 transaction failed 29201/-22, size 0-0 line 2848 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: 23302 Comm: syz-executor7 Not tainted 4.17.0-rc1+ #8 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rdma_cap_ib_sa include/rdma/ib_verbs.h:2840 [inline] RIP: 0010:rdma_resolve_route+0x134/0x2160 drivers/infiniband/core/cma.c:2668 RSP: 0018:ffff8801c94e7850 EFLAGS: 00010202 RAX: 0000000000000000 RBX: ffff8801d21d6ec0 RCX: 0000000000000029 RDX: dffffc0000000000 RSI: 0000000000000004 RDI: 0000000000000148 RBP: ffff8801c94e7a00 R08: ffffed003a43ae3d R09: ffffed003a43ae3c R10: ffffed003a43ae3c R11: ffff8801d21d71e3 R12: 1ffff1003929cf12 R13: dffffc0000000000 R14: ffff8801d21d7078 R15: 0000000000000000 FS: 00007f3bc6ab3700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2bc21000 CR3: 00000001c33df000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ucma_resolve_route+0x179/0x1c0 drivers/infiniband/core/ucma.c:741 ucma_write+0x328/0x410 drivers/infiniband/core/ucma.c:1664 __vfs_write+0x10b/0x960 fs/read_write.c:485 vfs_write+0x1f8/0x560 fs/read_write.c:549 ksys_write+0xf9/0x250 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+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455379 RSP: 002b:00007f3bc6ab2c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f3bc6ab36d4 RCX: 0000000000455379 RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000013 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000006ce R14: 00000000006fd3f0 R15: 0000000000000000 Code: ff df 48 c1 ea 03 80 3c 02 00 0f 85 14 1c 00 00 48 ba 00 00 00 00 00 fc ff df 48 8b 03 48 8d b8 48 01 00 00 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 d7 1b 00 00 45 0f b6 ef 49 c1 e5 04 4c 03 a8 RIP: rdma_cap_ib_sa include/rdma/ib_verbs.h:2840 [inline] RSP: ffff8801c94e7850 RIP: rdma_resolve_route+0x134/0x2160 drivers/infiniband/core/cma.c:2668 RSP: ffff8801c94e7850 ---[ end trace cb4cf2455da66293 ]---