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 CPU: 1 PID: 9757 Comm: syz-executor4 Not tainted 4.17.0+ #84 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rds_ib_get_mr+0x60/0x240 net/rds/ib_rdma.c:544 Code: 48 c1 ea 03 80 3c 02 00 0f 85 f0 01 00 00 4c 8b bb 90 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7f 68 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c0 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b RSP: 0018:ffff88018ff77988 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8801ac88cec0 RCX: ffffc90007628000 RDX: 000000000000000d RSI: ffffffff87077882 RDI: 0000000000000068 RBP: ffff88018ff779b8 R08: ffff8801b4388040 R09: ffff8801d7358c80 R10: ffffed003ae6b193 R11: ffff8801d7358c9f R12: ffff8801d7358c80 R13: 0000000000000001 R14: ffff8801d78f649c R15: 0000000000000000 FS: 00007f1f3ef15700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4dd09d0638 CR3: 00000001d7b42000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __rds_rdma_map+0x79f/0x11a0 net/rds/rdma.c:271 rds_get_mr+0xae/0xf0 net/rds/rdma.c:333 rds_setsockopt+0x2dd/0xae0 net/rds/af_rds.c:347 __sys_setsockopt+0x1bd/0x390 net/socket.c:1947 __do_sys_setsockopt net/socket.c:1958 [inline] __se_sys_setsockopt net/socket.c:1955 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1955 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455b29 Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f1f3ef14c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f1f3ef156d4 RCX: 0000000000455b29 RDX: 0000000000000002 RSI: 0000000000000114 RDI: 0000000000000017 RBP: 000000000072bf50 R08: 0000000000000020 R09: 0000000000000000 R10: 0000000020000480 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004c10cb R14: 00000000004d0dc8 R15: 0000000000000001 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace 0bb088ab396428f8 ]--- RIP: 0010:rds_ib_get_mr+0x60/0x240 net/rds/ib_rdma.c:544 Code: 48 c1 ea 03 80 3c 02 00 0f 85 f0 01 00 00 4c 8b bb 90 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7f 68 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c0 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b RSP: 0018:ffff88018ff77988 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8801ac88cec0 RCX: ffffc90007628000 RDX: 000000000000000d RSI: ffffffff87077882 RDI: 0000000000000068 RBP: ffff88018ff779b8 R08: ffff8801b4388040 R09: ffff8801d7358c80 R10: ffffed003ae6b193 R11: ffff8801d7358c9f R12: ffff8801d7358c80 R13: 0000000000000001 R14: ffff8801d78f649c R15: 0000000000000000 FS: 00007f1f3ef15700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4dd09d0638 CR3: 00000001d7b42000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400