RDS: rds_bind could not find a transport for 224.0.0.2, load rds_tcp or rds_rdma? kasan: CONFIG_KASAN_INLINE enabled RDS: rds_bind could not find a transport for 224.0.0.2, load rds_tcp or rds_rdma? 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: 8520 Comm: syz-executor0 Not tainted 4.14.0+ #129 Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801c72e04c0 task.stack: ffff8801c6f88000 RIP: 0010:__rds_rdma_map+0x133/0x1050 net/rds/rdma.c:191 RSP: 0018:ffff8801c6f8fa28 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: ffff8801c6f8fbd0 RCX: ffffffff84c0d73d RDX: 0000000000000018 RSI: ffffc9000186f000 RDI: 00000000000000c0 RBP: ffff8801c6f8fb90 R08: ffffed0038df1f96 R09: ffffed0038df1f96 R10: 0000000000000000 R11: ffffed0038df1f95 R12: 0000000000000000 R13: ffff8801ca8415c0 R14: 0000000000000000 R15: ffff8801ca8415c0 FS: 00007f1d5e36f700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000463450 CR3: 00000001a2050000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rds_get_mr_for_dest+0x1bb/0x290 net/rds/rdma.c:357 rds_setsockopt+0x6b9/0x970 net/rds/af_rds.c:347 SYSC_setsockopt net/socket.c:1851 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1830 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x452879 RSP: 002b:00007f1d5e36ebe8 EFLAGS: 00000212 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00000000007580d8 RCX: 0000000000452879 RDX: 0000000000000007 RSI: 0000400000000114 RDI: 000000000000001a RBP: 0000000000000086 R08: 00000000000000a0 R09: 0000000000000000 R10: 0000000020000ffc R11: 0000000000000212 R12: 00000000006f2608 R13: 00000000ffffffff R14: 00007f1d5e36f6d4 R15: 0000000000000012 Code: 57 0d 00 00 48 8b 85 f0 fe ff ff 4c 8b a0 c0 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 c0 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 6a 0e 00 00 49 83 bc 24 c0 00 00 00 00 0f 84 RIP: __rds_rdma_map+0x133/0x1050 net/rds/rdma.c:191 RSP: ffff8801c6f8fa28 ---[ end trace cc6b7e70b9f6b551 ]--- Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable Kernel panic - not syncing: Fatal exception Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..