kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 7871 Comm: syz-executor979 Not tainted 5.0.0-rc4-next-20190201 #25 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rds_recv_rcvbuf_delta.part.0+0x14a/0x3f0 net/rds/recv.c:103 Code: c1 ea 03 80 3c 02 00 0f 85 6e 02 00 00 4c 8b a3 c0 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 2c 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 00 RSP: 0018:ffff8880854df670 EFLAGS: 00010007 RAX: dffffc0000000000 RBX: ffff8880864941c0 RCX: ffffffff86847eed RDX: 0000000000000005 RSI: ffffffff86847efb RDI: 000000000000002c RBP: ffff8880854df6a8 R08: ffff8880a8e1e100 R09: ffffed1010a9bec4 R10: ffffed1010a9bec3 R11: 0000000000000003 R12: 0000000000000000 R13: ffff8880864946e4 R14: 000000000002e3c0 R15: ffff8880a05a8500 FS: 0000000001b55880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000040 CR3: 000000008dc59000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rds_recv_rcvbuf_delta net/rds/recv.c:379 [inline] rds_recv_incoming+0x789/0x11f0 net/rds/recv.c:379 rds_loop_xmit+0xf3/0x2a0 net/rds/loop.c:96 rds_send_xmit+0x1113/0x2560 net/rds/send.c:355 rds_sendmsg+0x280a/0x3450 net/rds/send.c:1368 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:631 ___sys_sendmsg+0x806/0x930 net/socket.c:2114 __sys_sendmsg+0x105/0x1d0 net/socket.c:2152 __do_sys_sendmsg net/socket.c:2161 [inline] __se_sys_sendmsg net/socket.c:2159 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2159 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x442209 Code: e8 6c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 cb 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fff20ffe2a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000442209 RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000004 RBP: 000000000000d349 R08: 0000000100000000 R09: 0000000100000000 R10: 0000000100000000 R11: 0000000000000246 R12: 0000000000403060 R13: 00000000004030f0 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace d7b85300e129ea06 ]--- RIP: 0010:rds_recv_rcvbuf_delta.part.0+0x14a/0x3f0 net/rds/recv.c:103 Code: c1 ea 03 80 3c 02 00 0f 85 6e 02 00 00 4c 8b a3 c0 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 2c 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 00 RSP: 0018:ffff8880854df670 EFLAGS: 00010007 RAX: dffffc0000000000 RBX: ffff8880864941c0 RCX: ffffffff86847eed RDX: 0000000000000005 RSI: ffffffff86847efb RDI: 000000000000002c RBP: ffff8880854df6a8 R08: ffff8880a8e1e100 R09: ffffed1010a9bec4 R10: ffffed1010a9bec3 R11: 0000000000000003 R12: 0000000000000000 R13: ffff8880864946e4 R14: 000000000002e3c0 R15: ffff8880a05a8500 FS: 0000000001b55880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000040 CR3: 000000008dc59000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400