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: 1 PID: 19596 Comm: syz-executor.0 Not tainted 5.1.0-rc6+ #83 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:ffff88804032f7d0 EFLAGS: 00010007 RAX: dffffc0000000000 RBX: ffff8880a429c840 RCX: ffffc90005df3000 RDX: 0000000000000005 RSI: ffffffff868ebb8b RDI: 000000000000002c RBP: ffff88804032f808 R08: ffff88805ff54200 R09: ffffed1008065ef0 R10: ffffed1008065eef R11: 0000000000000003 R12: 0000000000000000 R13: ffff8880a429cd64 R14: 000000000002e400 R15: ffff8880a0350900 FS: 0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:00000000f5dd4b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007ffd77129858 CR3: 000000003f50a000 CR4: 00000000001406e0 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+0x3017/0x3550 net/rds/send.c:1369 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:661 __sys_sendto+0x262/0x380 net/socket.c:1932 __do_sys_sendto net/socket.c:1944 [inline] __se_sys_sendto net/socket.c:1940 [inline] __ia32_sys_sendto+0xdf/0x1a0 net/socket.c:1940 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x281/0xc98 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7fd8869 Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f5dd40cc EFLAGS: 00000296 ORIG_RAX: 0000000000000171 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000e80 RDX: 0000000000000360 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0a668f4d39c6c694 ]--- 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:ffff88804032f7d0 EFLAGS: 00010007 RAX: dffffc0000000000 RBX: ffff8880a429c840 RCX: ffffc90005df3000 RDX: 0000000000000005 RSI: ffffffff868ebb8b RDI: 000000000000002c RBP: ffff88804032f808 R08: ffff88805ff54200 R09: ffffed1008065ef0 R10: ffffed1008065eef R11: 0000000000000003 R12: 0000000000000000 R13: ffff8880a429cd64 R14: 000000000002e400 R15: ffff8880a0350900 FS: 0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:00000000f5dd4b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007ffd77129858 CR3: 000000003f50a000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400