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: 13059 Comm: syz-executor.1 Not tainted 4.19.55 #27 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:108 Code: c1 ea 03 80 3c 02 00 0f 85 6e 02 00 00 4c 8b a3 b8 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:ffff88805fdc76c0 EFLAGS: 00010007 RAX: dffffc0000000000 RBX: ffff88807ec821c0 RCX: ffffc90008080000 RDX: 0000000000000005 RSI: ffffffff867281db RDI: 000000000000002c RBP: ffff88805fdc76f8 R08: ffff8880982801c0 R09: ffffed100fd904e4 R10: ffffed100fd904e3 R11: ffff88807ec8271b R12: 0000000000000000 R13: ffff88807ec826dc R14: 000000000002e440 R15: ffff888089480000 FS: 00007f7f134b3700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2fb21000 CR3: 0000000094e13000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rds_recv_rcvbuf_delta net/rds/recv.c:384 [inline] rds_recv_incoming+0x789/0x11c0 net/rds/recv.c:384 rds_loop_xmit+0xf3/0x2a0 net/rds/loop.c:96 rds_send_xmit+0x10ff/0x2540 net/rds/send.c:355 rds_sendmsg+0x2a24/0x2f50 net/rds/send.c:1365 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4592c9 Code: fd b7 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f7f134b2c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004592c9 RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000005 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7f134b36d4 R13: 00000000004c7021 R14: 00000000004dc1a0 R15: 00000000ffffffff Modules linked in: ---[ end trace f7bc62bcbd68e3a0 ]--- RIP: 0010:rds_recv_rcvbuf_delta.part.0+0x14a/0x3f0 net/rds/recv.c:108 Code: c1 ea 03 80 3c 02 00 0f 85 6e 02 00 00 4c 8b a3 b8 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:ffff88805fdc76c0 EFLAGS: 00010007 RAX: dffffc0000000000 RBX: ffff88807ec821c0 RCX: ffffc90008080000 RDX: 0000000000000005 RSI: ffffffff867281db RDI: 000000000000002c RBP: ffff88805fdc76f8 R08: ffff8880982801c0 R09: ffffed100fd904e4 R10: ffffed100fd904e3 R11: ffff88807ec8271b R12: 0000000000000000 R13: ffff88807ec826dc R14: 000000000002e440 R15: ffff888089480000 FS: 00007f7f134b3700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2fb21000 CR3: 0000000094e13000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400