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
kobject: 'loop4' (00000000fefc5756): kobject_uevent_env
CPU: 1 PID: 32606 Comm: syz-executor.0 Not tainted 4.19.62 #36
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'loop4' (00000000fefc5756): fill_kobj_path: path = '/devices/virtual/block/loop4'
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:ffff8880578576a0 EFLAGS: 00010007
RAX: dffffc0000000000 RBX: ffff8880a83eb740 RCX: ffffc90005e6f000
RDX: 0000000000000005 RSI: ffffffff8676289b RDI: 000000000000002c
RBP: ffff8880578576d8 R08: ffff888098684280 R09: ffffed101507d794
R10: ffffed101507d793 R11: ffff8880a83ebc9b R12: 0000000000000000
R13: ffff8880a83ebc5c R14: 000000000002e8c0 R15: ffff888091784600
FS:  00007f40309aa700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30b22000 CR3: 000000007bf8f000 CR4: 00000000001406e0
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+0x2978/0x2f90 net/rds/send.c:1367
 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: 0033:0x459829
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:00007f40309a9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459829
RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f40309aa6d4
R13: 00000000004c7796 R14: 00000000004dced8 R15: 00000000ffffffff
Modules linked in:
---[ end trace 9e9ad86a04b70bee ]---
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:ffff8880578576a0 EFLAGS: 00010007
RAX: dffffc0000000000 RBX: ffff8880a83eb740 RCX: ffffc90005e6f000
RDX: 0000000000000005 RSI: ffffffff8676289b RDI: 000000000000002c
RBP: ffff8880578576d8 R08: ffff888098684280 R09: ffffed101507d794
R10: ffffed101507d793 R11: ffff8880a83ebc9b R12: 0000000000000000
R13: ffff8880a83ebc5c R14: 000000000002e8c0 R15: ffff888091784600
FS:  00007f40309aa700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30b22000 CR3: 000000007bf8f000 CR4: 00000000001406e0