------------[ cut here ]------------
refcount_t: addition on 0; use-after-free.
WARNING: CPU: 1 PID: 45 at lib/refcount.c:25 refcount_warn_saturate+0x169/0x1e0 lib/refcount.c:25
Modules linked in:
CPU: 1 PID: 45 Comm: kworker/u4:2 Not tainted 5.18.0-rc5-syzkaller-00207-g379c72654524 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: krdsd rds_connect_worker
RIP: 0010:refcount_warn_saturate+0x169/0x1e0 lib/refcount.c:25
Code: 09 31 ff 89 de e8 87 c1 81 fd 84 db 0f 85 36 ff ff ff e8 9a bd 81 fd 48 c7 c7 80 ec 26 8a c6 05 a5 ee ac 09 01 e8 af fe 30 05 <0f> 0b e9 17 ff ff ff e8 7b bd 81 fd 0f b6 1d 8a ee ac 09 31 ff 89
RSP: 0018:ffffc90000b67b80 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888016859d80 RSI: ffffffff81601ae8 RDI: fffff5200016cf62
RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815fc4be R11: 0000000000000000 R12: ffff888077840000
R13: ffff888015c5a000 R14: ffff88807784014c R15: ffff88807de49d00
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007febb33bc000 CR3: 000000007f046000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __refcount_add include/linux/refcount.h:199 [inline]
 __refcount_inc include/linux/refcount.h:250 [inline]
 refcount_inc include/linux/refcount.h:267 [inline]
 get_net include/net/net_namespace.h:248 [inline]
 get_net_track include/net/net_namespace.h:334 [inline]
 rds_tcp_tune+0x5a0/0x5f0 net/rds/tcp.c:503
 rds_tcp_conn_path_connect+0x489/0x880 net/rds/tcp_connect.c:127
 rds_connect_worker+0x1a5/0x2c0 net/rds/threads.c:176
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>