=====================================================
BUG: KMSAN: uninit-value in rht_ptr_rcu include/linux/rhashtable.h:376 [inline]
BUG: KMSAN: uninit-value in __rhashtable_lookup include/linux/rhashtable.h:607 [inline]
BUG: KMSAN: uninit-value in rhashtable_lookup include/linux/rhashtable.h:646 [inline]
BUG: KMSAN: uninit-value in rhashtable_lookup_fast include/linux/rhashtable.h:672 [inline]
BUG: KMSAN: uninit-value in tcf_ct_flow_table_get+0x611/0x2260 net/sched/act_ct.c:329
 rht_ptr_rcu include/linux/rhashtable.h:376 [inline]
 __rhashtable_lookup include/linux/rhashtable.h:607 [inline]
 rhashtable_lookup include/linux/rhashtable.h:646 [inline]
 rhashtable_lookup_fast include/linux/rhashtable.h:672 [inline]
 tcf_ct_flow_table_get+0x611/0x2260 net/sched/act_ct.c:329
 tcf_ct_init+0xa67/0x2890 net/sched/act_ct.c:1408
 tcf_action_init_1+0x6cc/0xb30 net/sched/act_api.c:1425
 tcf_action_init+0x458/0xf00 net/sched/act_api.c:1488
 tcf_action_add net/sched/act_api.c:2061 [inline]
 tc_ctl_action+0x4be/0x19d0 net/sched/act_api.c:2118
 rtnetlink_rcv_msg+0x12fc/0x1410 net/core/rtnetlink.c:6647
 netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2550
 rtnetlink_rcv+0x34/0x40 net/core/rtnetlink.c:6665
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0xf52/0x1260 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x10da/0x11e0 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x30f/0x380 net/socket.c:745
 ____sys_sendmsg+0x877/0xb60 net/socket.c:2597
 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2651
 __sys_sendmsg+0x225/0x3c0 net/socket.c:2680
 __compat_sys_sendmsg net/compat.c:346 [inline]
 __do_compat_sys_sendmsg net/compat.c:353 [inline]
 __se_compat_sys_sendmsg net/compat.c:350 [inline]
 __ia32_compat_sys_sendmsg+0x9d/0xe0 net/compat.c:350
 ia32_sys_call+0x3aac/0x40d0 arch/x86/include/generated/asm/syscalls_32.h:371
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Local variable key created at:
 tcf_ct_flow_table_get+0x4a/0x2260 net/sched/act_ct.c:324
 tcf_ct_init+0xa67/0x2890 net/sched/act_ct.c:1408

CPU: 1 UID: 0 PID: 7486 Comm: syz.1.608 Not tainted 6.10.0-syzkaller-12708-g2f8c4f506285 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
=====================================================