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BUG: KMSAN: uninit-value in ___bpf_prog_run+0xa4d1/0xe0f0 kernel/bpf/core.c:2072
 ___bpf_prog_run+0xa4d1/0xe0f0 kernel/bpf/core.c:2072
 __bpf_prog_run512+0xb5/0xe0 kernel/bpf/core.c:2238
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 bpf_prog_run_pin_on_cpu include/linux/filter.h:681 [inline]
 bpf_prog_run_clear_cb include/linux/filter.h:815 [inline]
 run_filter+0x15c/0x410 net/packet/af_packet.c:2088
 packet_rcv+0x567/0x1f20 net/packet/af_packet.c:2161
 dev_queue_xmit_nit+0x114b/0x12a0 net/core/dev.c:2296
 xmit_one net/core/dev.c:3527 [inline]
 dev_hard_start_xmit+0x17d/0xa20 net/core/dev.c:3547
 __dev_queue_xmit+0x348d/0x52c0 net/core/dev.c:4335
 dev_queue_xmit include/linux/netdevice.h:3091 [inline]
 __netlink_deliver_tap_skb net/netlink/af_netlink.c:307 [inline]
 __netlink_deliver_tap+0x84c/0xc90 net/netlink/af_netlink.c:325
 netlink_deliver_tap net/netlink/af_netlink.c:338 [inline]
 netlink_deliver_tap_kernel net/netlink/af_netlink.c:347 [inline]
 netlink_unicast_kernel net/netlink/af_netlink.c:1334 [inline]
 netlink_unicast+0x10fc/0x1260 net/netlink/af_netlink.c:1361
 netlink_sendmsg+0x10df/0x11f0 net/netlink/af_netlink.c:1905
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x30f/0x380 net/socket.c:745
 __sys_sendto+0x685/0x830 net/socket.c:2191
 __do_compat_sys_socketcall net/compat.c:475 [inline]
 __se_compat_sys_socketcall+0xceb/0x1a20 net/compat.c:423
 __ia32_compat_sys_socketcall+0x6b/0xa0 net/compat.c:423
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xba/0x120 arch/x86/entry/common.c:321
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:346
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:384
 entry_SYSENTER_compat_after_hwframe+0x7f/0x89

Uninit was stored to memory at:
 ___bpf_prog_run+0x9098/0xe0f0
 __bpf_prog_run512+0xb5/0xe0 kernel/bpf/core.c:2238
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 bpf_prog_run_pin_on_cpu include/linux/filter.h:681 [inline]
 bpf_prog_run_clear_cb include/linux/filter.h:815 [inline]
 run_filter+0x15c/0x410 net/packet/af_packet.c:2088
 packet_rcv+0x567/0x1f20 net/packet/af_packet.c:2161
 dev_queue_xmit_nit+0x114b/0x12a0 net/core/dev.c:2296
 xmit_one net/core/dev.c:3527 [inline]
 dev_hard_start_xmit+0x17d/0xa20 net/core/dev.c:3547
 __dev_queue_xmit+0x348d/0x52c0 net/core/dev.c:4335
 dev_queue_xmit include/linux/netdevice.h:3091 [inline]
 __netlink_deliver_tap_skb net/netlink/af_netlink.c:307 [inline]
 __netlink_deliver_tap+0x84c/0xc90 net/netlink/af_netlink.c:325
 netlink_deliver_tap net/netlink/af_netlink.c:338 [inline]
 netlink_deliver_tap_kernel net/netlink/af_netlink.c:347 [inline]
 netlink_unicast_kernel net/netlink/af_netlink.c:1334 [inline]
 netlink_unicast+0x10fc/0x1260 net/netlink/af_netlink.c:1361
 netlink_sendmsg+0x10df/0x11f0 net/netlink/af_netlink.c:1905
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x30f/0x380 net/socket.c:745
 __sys_sendto+0x685/0x830 net/socket.c:2191
 __do_compat_sys_socketcall net/compat.c:475 [inline]
 __se_compat_sys_socketcall+0xceb/0x1a20 net/compat.c:423
 __ia32_compat_sys_socketcall+0x6b/0xa0 net/compat.c:423
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xba/0x120 arch/x86/entry/common.c:321
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:346
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:384
 entry_SYSENTER_compat_after_hwframe+0x7f/0x89

Local variable stack created at:
 __bpf_prog_run512+0x45/0xe0 kernel/bpf/core.c:2238
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 bpf_prog_run_pin_on_cpu include/linux/filter.h:681 [inline]
 bpf_prog_run_clear_cb include/linux/filter.h:815 [inline]
 run_filter+0x15c/0x410 net/packet/af_packet.c:2088

CPU: 1 PID: 8737 Comm: syz-executor.2 Tainted: G        W          6.9.0-rc2-syzkaller-00080-gc85af715cac0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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