=====================================================
BUG: KMSAN: uninit-value in __dev_map_hash_lookup_elem kernel/bpf/devmap.c:270 [inline]
BUG: KMSAN: uninit-value in dev_map_hash_lookup_elem+0x116/0x2e0 kernel/bpf/devmap.c:803
 __dev_map_hash_lookup_elem kernel/bpf/devmap.c:270 [inline]
 dev_map_hash_lookup_elem+0x116/0x2e0 kernel/bpf/devmap.c:803
 ____bpf_map_lookup_elem kernel/bpf/helpers.c:42 [inline]
 bpf_map_lookup_elem+0x5c/0x80 kernel/bpf/helpers.c:38
 ___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997
 __bpf_prog_run64+0xb5/0xe0 kernel/bpf/core.c:2236
 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_trace_run kernel/trace/bpf_trace.c:2381 [inline]
 bpf_trace_run4+0x150/0x340 kernel/trace/bpf_trace.c:2422
 __bpf_trace_sched_switch+0x37/0x50 include/trace/events/sched.h:222
 __traceiter_sched_switch+0xb7/0x150 include/trace/events/sched.h:222
 trace_sched_switch include/trace/events/sched.h:222 [inline]
 __schedule+0x2eca/0x6bc0 kernel/sched/core.c:6743
 preempt_schedule_common kernel/sched/core.c:6925 [inline]
 __cond_resched+0x49/0xc0 kernel/sched/core.c:8590
 _cond_resched include/linux/sched.h:1989 [inline]
 do_recvmmsg+0x9fc/0xfd0 net/socket.c:2973
 __sys_recvmmsg net/socket.c:3018 [inline]
 __do_sys_recvmmsg net/socket.c:3041 [inline]
 __se_sys_recvmmsg net/socket.c:3034 [inline]
 __x64_sys_recvmmsg+0x397/0x490 net/socket.c:3034
 x64_sys_call+0xf6c/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:300
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Local variable stack created at:
 __bpf_prog_run64+0x45/0xe0 kernel/bpf/core.c:2236
 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_trace_run kernel/trace/bpf_trace.c:2381 [inline]
 bpf_trace_run4+0x150/0x340 kernel/trace/bpf_trace.c:2422

CPU: 1 PID: 12145 Comm: syz-executor.2 Not tainted 6.9.0-syzkaller-02707-g614da38e2f7a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
=====================================================