===================================================== BUG: KMSAN: uninit-value in __htab_map_lookup_elem kernel/bpf/hashtab.c:691 [inline] BUG: KMSAN: uninit-value in htab_lru_percpu_map_lookup_elem+0x39a/0x580 kernel/bpf/hashtab.c:2326 __htab_map_lookup_elem kernel/bpf/hashtab.c:691 [inline] htab_lru_percpu_map_lookup_elem+0x39a/0x580 kernel/bpf/hashtab.c:2326 ____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_run32+0xb2/0xe0 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_run5+0x16f/0x350 kernel/trace/bpf_trace.c:2423 __bpf_trace_signal_generate+0x45/0x60 include/trace/events/signal.h:50 trace_signal_generate include/trace/events/signal.h:50 [inline] __send_signal_locked+0x1157/0x1200 kernel/signal.c:1187 send_signal_locked+0x761/0xa50 kernel/signal.c:1248 do_send_sig_info+0x19b/0x240 kernel/signal.c:1301 do_send_specific+0x21e/0x350 kernel/signal.c:3994 do_tkill kernel/signal.c:4015 [inline] __do_sys_tgkill kernel/signal.c:4034 [inline] __se_sys_tgkill kernel/signal.c:4028 [inline] __x64_sys_tgkill+0x304/0x3d0 kernel/signal.c:4028 x64_sys_call+0x2c5d/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:235 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_run32+0x43/0xe0 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_run5+0x16f/0x350 kernel/trace/bpf_trace.c:2423 CPU: 0 PID: 5015 Comm: syz-fuzzer Not tainted 6.9.0-rc5-syzkaller-00296-g5eb4573ea63d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 =====================================================