Commit 9c2644948c for qemu.org

commit 9c2644948c71db61a04f22398cde72224a98267a
Author: Zhao Liu <zhao1.liu@intel.com>
Date:   Sun Nov 10 23:09:00 2024 +0800

    hw/core/machine-smp: Initialize caches_bitmap before reading

    The caches_bitmap is defined in machine_parse_smp_cache(), but it was
    not initialized.

    Initialize caches_bitmap by clearing all its bits to zero.

    Resolves: Coverity CID 1565389
    Fixes: 4e88e7e3403d ("qapi/qom: Define cache enumeration and properties for machine")
    Reported-by: Peter Maydell <peter.maydell@linaro.org>
    Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
    Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
    Link: https://lore.kernel.org/r/20241110150901.130647-2-zhao1.liu@intel.com
    Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/hw/core/machine-smp.c b/hw/core/machine-smp.c
index 640b2114b4..b87637c78f 100644
--- a/hw/core/machine-smp.c
+++ b/hw/core/machine-smp.c
@@ -290,6 +290,7 @@ bool machine_parse_smp_cache(MachineState *ms,
     const SmpCachePropertiesList *node;
     DECLARE_BITMAP(caches_bitmap, CACHE_LEVEL_AND_TYPE__MAX);

+    bitmap_zero(caches_bitmap, CACHE_LEVEL_AND_TYPE__MAX);
     for (node = caches; node; node = node->next) {
         /* Prohibit users from repeating settings. */
         if (test_bit(node->value->cache, caches_bitmap)) {