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igvm: fix off by one bug in memmap entry count checking

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Fixes: c1d466d267 ("backends/igvm: Add IGVM loader and configuration")
Reviewed-by: Luigi Leonardi <leonardi@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-ID: <20251029105555.2492276-3-kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2025-10-29 11:55:52 +01:00
parent 451e7b7aa7
commit dd020b4e6b
1 changed files with 1 additions and 1 deletions
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2
backends/igvm.c
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@ -567,7 +567,7 @@ static int qigvm_directive_memory_map(QIgvm *ctx, const uint8_t *header_data,
retval = ctx->cgsc->get_mem_map_entry(entry, &cgmm_entry, errp);
while (retval == 0) {
if (entry > max_entry_count) {
if (entry >= max_entry_count) {
error_setg(
errp,
"IGVM: guest memory map size exceeds parameter area defined in IGVM file");