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efi_loader: check parameter in InstallConfigurationTable
Check that parameter guid is not NULL. This avoids a possible NULL pointer exception. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
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@ -1333,6 +1333,9 @@ efi_status_t efi_install_configuration_table(const efi_guid_t *guid, void *table
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{
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int i;
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if (!guid)
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return EFI_INVALID_PARAMETER;
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/* Check for guid override */
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for (i = 0; i < systab.nr_tables; i++) {
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if (!guidcmp(guid, &efi_conf_table[i].guid)) {
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