description: An off-by-one read/write issue was found in the SDHCI device of QEMU. It occurs when reading/writing the Buffer Data Port Register in sdhci_read_dataport and sdhci_write_dataport, respectively, if data_count == block_size. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
problem types: CWE-193
affected:
{
vendor: n/a
product: QEMU
versions:
version: Affected: up to latest v7.1.0-rc4, status: affected
}