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A heap-based buffer overflow was found in the SDHCI device emulation of QEMU. The bug is triggered when both `s->data_count` and the size of `s->fifo_buffer` are set to 0x200, leading to an out-of-bound access. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition. Reference: https://nvd.nist.gov/vuln/detail/CVE-2024-3447 Upstream patch: https://gitlab.com/qemu-project/qemu/-/commit/2429cb7a9f460b544f4b07bcf02dbdedfc4dcb39 (From OE-Core rev: 01d7ac9244364b7f89cd2f99fff11c2417bcad03) Signed-off-by: Yogita Urade <yogita.urade@windriver.com> Signed-off-by: Steve Sakoman <steve@sakoman.com>