ALSA: dice: fix buffer overflow in detect_stream_formats()
In the Linux kernel, the following vulnerability has been resolved: ALSA: dice: fix buffer overflow in detect_stream_formats() The function detect_stream_formats() reads the stream_count value directly from a FireWire device without validating it. This can lead to out-of-bounds writes when a malicious device provides a stream_count value greater than MAX_STREAMS. Fix by applying the same validation to both TX and RX stream counts in detect_stream_formats().
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: ALSA: dice: fix buffer overflow in detect_stream_formats() The function detect_stream_formats() reads the stream_count value directly from a FireWire device without validating it. This can lead to out-of-bounds writes when a malicious device provides a stream_count value greater than MAX_STREAMS. Fix by applying the same validation to both TX and RX stream counts in detect_stream_formats().
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/1e1b3207a53e50d5a66289fffc1f7d52cd9c50f9
- https://git.kernel.org/stable/c/324f3e03e8a85931ce0880654e3c3eb38b0f0bba
- https://git.kernel.org/stable/c/3cf854cec0eb371da47ff5fe56eab189d7fa623a
- https://git.kernel.org/stable/c/4a6ab0f6cc9bdfdfecbf257a46ff4275bd965af4
- https://git.kernel.org/stable/c/932aa1e80b022419cf9710e970739b7a8794f27c
- https://git.kernel.org/stable/c/c0a1fe1902ad23e6d48e0f68be1258ccf7a163e6
- https://git.kernel.org/stable/c/d6280a5b00cad37d9a9a875849e5bf7ed2fe4950
- https://git.kernel.org/stable/c/dea3ed2c16f99f46f97b1a090bf80ecdd6972ce0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68346.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-68346