What’s Vulnerable › Vulnerabilities

CVE-2023-53729: soc: qcom: qmi_encdec: Restrict string length in decode

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-22 · updated 2026-10-28

Description

In the Linux kernel, the following vulnerability has been resolved: soc: qcom: qmi_encdec: Restrict string length in decode The QMI TLV value for strings in a lot of qmi element info structures account for null terminated strings with MAX_LEN + 1. If a string is actually MAX_LEN + 1 length, this will cause an out of bounds access when the NULL character is appended in decoding.

Affected products

• Linux kernel: 4.16 — fixed in 6.6

How to fix

Upgrade to a fixed version: Linux kernel 6.6. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/22ee7c9c7f381be178b4457bc54530002e08e938
• https://git.kernel.org/stable/c/2ccab9f82772ead618689d17dbc6950d6bd1e741
• https://git.kernel.org/stable/c/64c5e916fabe5ef7bef0210b8a59fa8941ee1b8e
• https://git.kernel.org/stable/c/6b58859e7c4ac357517a59f0801e8ce1b58a8ee2
• https://git.kernel.org/stable/c/8d207400fd6b79c92aeb2f33bb79f62dff904ea2
• https://git.kernel.org/stable/c/b2f39b813d1eed4a522428d1e6acd7dfe9b81579
• https://git.kernel.org/stable/c/f6250ecb7fbb934b89539e7e2ba6c1d8555c0975

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