What’s Vulnerable › Vulnerabilities

CVE-2024-56557: iio: adc: ad7923: Fix buffer overflow for tx_buf and ring_xfer

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-12-27 · updated 2026-08-04
• Weakness: CWE-120

Description

In the Linux kernel, the following vulnerability has been resolved: iio: adc: ad7923: Fix buffer overflow for tx_buf and ring_xfer The AD7923 was updated to support devices with 8 channels, but the size of tx_buf and ring_xfer was not increased accordingly, leading to a potential buffer overflow in ad7923_update_scan_mode().

Affected products

• Linux kernel: from 5.6 before 6.1.120; from 6.2 before 6.6.64; from 6.7 before 6.12.4 — fixed in 6.1.120, 6.12.4, 6.6.64

How to fix

Upgrade to a fixed version: Linux kernel 6.1.120, 6.12.4, 6.6.64. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/00663d3e000c31d0d49ef86a809f5c107c2d09cd
• https://git.kernel.org/stable/c/218ecc35949129171ca39bcc0d407c8dc4cd0bbc
• https://git.kernel.org/stable/c/3a4187ec454e19903fd15f6e1825a4b84e59a4cd
• https://git.kernel.org/stable/c/6e4d236d9c4b38571c394d3ab6e85dfb71c33ed3
• https://git.kernel.org/stable/c/e5cac32721997cb8bcb208a29f4598b3faf46338
• https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

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