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

mediumCVSS 5.5CVE-2024-56557

CSIRTS triage

vendor: Linuxproduct: Linux KernelMemory corruption
What
A buffer overflow vulnerability in the ad7923 ADC driver's transmit buffer and ring transfer handling.
Who is affected
Systems running affected Linux kernel versions with Analog Devices ad7923 ADC devices.
Urgency
Medium priority; not actively exploited but can cause kernel memory corruption and potential code execution.
Action
Update to a patched Linux kernel version that properly bounds the tx_buf and ring_xfer buffers.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
medium — CVSS 5.5
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-56557

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2024-56557coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for iio

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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