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CVE-2024-56557

iio: adc: ad7923: Fix buffer overflow for tx_buf and ring_xfer

HIGH
7.8
CVSS Score
Published: December 27, 2024 at 02:23 PM UTC
Updated: August 5, 2026 at 12:05 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
5.6 ≤ v < 5.15.2035.6 ≤ v < 6.1.1205.6 ≤ v < 6.12.45.6 ≤ v < 6.135.6 ≤ v < 6.6.646.2 ≤ v < 6.6.646.7 ≤ v < 6.12.45.6851644a60d200c9a294de5a5594004bcf13d34c7
Vendor states this is fixed in 00663d3e000c31d0d49ef86a809f5c107c2d09cd (fixed)
Vendor states this is fixed in 218ecc35949129171ca39bcc0d407c8dc4cd0bbc (fixed)
Vendor states this is fixed in 3a4187ec454e19903fd15f6e1825a4b84e59a4cd (fixed)
Vendor states this is fixed in 6e4d236d9c4b38571c394d3ab6e85dfb71c33ed3 (fixed)
Vendor states this is fixed in e5cac32721997cb8bcb208a29f4598b3faf46338 (fixed)
Vendor states this is fixed in 5.15.203 (unaffected)
Vendor states this is fixed in 5.6 (unaffected)
Vendor states this is fixed in 6.1.120 (unaffected)
Vendor states this is fixed in 6.12.4 (unaffected)
Vendor states this is fixed in 6.13 (unaffected)
Vendor states this is fixed in 6.6.64 (unaffected)

References (6)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/00663d3e000c31d0d49ef86a809f5c107c2d09cd
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/218ecc35949129171ca39bcc0d407c8dc4cd0bbc
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3a4187ec454e19903fd15f6e1825a4b84e59a4cd
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e5cac32721997cb8bcb208a29f4598b3faf46338
Source: cverecord
https://git.kernel.org/stable/c/6e4d236d9c4b38571c394d3ab6e85dfb71c33ed3
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-120

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