# CVE-2026-43005: linux: In the Linux kernel, the following vulnerability has been resolved:  hwmon: (tps53679) Fix array access with zero-len...

CVE-2026-43005 is fixed in linux on 1 platform by DEBIAN-CVE-2026-43005 (version 6.19.12-1), released May 15, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-43005
- Priority: High
- CVSS: 7.1 (high)
- EPSS: 0.0012
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 1, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  hwmon: (tps53679) Fix array access with zero-length block read  i2c_smbus_read_block_data() can return 0, indicating a zero-length read. When this happens, tps53679_identify_chip() accesses buf[ret - 1] which is buf[-1], reading one byte before the buffer on the stack.  Fix by changing the check from "ret < 0" to "ret <= 0", treating a zero-length read as an error (-EIO), which prevents the out-of-bounds array access.  Also fix a typo in the adjacent comment: "if present" instead of duplicate "if".

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 6.19.12-1 | [DEBIAN-CVE-2026-43005](https://patchblox.com/security/data/fix/linux/debian-cve-2026-43005.md) | May 15, 2026 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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