Bug 2395418 (CVE-2023-53238)

Summary: CVE-2023-53238 kernel: phy: hisilicon: Fix an out of bounds check in hisi_inno_phy_probe()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2025-09-15 15:12:45 UTC 
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
Comment 1 Jon Moroney 2025-09-15 17:08:03 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091516-CVE-2023-53238-f8a7@gregkh/T