CVE-2025-38275 Information

Jul 12, 2025 cve

Description

In the Linux kernel the following vulnerability has been resolved:

phy: qcom-qmp-usb: Fix an NULL vs IS_ERR() bug

The qmp_usb_iomap() helper function currently returns the raw result of devm_ioremap() for non-exclusive mappings. Since devm_ioremap() may return a NULL pointer and the caller only checks error pointers with IS_ERR() NULL could bypass the check and lead to an invalid dereference.

Fix the issue by checking if devm_ioremap() returns NULL. When it does qmp_usb_iomap() now returns an error pointer via IOMEM_ERR_PTR(-ENOMEM) ensuring safe and consistent error handling.

Reference

https://git.kernel.org/stable/c/0b979a409e40457ca1b5cb48755d1f34eee58805 https://git.kernel.org/stable/c/0c33117f00c8c5363c22676931b22ae5041f7603 https://git.kernel.org/stable/c/127dfb4f1c5a2b622039c5d203f321380ea36665 https://git.kernel.org/stable/c/5072c1749197fc28b27d7efc0d80320d7cac9572 https://git.kernel.org/stable/c/d14402a38c2d868cacb1facaf9be908ca6558e59

CNNVD-202507-1397 (Published: 2025-07-10)

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