CVE-2025-38275
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.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 5.15.93 | 5.16 |
| linux / linux_kernel | 6.1 | 6.1.142 |
| linux / linux_kernel | 6.2 | 6.6.94 |
| linux / linux_kernel | 6.7 | 6.12.34 |
| linux / linux_kernel | 6.13 | 6.15.3 |
| debian / debian_linux | 11.0 | 11.0.x |
- 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
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
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