What’s Vulnerable › Vulnerabilities

CVE-2026-98179: drm/amdgpu: fix rmmio iounmap skipped on device removal

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-06 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix rmmio iounmap skipped on device removal amdgpu_pci_remove() calls drm_dev_unplug() before fini_sw(), so drm_dev_enter() is already false there and the iounmap() guarded by it is skipped. This .remove path runs on both hot-unplug and plain rmmod, so the register BAR ioremap mapping leaks one instance per unload. Unmap rmmio unconditionally (guard only on non-NULL) and drop the now unused idx. (cherry picked from commit dd6f86a97260e5207d3329ad03aa89fdad61b1e6)

Affected products

• Linux kernel: 5.17 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/5155002b03b24ba3ef91c5c313b8cf0171b24904
• https://git.kernel.org/stable/c/a645584c3ccc493ee835f77155829442bd7578c3
• https://git.kernel.org/stable/c/cd55dde2b63789a3dafe982c89844f537501d096
• https://git.kernel.org/stable/c/e81502d6791df9ecd003bfb2ca44f0d1f1b38439

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