CVE-2024-26977: pci_iounmap(): Fix MMIO mapping leak
In the Linux kernel, the following vulnerability has been resolved:
pciiounmap(): Fix MMIO mapping leak
The #ifdef ARCHHASGENERICIOPORTMAP accidentally also guards iounmap(), which means MMIO mappings are leaked.
Move the guard so we call iounmap() for MMIO mappings.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2024-26977?
The severity of CVE-2024-26977 is classified as moderate due to the potential for MMIO mapping leaks.
How do I fix CVE-2024-26977?
To fix CVE-2024-26977, update to the fixed versions of the Linux kernel, such as 5.10.223-1, 5.10.226-1, 6.1.123-1, 6.1.119-1, 6.12.11-1, or 6.12.12-1.
Which software is affected by CVE-2024-26977?
CVE-2024-26977 affects various versions of the Linux kernel, specifically those associated with Debian.
What does CVE-2024-26977 affect in the Linux kernel?
CVE-2024-26977 affects the handling of MMIO (Memory-Mapped Input/Output) mappings leading to potential leaks.
Is there a specific patch for CVE-2024-26977?
Yes, a patch that resolves the MMIO mapping leak in CVE-2024-26977 has been implemented in the newer versions of the Linux kernel.