CVE-2025-38200: i40e: fix MMIO write access to an invalid page in i40e_clear_hw
i40e: fix MMIO write access to an invalid page in i40eclearhw
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.113-1Fixed in 7.2.12-1Fixed in 7.2.13-1 - Compensating control
In the i40e driver’s i40e_clear_hw function, change the types of the related variables to prevent the integer underflow that can cause MMIO writes to an invalid page.
Event History
Frequently Asked Questions
What is the severity of CVE-2025-38200?
The severity of CVE-2025-38200 is considered high due to the potential for integer underflows leading to security vulnerabilities in the Linux kernel.
How do I fix CVE-2025-38200?
To fix CVE-2025-38200, update your Linux kernel to the latest patched version provided by your distribution.
What systems are affected by CVE-2025-38200?
CVE-2025-38200 affects systems running vulnerable versions of the Linux kernel that utilize the i40e Ethernet driver.
Can CVE-2025-38200 be exploited remotely?
Exploitation of CVE-2025-38200 could potentially allow an attacker to execute unauthorized memory access through specific input to the device.
What is MMIO write access in relation to CVE-2025-38200?
MMIO write access in CVE-2025-38200 refers to memory-mapped I/O operations that may target invalid memory pages due to the integer underflow.