CVE-2025-38200

i40e: fix MMIO write access to an invalid page in i40e_clear_hw

MEDIUM
5.5
CVSS Score
Published: July 4, 2025 at 01:37 PM UTC
Updated: June 17, 2026 at 09:16 AM UTC
2 products affected across 2 vendorsLinux KernelDebian Linux

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: i40e: fix MMIO write access to an invalid page in i40e_clear_hw When the device sends a specific input, an integer underflow can occur, leading to MMIO write access to an invalid page. Prevent the integer underflow by changing the type of related variables.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.12 ≤ v < 5.10.2393.12 ≤ v < 5.15.1863.12 ≤ v < 5.4.2953.12 ≤ v < 6.1.1423.12 ≤ v < 6.12.353.12 ≤ v < 6.15.43.12 ≤ v < 6.163.12 ≤ v < 6.6.955.11 ≤ v < 5.15.1865.16 ≤ v < 6.1.1425.5 ≤ v < 5.10.2396.13 ≤ v < 6.15.46.2 ≤ v < 6.6.956.7 ≤ v < 6.12.351bff652941c4d94f97610c9a30473aad6f5b2fff3.12
Vendor states this is fixed in 015bac5daca978448f2671478c553ce1f300c21e (fixed)
Vendor states this is fixed in 2a1f4f2e36442a9bdf771acf6ee86f3cf876e5ca (fixed)
Vendor states this is fixed in 3502dd42f178dae9d54696013386bb52b4f2e655 (fixed)
Vendor states this is fixed in 5e75c9082987479e647c75ec8fdf18fa68263c42 (fixed)
Vendor states this is fixed in 872607632c658d3739e4e7889e4f3c419ae2c193 (fixed)
Vendor states this is fixed in 8cde755f56163281ec2c46b4ae8b61f532758a6f (fixed)
Vendor states this is fixed in d88a1e8f024ba26e19350958fecbf771a9960352 (fixed)
Vendor states this is fixed in fecb2fc3fc10c95724407cc45ea35af4a65cdde2 (fixed)
Vendor states this is fixed in 3.12 (unaffected)
Vendor states this is fixed in 5.10.239 (unaffected)
Vendor states this is fixed in 5.15.186 (unaffected)
Vendor states this is fixed in 5.4.295 (unaffected)
Vendor states this is fixed in 6.1.142 (unaffected)
Vendor states this is fixed in 6.12.35 (unaffected)
Vendor states this is fixed in 6.15.4 (unaffected)
Vendor states this is fixed in 6.16 (unaffected)
Vendor states this is fixed in 6.6.95 (unaffected)

References (10)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/015bac5daca978448f2671478c553ce1f300c21e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/2a1f4f2e36442a9bdf771acf6ee86f3cf876e5ca
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3502dd42f178dae9d54696013386bb52b4f2e655
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/5e75c9082987479e647c75ec8fdf18fa68263c42
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/872607632c658d3739e4e7889e4f3c419ae2c193
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8cde755f56163281ec2c46b4ae8b61f532758a6f
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d88a1e8f024ba26e19350958fecbf771a9960352
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/fecb2fc3fc10c95724407cc45ea35af4a65cdde2

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-191

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