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PatchSiren cyber security CVE debrief

CVE-2025-71064 Linux CVE debrief

The Linux kernel was vulnerable to an issue where the hdev->htqp was allocated using hdev->num_tqps, while kinfo->tqp was allocated using kinfo->num_tqps. However, kinfo->num_tqps was set to the minimum of new_tqps and hdev->num_tqps, potentially causing some hdev->htqp[i] to remain uninitialized. This issue has been resolved by allocating hdev->htqp and kinfo->tqp using hdev->num_tqps, ensuring consistent lengths and proper initialization.

Vendor
Linux
Product
Unknown
CVSS
Unknown
CISA KEV
Not listed in stored evidence
Original CVE published
2026-01-13
Original CVE updated
2026-07-14
Advisory published
2026-01-13
Advisory updated
2026-07-14

Who should care

Users of Linux kernel versions affected by this vulnerability should apply patches to prevent potential issues. This includes operators, platform administrators, vulnerability management teams, and security teams who need to review and update Linux kernel versions.

Technical summary

The Linux kernel vulnerability, CVE-2025-71064, involves inconsistent allocation of hdev->htqp and kinfo->tqp. The issue arises because kinfo->num_tqps is set to the minimum of new_tqps and hdev->num_tqps, potentially causing some hdev->htqp[i] to remain uninitialized. The patch resolves this by allocating both using hdev->num_tqps, ensuring consistent lengths and proper initialization. Affected Linux kernel users should apply patches and review kernel versions to prevent potential issues. This includes operators, administrators, and security teams verifying and updating kernel versions, monitoring for related vulnerabilities, and reviewing compensating controls for exposed systems.

Defensive priority

Medium

Recommended defensive actions

  • Apply patches provided by the Linux kernel maintainers.
  • Review and update Linux kernel versions to ensure consistency in hdev->htqp and kinfo->tqp allocation.
  • Monitor Linux kernel updates for potential related vulnerabilities.
  • Review compensating controls for exposed systems while remediation is scheduled and verified.
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review.
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented.
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record was published on 2026-01-13T16:16:05.740Z and last modified on 2026-07-14T13:18:01.570Z. The NVD entry is currently Deferred. The Linux kernel vulnerability affects hdev->htqp and kinfo->tqp allocation. Evidence is limited, and defenders should verify affected scope and vendor guidance.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T16:16:05.740Z and has not been modified since then. The NVD entry is currently Deferred.