PT-2026-61372 · Linux+2 · Linux Kernel+2

CVE-2026-64055

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Published

2026-07-19

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Updated

2026-09-07

CVSS v3.1

9.8

Critical

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description An issue exists in the gmac rx() NAPI poll function within the cortina ethernet driver. The function assembles packets in an SKB from a ring buffer. If the ring buffer is completely emptied during a poll cycle, the function exits before the packet is fully assembled, but the fragment counter frag nr is incorrectly reset to zero during the next invocation.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

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Related Identifiers

CVE-2026-64055
USN-8575-1
USN-8575-2
USN-8575-3
USN-8576-1
USN-8576-2
USN-8593-1
USN-8603-1
USN-8610-1
USN-8618-1
USN-8620-1
USN-8620-2
USN-8620-3
USN-8620-4
USN-8663-1
USN-8664-1
USN-8668-1
USN-8728-1
USN-8729-1

Affected Products

Linuxmint
Linux Kernel
Ubuntu