CVE-2026-64056In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Make RX SKB per-port The SKB used to assemble packets from fragments in gmac_rx() is static local, but the…
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In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Make RX SKB per-port The SKB used to assemble packets from fragments in gmac_rx() is static local, but the Gemini has two ethernet ports, meaning there can be races between the ports on a bad day if a device is using both. Make the RX SKB a per-port variable and carry it over between invocations in the port struct instead. Zero the pointer once we call napi_gro_frags(), on error (after calling napi_free_frags()) or if the port is stopped. Zero it in some place where not strictly necessary just to emphasize what is going on. This was found by Sashiko during normal patch review.
- CVSS
- 9.8 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Sep 2, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 4.16 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.142; from 6.7 before 6.12.92; from 6.13 before 6.18.34; from 6.19 before 7.0.11; 7.1; and 2 more ranges | NVD |
References
- https://git.kernel.org/stable/c/06937db21ee311ed07eba47954447245041a982dpatch
- https://git.kernel.org/stable/c/27856d533eca3804008695f61c1e4d5ff984196bpatch
- https://git.kernel.org/stable/c/3b249988d774dacf13b203817e971934a42243c4patch
- https://git.kernel.org/stable/c/67a35e7da7ef9d2f000aa758552a128324c604a0patch
- https://git.kernel.org/stable/c/6bba24e9ebe6f1c0b356cd471e36bdc7fa434897patch
- https://git.kernel.org/stable/c/72158ea185b27afae163949b0e86164cb6b64e55patch
- https://git.kernel.org/stable/c/b6b22824b30e48ce1df3a2e80990f4b8505deb50patch
- https://git.kernel.org/stable/c/cfd62907f3cdbc3b6da8f49ba907c0390018fe5epatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.