CVE-2026-64035 PUBLISHED

igc: set tx buffer type for SMD frames

Assigner: Linux
Reserved: 19.07.2026 Published: 19.07.2026 Updated: 20.07.2026

In the Linux kernel, the following vulnerability has been resolved:

igc: set tx buffer type for SMD frames

Sashiko pointed out that igc_fpe_init_smd_frame() initializes igc_tx_buffer fields for an SMD skb, but does not set the buffer type: https://sashiko.dev/#/patchset/20260415025226.114115-1-kohei%40enjuk.jp

Since igc_tx_buffer entries are reused, a stale XDP or XSK type can remain and make TX completion use the wrong cleanup path.

Set the buffer type to IGC_TX_BUFFER_TYPE_SKB.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 5422570c0010bb968738f9256eb2bf83e79b4d63 to 1f83545f432d106d5fc71d3997b2d382104ebcc4 (excl.)
  • affected from 5422570c0010bb968738f9256eb2bf83e79b4d63 to 1c8587bd025244aa52061f5ceecbf5e68a1063d9 (excl.)
  • affected from 5422570c0010bb968738f9256eb2bf83e79b4d63 to 5acc641e590e008caaed480ed9ffae47cf7ecbdf (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.16 is affected
  • unaffected from 0 to 6.16 (excl.)
  • unaffected from 6.18.34 to 6.18.* (incl.)
  • unaffected from 7.0.11 to 7.0.* (incl.)
  • unaffected from 7.1 to * (incl.)

References