CVE-2026-64035

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux5422570c0010bb968738f9256eb2bf83e79b4d63 < 1f83545f432d106d5fc71d3997b2d382104ebcc4affected
LinuxLinux5422570c0010bb968738f9256eb2bf83e79b4d63 < 1c8587bd025244aa52061f5ceecbf5e68a1063d9affected
LinuxLinux5422570c0010bb968738f9256eb2bf83e79b4d63 < 5acc641e590e008caaed480ed9ffae47cf7ecbdfaffected
LinuxLinux6.16affected
LinuxLinux0 < 6.16unaffected
LinuxLinux6.18.34 <= 6.18.*unaffected
LinuxLinux7.0.11 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References