What happened
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 versions
Linux: 5422570c0010bb968738f9256eb2bf83e79b4d63 through before 1f83545f432d106d5fc71d3997b2d382104ebcc4 (git); 5422570c0010bb968738f9256eb2bf83e79b4d63 through before 1c8587bd025244aa52061f5ceecbf5e68a1063d9 (git); 5422570c0010bb968738f9256eb2bf83e79b4d63 through before 5acc641e590e008caaed480ed9ffae47cf7ecbdf (git); 6.16 Fixed: See vendor advisory.
Why it matters
Review the vendor advisory and exposure of the affected product to determine operational impact.
Detection & mitigation
- Apply vendor-provided updates or mitigations.
- Review affected product exposure and access logs.
Public PoC references
No public PoC reference has passed the current publication threshold.