CVE-2026-90145

/// Technical description

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

hinic3: Fix skb linearization mismatch and drop skb when skb_checksum_help() failed

Previously, hinic3_send_one_skb() cached the skb fragment count before

calling hinic3_tx_offload(). If hinic3_tx_csum() falls back to

skb_checksum_help() for unsupported tunnel packets, the skb may be

linearized. Continuing to build the TX descriptor with the stale

fragment count leads to a descriptor mismatch, which can trigger

out-of-bounds DMA reads or IOMMU faults.

Furthermore, the old code ignored the return value of skb_checksum_help(),

transmitting corrupted packets with incomplete checksums upon failure.

Fix this by:

1. Moving the hinic3_tx_offload() call before calculating 'num_sge' to

ensure the correct fragment count is used if the SKB is linearized.

2. Propagating skb_checksum_help() errors and returning

HINIC3_TX_OFFLOAD_INVALID to properly drop the skb.

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References