CVE-2026-90145: high-severity vulnerability in Linux
hinic3: Fix skb linearization mismatch and drop skb when skb_checksum_help() failed
Published · Updated
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.2%
exploitation probability
0.2%top 95% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Affected products
Linux · LinuxRelated CVEs — Linux
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