Linux Kernel Vulnerability in Ice Driver Configuration
CVE-2026-23377

Currently unrated

Key Information:

Vendor: Linux
Status: Linux
Vendor: CVE Published:; 25 March 2026

What is CVE-2026-23377?

A vulnerability exists in the Linux kernel's ice driver, where an incorrect assumption about the frag_size field in XDP RxQ information can lead to system instability. Specifically, the bpf_xdp_frags_increase_tail() function expects the complete buffer size, rather than the size of the last DMA write, causing potential kernel panic when certain configurations are used. This issue is particularly prevalent when executing the XDP_ADJUST_TAIL_GROW_MULTI_BUFF test with oversized packets. Although the issue does not manifest in zero-copy (ZC) mode, tailroom adjustments still fail under specific scenarios, highlighting the need for a robust configuration fix.

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