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CVE-2026-23204

HIGH CVSS: 7.1 Published: 2026-02-14 Modified: 2026-07-14

Description

In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_u32: use skb_header_pointer_careful() skb_header_pointer() does not fully validate negative @offset values. Use skb_header_pointer_careful() instead. GangMin Kim provided a report and a repro fooling u32_classify(): BUG: KASAN: slab-out-of-bounds in u32_classify+0x1180/0x11b0 net/sched/cls_u32.c:221

Affected Platforms

Linux Linux Kernel

Weakness Type

CWE-125

References