CVE Watch14 jul 2026

CVE-2026-23204

In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_u32: use skb_header_pointer_careful() skb_header_pointe

CVSS

7.1

Alto

EPSS

0.1%

KEV

—

Exploit Today

0-100

Publicado: 14 feb 2026 · Última mod.: 14 jul 2026 · CWE-125

EPSS · 30d

0.1%EPSS · 30 días0.1%

2026-06-302026-07-16

Descripción técnica

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

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