NetSight
IP …
high7.1

CVE-2026-23204

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 va…

Impact

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 products

VendorProductAffected versions
LinuxLinux Kernel
from 2.6.35.1 before 6.6.124
from 6.7 before 6.12.70
from 6.13 before 6.18.10
Versions 2.6.35, 6.19

Weakness classification

CWE-125

References