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
References (5)
Scores
CVSS v3
7.1
EPSS
0.0002
EPSS Percentile
4.7%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Details
CWE
CWE-125
Status
published
Products (18)
linux/Kernel
2.6.35 - 6.6.124linux
linux/Kernel
6.13.0 - 6.18.10linux
linux/Kernel
6.7.0 - 6.12.70linux
Linux/Linux
< 2.6.35
Linux/Linux
2.6.35
Linux/Linux
6.1.167 - 6.1.*
Linux/Linux
6.12.70 - 6.12.*
Linux/Linux
6.18.10 - 6.18.*
Linux/Linux
6.19
Linux/Linux
6.6.124 - 6.6.*
... and 8 more
Published
Feb 14, 2026
Tracked Since
Feb 18, 2026