AZL-77658
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-77658.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-77658
- Upstream
- Published
- 2026-02-14T17:15:58Z
- Modified
- 2026-08-28T17:47:42Z
- Summary
- CVE-2026-23204 affecting package kernel for versions less than 6.6.126.1-1
- Details
-
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