AZL-90438
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-90438.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-90438
- Upstream
- Published
- 2026-06-24T17:17:23Z
- Modified
- 2026-09-08T05:27:28Z
- Summary
- CVE-2026-53091 affecting package kernel 6.6.150.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: pull headers in qdisc_pkt_len_segs_init()
Most ndo_start_xmit() methods expects headers of gso packets to be already in skb->head.
net/core/tso.c users are particularly at risk, because tso_build_hdr() does a memcpy(hdr, skb->data, hdr_len);
qdisc_pkt_len_segs_init() already does a dissection of gso packets.
Use pskb_may_pull() instead of skb_header_pointer() to make sure drivers do not have to reimplement this.
Some malicious packets could be fed, detect them so that we can drop them sooner with a new SKB_DROP_REASON_SKB_BAD_GSO drop_reason.
- References