Answer in brief
CVE-2026-74474 records a Critical severity (CVSS 9.8) vulnerability in vxlan: use pskb_network_may_pull() for transmit path header pulls. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e4f67addf158f98f8197e08974966b18480dc751 <94dee751aad627b3645d424b5d0c736d394573e9 || >=e4f67addf158f98f8197e08974966b18480dc751 <7076a34b6e33315dc160b4612bfea1c597495585 || >=e4f67addf158f98f8197e08974966b18480dc751 <b9553558b48db54ac9273e6b98d7263ef5c1a329 | 94dee751aad627b3645d424b5d0c736d394573e9, 7076a34b6e33315dc160b4612bfea1c597495585, b9553558b48db54ac9273e6b98d7263ef5c1a329 |
| Linux/Linuxgeneric | 3.8 | Not reported |
| Linux/Linuxgeneric | >=e4f67addf158f98f8197e08974966b18480dc751 <bb01c51950c3ff3c76acdd54b85ab38ccc2a8bb4 || >=e4f67addf158f98f8197e08974966b18480dc751 <6146901881f09ef063eb34ad389f63231f8486f5 || >=e4f67addf158f98f8197e08974966b18480dc751 <94dee751aad627b3645d424b5d0c736d394573e9 || >=e4f67addf158f98f8197e08974966b18480dc751 <7076a34b6e33315dc160b4612bfea1c597495585 || >=e4f67addf158f98f8197e08974966b18480dc751 <b9553558b48db54ac9273e6b98d7263ef5c1a329 | bb01c51950c3ff3c76acdd54b85ab38ccc2a8bb4, 6146901881f09ef063eb34ad389f63231f8486f5, 94dee751aad627b3645d424b5d0c736d394573e9, 7076a34b6e33315dc160b4612bfea1c597495585, b9553558b48db54ac9273e6b98d7263ef5c1a329 |
| Linux/Linuxgeneric | >=e4f67addf158f98f8197e08974966b18480dc751 <371425d4be7795e9158388af9eee0201e6047410 || >=e4f67addf158f98f8197e08974966b18480dc751 <bb01c51950c3ff3c76acdd54b85ab38ccc2a8bb4 || >=e4f67addf158f98f8197e08974966b18480dc751 <6146901881f09ef063eb34ad389f63231f8486f5 || >=e4f67addf158f98f8197e08974966b18480dc751 <94dee751aad627b3645d424b5d0c736d394573e9 || >=e4f67addf158f98f8197e08974966b18480dc751 <7076a34b6e33315dc160b4612bfea1c597495585 || >=e4f67addf158f98f8197e08974966b18480dc751 <b9553558b48db54ac9273e6b98d7263ef5c1a329 | 371425d4be7795e9158388af9eee0201e6047410, bb01c51950c3ff3c76acdd54b85ab38ccc2a8bb4, 6146901881f09ef063eb34ad389f63231f8486f5, 94dee751aad627b3645d424b5d0c736d394573e9, 7076a34b6e33315dc160b4612bfea1c597495585, b9553558b48db54ac9273e6b98d7263ef5c1a329 |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: vxlan: use pskb_network_may_pull() for transmit path header pulls In vxlan_xmit(), arp_reduce(), and vxlan_mdb_entry_skb_get(), pskb_may_pull() was being called to verify the availability of network layer headers (ARP, IPv6/ND, IP/IPv6 MDB keys). However, during transmit skb->data points to the MAC header, so skb_network_offset(skb) is ETH_HLEN (14 bytes). Using pskb_may_pull(skb, len) only checks len bytes from skb->data rather than skb_network_offset(skb) + len, which can leave part of the network header in non-linear frags. Replace these remaining pskb_may_pull() calls with pskb_network_may_pull() to properly account for the MAC header offset.
Quoted source text, attributed separately from HOL analysis.