CVE-2026-74474
criticalpriority · track · 0EPSS 0.005 · 42 %ileDEEUFREPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (19)
Products and version ranges known to be affected.
- Red Hat OpenShift Container Platformall versionscert_bundDEcpe:/a:redhat:openshift:container_platform
advisories (3)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-2852Linux Kernel: Mehrere SchwachstellenDeutsch2026-08-16csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um root Rechte zu erlangen, um einen Denial of Service herbeizuführen oder einen nicht näher spezifizierten Angriff durchzuführen.
- CERTFR-2026-AVI-1335Multiples vulnérabilités dans le noyau Linux de SUSEFrançais2026-10-16vendor · certfrFR
- CERTFR-2026-AVI-1375Multiples vulnérabilités dans le noyau Linux de Debian LTSFrançais2026-10-23vendor · certfrFR
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (13)
External citations — patches, advisories, analysis.
- https://git.kernel.org/stable/c/7076a34b6e33315dc160b4612bfea1c597495585cnnvd
- https://git.kernel.org/stable/c/94dee751aad627b3645d424b5d0c736d394573e9cnnvd
- https://git.kernel.org/stable/c/b9553558b48db54ac9273e6b98d7263ef5c1a329cnnvd
- https://www.kernel.org/Patchcnnvd
- https://git.kernel.org/stable/c/7076a34b6e33315dc160b4612bfea1c597495585enisa_euvd
- https://git.kernel.org/stable/c/94dee751aad627b3645d424b5d0c736d394573e9enisa_euvd
- https://git.kernel.org/stable/c/b9553558b48db54ac9273e6b98d7263ef5c1a329enisa_euvd
- https://git.kernel.org/stable/c/371425d4be7795e9158388af9eee0201e6047410nvd
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