What’s Vulnerable › Vulnerabilities

CVE-2026-74467: s390/qeth: Check CAP_NET_ADMIN for private ioctls

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-15 · updated 2026-10-16

Description

In the Linux kernel, the following vulnerability has been resolved: s390/qeth: Check CAP_NET_ADMIN for private ioctls Gate the SIOCDEVPRIVATE ioctl commands SIOC_QETH_ADP_SET_SNMP_CONTROL, SIOC_QETH_GET_CARD_TYPE and SIOC_QETH_QUERY_OAT with CAP_NET_ADMIN capable check to ensure unprivileged users cannot invoke them.

Affected products

• Linux kernel: 5.15 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3ea5210db058347481c93849786982f874f7be2d
• https://git.kernel.org/stable/c/4e48168825818bf4a13c743582227d15f1d30d04
• https://git.kernel.org/stable/c/8fb69547924bbb3d7c900a0d7d137a7234db3f5f
• https://git.kernel.org/stable/c/93a0a846ec59a88e0c402878a15357a5ce430eb4
• https://git.kernel.org/stable/c/b40c74262f7e1e601221cebccdbdb2b392ff9976
• https://git.kernel.org/stable/c/bd63c7879eaa87f1958f7ee027813356fcd9ff11
• https://git.kernel.org/stable/c/d211028bac1bd0fff0026bfa2a8328e5b78cd0e6

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