CVE-2026-80610

CVE CVE-2026-80610EUVD EUVD-2026-67486Published 2026-08-28T06:48:33.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: net: enetc: fix potential divide-by-zero when num_vsi is zero For i.MX94 series, all the standalone ENETCs do not support SR-IOV, so pf->caps.num_vsi is zero. This leads to a divide-by-zero in enetc4_default_rings_allocation() when distributing rings among PF and VFs. Division by zero is undefined behavior in C. On ARM64, the UDIV/SDIV instructions silently return zero rather than raising an exception, so the issue does not cause a visible crash. However, relying on this behavior is incorrect and poses a cross-platform compatibility risk. Add an explicit check for num_vsi == 0 and return early after the PF's rings have been configured.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

• Linux — Linux 2d673b0e2f8d75b66aa21e5ca5d95c415dec5be7 <cd37bcb67f909a8683cc8c38a63ac7367a7f6161; patch: 7.2; patch: 0; 6.19; patch: 7.1.5; 2d673b0e2f8d75b66aa21e5ca5d95c415dec5be7 <5da65537792b68b6052ffcab65e04c27aea6dfe4

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

• Linux — Linux

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