CVE-2026-93148

CVE CVE-2026-93148EUVD EUVD-2026-82256Published 2026-09-17T16:11:45.000ZLast changed 2026-09-18T17:56:14.000ZCVSS 7.8

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject MEM_ALLOC BTF accesses past object bounds BTF struct walks relax the struct-size check for accesses through a trailing flexible array. That is valid for ordinary BTF type walking, but PTR_TO_BTF_ID | MEM_ALLOC values point to objects allocated with the static BTF type size. When walking a MEM_ALLOC object, reject the access before applying the flexible-array relaxation if the access range extends past the struct size. Apply the same policy to struct ID matching so kfunc and kptr type checks do not walk past the allocated object bounds either.

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 patch: 0; 6.2; patch: 7.3-rc1; patch: 7.2.6; 958cf2e273f0929c66169e0788031310e8118722 <9c9ee0324c774490ae953162aaaf4561d222bd93; 958cf2e273f0929c66169e0788031310e8118722 <e626a50d07d43421cbf7bfb5a084b33a5e276b6e

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

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.