CVE-2026-80580

CVE CVE-2026-80580EUVD EUVD-2026-66495Published 2026-08-26T14:37:37.000ZLast changed 2026-08-27T05:02:01.000ZCVSS 7.8

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: fbdev: bound mode sysfs output to the sysfs buffer mode_string() uses snprintf() which can return a value larger than the remaining buffer space. show_modes() accumulates the return value into i without checking whether i has reached PAGE_SIZE, causing the offset to advance past the sysfs buffer if the modelist is long enough. Add a size parameter to mode_string() and use scnprintf() to return only the bytes actually written. Add an early return when offset already exceeds the buffer. In show_modes(), stop accumulating once the buffer is full.

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; patch: 7.1.10; patch: 7.2; 2.6.12; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <873a1aa15c313263f2e18b38cf525623cc4fabf6; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d15d51fb26e830af58f3f21964f1c09c239077ea

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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