CVE-2026-81012
CVE CVE-2026-81012EUVD EUVD-2026-76335Published 2026-09-11T19:43:02.000ZLast changed 2026-09-14T11:59:44.000ZCVSS 8.4
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: platform/x86: hp-bioscfg: fix off-by-one write in hp_get_string_from_buffer() hp_get_string_from_buffer() clamps the converted string length against the destination buffer size with "size > dst_size", so when the converted length is exactly equal to dst_size, conv_dst_size is left at dst_size and the unconditional NUL terminator write dst[conv_dst_size] = 0; lands one byte past the destination buffer. This is the same shape of bug as the previously fixed off-by-one in hp_convert_hexstr_to_str(): the buffer is sized correctly for the content, but the terminator write is never checked against that size. Fix by changing the comparison to ">=" so conv_dst_size is always left with room for the terminator. All fixed-size destinations that reach this function (path[512], current_value[512], current_password/current_value[64], and the per-entry buffers in encodings[][512] and prerequisites[][512]) are affected.
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 a34fc329b1895fc8a6eb12099adc47009421ba6a <b15b334fbc3c0c46440f8a892ebf62164fca23d6; patch: 6.18.50; 6.6; patch: 7.2.4; a34fc329b1895fc8a6eb12099adc47009421ba6a <8f5aa1506cdddea6b33584c2445b9ce99eeddb64; a34fc329b1895fc8a6eb12099adc47009421ba6a <3cc772d0154799961f032e5a992d4a50523e291a; patch: 6.12.109; patch: 7.3-rc1; patch: 0; a34fc329b1895fc8a6eb12099adc47009421ba6a <ddf98cf33529714b3ba1a158afb1db5b0f759a1a; a34fc329b1895fc8a6eb12099adc47009421ba6a <dc03f05e419f3460342fb7564884f244622634b6; patch: 6.6.157
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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