Answer in brief
CVE-2026-81012 records a Unknown severity vulnerability in platform/x86: hp-bioscfg: fix off-by-one write in hp_get_string_from_buffer(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=a34fc329b1895fc8a6eb12099adc47009421ba6a <3cc772d0154799961f032e5a992d4a50523e291a || >=a34fc329b1895fc8a6eb12099adc47009421ba6a <b15b334fbc3c0c46440f8a892ebf62164fca23d6 || >=a34fc329b1895fc8a6eb12099adc47009421ba6a <ddf98cf33529714b3ba1a158afb1db5b0f759a1a || >=a34fc329b1895fc8a6eb12099adc47009421ba6a <dc03f05e419f3460342fb7564884f244622634b6 | 3cc772d0154799961f032e5a992d4a50523e291a, b15b334fbc3c0c46440f8a892ebf62164fca23d6, ddf98cf33529714b3ba1a158afb1db5b0f759a1a, dc03f05e419f3460342fb7564884f244622634b6 |
| Linux/Linuxgeneric | 6.6 | Not reported |
Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 11, 2026
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.
Quoted source text, attributed separately from HOL analysis.