Answer in brief
CVE-2026-81012 records a High severity (CVSS 8.4) 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), 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.
CVSS is 8.4. 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), 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 |
| Linux/Linuxgeneric | >=a34fc329b1895fc8a6eb12099adc47009421ba6a <8f5aa1506cdddea6b33584c2445b9ce99eeddb64 || >=a34fc329b1895fc8a6eb12099adc47009421ba6a <3cc772d0154799961f032e5a992d4a50523e291a || >=a34fc329b1895fc8a6eb12099adc47009421ba6a <b15b334fbc3c0c46440f8a892ebf62164fca23d6 || >=a34fc329b1895fc8a6eb12099adc47009421ba6a <ddf98cf33529714b3ba1a158afb1db5b0f759a1a || >=a34fc329b1895fc8a6eb12099adc47009421ba6a <dc03f05e419f3460342fb7564884f244622634b6 | 8f5aa1506cdddea6b33584c2445b9ce99eeddb64, 3cc772d0154799961f032e5a992d4a50523e291a, b15b334fbc3c0c46440f8a892ebf62164fca23d6, ddf98cf33529714b3ba1a158afb1db5b0f759a1a, dc03f05e419f3460342fb7564884f244622634b6 |
Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 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.