Answer in brief
CVE-2026-81014 records a Unknown severity vulnerability in platform/x86: hp-bioscfg: fix heap OOB read in sk_store() and kek_store(). 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 | >=b2715aa2e1352c0060b9dcba57a2e465bbfbcd68 <4c6374dcb270d12907b880cf82a5a5ef21785fc3 || >=b2715aa2e1352c0060b9dcba57a2e465bbfbcd68 <7cd8fe01aba303a2382db0966eb6c8ab41d5f3c2 || >=b2715aa2e1352c0060b9dcba57a2e465bbfbcd68 <67b60703d7d8af1ca0e49f72e1bdb1ccecd41b5b || >=b2715aa2e1352c0060b9dcba57a2e465bbfbcd68 <a7508c7959ff8d037327d377ed21a9c0eabe4674 | 4c6374dcb270d12907b880cf82a5a5ef21785fc3, 7cd8fe01aba303a2382db0966eb6c8ab41d5f3c2, 67b60703d7d8af1ca0e49f72e1bdb1ccecd41b5b, a7508c7959ff8d037327d377ed21a9c0eabe4674 |
| 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 heap OOB read in sk_store() and kek_store() sk_store() and kek_store() strip a trailing newline from the sysfs write before allocating the key buffer: length = count; if (buf[length - 1] == '\n') length--; bioscfg_drv.spm_data.signing_key = kmemdup(buf, length, GFP_KERNEL); but then pass the original "count" (not "length") as the copy size to hp_wmi_perform_query(), which memcpy()s that many bytes out of the "length"-sized allocation, reading one byte past it whenever the write ends in a newline, the normal case for a shell "echo" into sysfs. KASAN confirms this directly: BUG: KASAN: slab-out-of-bounds in hp_wmi_perform_query+0x1e9/0x460 [hp_bioscfg] Read of size 28 at addr ffff88813c8e2b80 by task python3/16022 ... sk_store+0xa7/0x240 [hp_bioscfg] kernfs_fop_write_iter+0x3e1/0x5d0 ... The buggy address is located 0 bytes inside of allocated 27-byte region [ffff88813c8e2b80, ffff88813c8e2b9b) Reproduced identically for kek_store, and at multiple write sizes (28, 57, 201 bytes), each time reading exactly one byte past a kmemdup() allocation one byte smaller than the write. Fix by passing "length" instead of "count" to hp_wmi_perform_query() in both functions.
Quoted source text, attributed separately from HOL analysis.