Answer in brief
CVE-2026-89792 records a High severity (CVSS 7.1) vulnerability in ksmbd: prevent out-of-bounds reads in share config responses. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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 7.1. 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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=88b7f1143b15b29cccb8392b4f38e75b7bb3e300 <df8aa4a09733c4d3974b1db32c1782b3aad3a151 || >=51a6c2af9d20203ddeeaf73314ba8854b38d01bd <0127f1c119bde40578f4d25f5d17333b4e75de8c || >=a637fabac554270a851033f5ab402ecb90bc479c <fd636a87161def6e35876ab7943641ce457974c8 || >=a677ebd8ca2f2632ccdecbad7b87641274e15aac <ffa507f5f774cb4d45136b106989ebc051361263 || >=a677ebd8ca2f2632ccdecbad7b87641274e15aac <cd2bcee450bc94770be56c0b896c1a1dc6838bd8 || >=a677ebd8ca2f2632ccdecbad7b87641274e15aac <61a8d06600c8c397f9a7e01940479d4c94a82f5f || >=a677ebd8ca2f2632ccdecbad7b87641274e15aac <f25e93768fcc5d8287e50b1ec52a42e4c276df34 || 76af689a45aa44714b46d1a7de4ffdf851ded896 || >=5.15.157 <5.15.222 || >=6.1.85 <6.1.189 || >=6.6.26 <6.6.158 || >=6.8.5 <6.9 | df8aa4a09733c4d3974b1db32c1782b3aad3a151, 0127f1c119bde40578f4d25f5d17333b4e75de8c, fd636a87161def6e35876ab7943641ce457974c8, ffa507f5f774cb4d45136b106989ebc051361263, cd2bcee450bc94770be56c0b896c1a1dc6838bd8, 61a8d06600c8c397f9a7e01940479d4c94a82f5f, f25e93768fcc5d8287e50b1ec52a42e4c276df34, 5.15.222, 6.1.189, 6.6.158, 6.9 |
| Linux/Linuxgeneric | 6.9 | Not reported |
| Linux/Linuxgeneric | >=a677ebd8ca2f2632ccdecbad7b87641274e15aac <61a8d06600c8c397f9a7e01940479d4c94a82f5f || >=a677ebd8ca2f2632ccdecbad7b87641274e15aac <f25e93768fcc5d8287e50b1ec52a42e4c276df34 || 88b7f1143b15b29cccb8392b4f38e75b7bb3e300 || 51a6c2af9d20203ddeeaf73314ba8854b38d01bd || a637fabac554270a851033f5ab402ecb90bc479c || 76af689a45aa44714b46d1a7de4ffdf851ded896 || >=5.15.157 <5.16 || >=6.1.85 <6.2 || >=6.6.26 <6.7 || >=6.8.5 <6.9 | 61a8d06600c8c397f9a7e01940479d4c94a82f5f, f25e93768fcc5d8287e50b1ec52a42e4c276df34, 5.16, 6.2, 6.7, 6.9 |
| Linux/Linuxgeneric | >=a677ebd8ca2f2632ccdecbad7b87641274e15aac <ffa507f5f774cb4d45136b106989ebc051361263 || >=a677ebd8ca2f2632ccdecbad7b87641274e15aac <cd2bcee450bc94770be56c0b896c1a1dc6838bd8 || >=a677ebd8ca2f2632ccdecbad7b87641274e15aac <61a8d06600c8c397f9a7e01940479d4c94a82f5f || >=a677ebd8ca2f2632ccdecbad7b87641274e15aac <f25e93768fcc5d8287e50b1ec52a42e4c276df34 || 88b7f1143b15b29cccb8392b4f38e75b7bb3e300 || 51a6c2af9d20203ddeeaf73314ba8854b38d01bd || a637fabac554270a851033f5ab402ecb90bc479c || 76af689a45aa44714b46d1a7de4ffdf851ded896 || >=5.15.157 <5.16 || >=6.1.85 <6.2 || >=6.6.26 <6.7 || >=6.8.5 <6.9 | ffa507f5f774cb4d45136b106989ebc051361263, cd2bcee450bc94770be56c0b896c1a1dc6838bd8, 61a8d06600c8c397f9a7e01940479d4c94a82f5f, f25e93768fcc5d8287e50b1ec52a42e4c276df34, 5.16, 6.2, 6.7, 6.9 |
Published upstream
Sep 16, 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 16, 2026
In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent out-of-bounds reads in share config responses Validate IPC share configuration payload sizes before consuming variable-length fields. Bound veto list parsing and account for the separator byte when deriving the path length.
Quoted source text, attributed separately from HOL analysis.