CVE-2026-89792
High
Description
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.
SeverityHigh
CVSS7.1
Exploit probability—
Product
Linux
PublishedSep 16, 2026
First seenSep 16, 2026
How to fix
Update
- Linux Linuxdf8aa4a09733c4d3974b1db32c1782b3aad3a151, 0127f1c119bde40578f4d25f5d17333b4e75de8c, fd636a87161def6e35876ab7943641ce457974c8, ffa507f5f774cb4d45136b106989ebc051361263, cd2bcee450bc94770be56c0b896c1a1dc6838bd8, 61a8d06600c8c397f9a7e01940479d4c94a82f5f, f25e93768fcc5d8287e50b1ec52a42e4c276df34, 5.15.222, 6.1.189, 6.6.158, 6.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 88b7f1143b15b29cccb8392b4f38e75b7bb3e300 ≤ v < df8aa4a09733c4d3974b1db32c1782b3aad3a151, 51a6c2af9d20203ddeeaf73314ba8854b38d01bd ≤ v < 0127f1c119bde40578f4d25f5d17333b4e75de8c, a637fabac554270a851033f5ab402ecb90bc479c ≤ v < fd636a87161def6e35876ab7943641ce457974c8, a677ebd8ca2f2632ccdecbad7b87641274e15aac ≤ v < ffa507f5f774cb4d45136b106989ebc051361263, a677ebd8ca2f2632ccdecbad7b87641274e15aac ≤ v < cd2bcee450bc94770be56c0b896c1a1dc6838bd8, a677ebd8ca2f2632ccdecbad7b87641274e15aac ≤ v < 61a8d06600c8c397f9a7e01940479d4c94a82f5f, a677ebd8ca2f2632ccdecbad7b87641274e15aac ≤ v < f25e93768fcc5d8287e50b1ec52a42e4c276df34, 76af689a45aa44714b46d1a7de4ffdf851ded896, 5.15.157 ≤ v < 5.15.222, 6.1.85 ≤ v < 6.1.189, 6.6.26 ≤ v < 6.6.158, 6.8.5 ≤ v < 6.9, 6.9 | df8aa4a09733c4d3974b1db32c1782b3aad3a151, 0127f1c119bde40578f4d25f5d17333b4e75de8c, fd636a87161def6e35876ab7943641ce457974c8, ffa507f5f774cb4d45136b106989ebc051361263, cd2bcee450bc94770be56c0b896c1a1dc6838bd8, 61a8d06600c8c397f9a7e01940479d4c94a82f5f, f25e93768fcc5d8287e50b1ec52a42e4c276df34, 5.15.222, 6.1.189, 6.6.158, 6.9 |
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