CVE-2026-89794
Received
Received - Intake
BaseFortify
Vulnerability report for CVE-2026-89794, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-09-16
Last updated on: 2026-09-16
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: zero pipe read compound padding
Compound response handling extends the last response iov to an eight-byte
boundary.
smb2_read_pipe() allocates only the payload size, so the alignment padding
can expose up to seven bytes of uninitialized kernel heap memory.
Allocate the aligned size and clear the unused tail before pinning the
response buffer.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Linux | Linux | e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d |
| Linux | Linux | e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d |
| Linux | Linux | e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d |
| Linux | Linux | e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d |
| Linux | Linux | f2283680a80571ca82d710bc6ecd8f8beac67d63 |
| Linux | Linux | 9f297df20d93411c0b4ddad7f88ba04a7cd36e77 |
| Linux | Linux | 5.15.145 |
| Linux | Linux | 6.1.71 |
| Linux | Linux | 6.6 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
