CVE-2026-89794
Last modified
CVE-2026-89794 is a vulnerability of currently unknown severity. 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..
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.
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d, < f188a400dd5285fec5a84548fe8dca49eee01155; >= e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d, < d83a9de7cecd401c3d3e00ed6371194dcd7313e4; >= e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d, < be15b8da4a82cf1e1f9880b2661b90770606eec1; >= e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d, < 73f860489e3be2245598d1819226304fc5b87291; f2283680a80571ca82d710bc6ecd8f8beac67d63; 9f297df20d93411c0b4ddad7f88ba04a7cd36e77; >= 5.15.145, < 5.16; >= 6.1.71, < 6.2 |
| Linux | Linux | 6.6 |
References
Timeline
- Published
- Last Modified
- Status
- Received
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