CVE-2026-89794ksmbd: zero pipe read compound padding
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d before f188a400dd5285fec5a84548fe8dca49eee01155; from e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d before d83a9de7cecd401c3d3e00ed6371194dcd7313e4; from e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d before be15b8da4a82cf1e1f9880b2661b90770606eec1; from e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d before 73f860489e3be2245598d1819226304fc5b87291; f2283680a80571ca82d710bc6ecd8f8beac67d63; 9f297df20d93411c0b4ddad7f88ba04a7cd36e77; from 5.15.145 before 5.16; from 6.1.71 before 6.2 | CNA record |
References
- https://git.kernel.org/stable/c/f188a400dd5285fec5a84548fe8dca49eee01155
- https://git.kernel.org/stable/c/d83a9de7cecd401c3d3e00ed6371194dcd7313e4
- https://git.kernel.org/stable/c/be15b8da4a82cf1e1f9880b2661b90770606eec1
- https://git.kernel.org/stable/c/73f860489e3be2245598d1819226304fc5b87291
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.