CVE-2026-89794

INFO Priority: 0.00 BB Relevance: 0/100
Published: 2026-09-16 Modified: 2026-10-30 First seen: 2026-10-30 Status: pending_score

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 (10)

VendorProductVersion
Linux Linux 9f297df20d93411c0b4ddad7f88ba04a7cd36e77 < c7516bdf7d2c1a64b14a9f444e2ee58c12c384ae
Linux Linux e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d < 134d980491b435e5cdb3171225e2506ff17867d1
Linux Linux e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d < f188a400dd5285fec5a84548fe8dca49eee01155
Linux Linux e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d < d83a9de7cecd401c3d3e00ed6371194dcd7313e4
Linux Linux e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d < be15b8da4a82cf1e1f9880b2661b90770606eec1
Linux Linux e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d < 73f860489e3be2245598d1819226304fc5b87291
Linux Linux f2283680a80571ca82d710bc6ecd8f8beac67d63
Linux Linux 6.1.71 < 6.1.191
Linux Linux 5.15.145 < 5.16
Linux Linux 6.6

Bug Bounty Relevance

0 / 100

CVSS Score

Unscored

EPSS — Exploitation Probability

0.21%
Raw Score 0.002150
Percentile 11.9%
Date 2026-10-31

EPSS Trend

2026-10-31
0.00215
2026-10-30
0.00209
2026-10-29
0.00209

Intelligence Sources

mitre ref →
nvd ref →