CVE-2026-89794

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.

EPSS

0.2% chance of exploitation in the next 30 days; higher than 10% of CVEs (scores of 2026-10-25)

Published

2026-09-16

Modified

2026-10-21

Record from

the NVD, synced 2026-10-22

References

• https://git.kernel.org/stable/c/134d980491b435e5cdb3171225e2506ff17867d1
• https://git.kernel.org/stable/c/73f860489e3be2245598d1819226304fc5b87291
• https://git.kernel.org/stable/c/be15b8da4a82cf1e1f9880b2661b90770606eec1
• https://git.kernel.org/stable/c/d83a9de7cecd401c3d3e00ed6371194dcd7313e4
• https://git.kernel.org/stable/c/f188a400dd5285fec5a84548fe8dca49eee01155

Check your stackJSON