ksmbd: zero pipe read compound padding (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.21 % · percentile 12 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
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.
References
- https://git.kernel.org/stable/c/c7516bdf7d2c1a64b14a9f444e2ee58c12c384ae
- https://git.kernel.org/stable/c/134d980491b435e5cdb3171225e2506ff17867d1
- 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
European references
- ENISA EUVD · EUVD-2026-80394
- GCVE · GCVE-0-2026-89794
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1289 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1253 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 9f297df20d93411c0b4ddad7f88ba04a7cd36e77 < c7516bdf7d2c1a64b14a9f444e2ee58c12c384ae ; affected e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d < 134d980491b435e5cdb3171225e2506ff17867d1 ; affected e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d < f188a400dd5285fec5a84548fe8dca49eee01155 ; affected e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d < d83a9de7cecd401c3d3e00ed6371194dcd7313e4 ; affected e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d < be15b8da4a82cf1e1f9880b2661b90770606eec1 ; affected e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d < 73f860489e3be2245598d1819226304fc5b87291 |
| Linux · Linux | affected 6.6 ; unaffected 0 < 6.6 ; unaffected 6.1.191 ≤ 6.1.* ; unaffected 6.6.160 ≤ 6.6.* ; unaffected 6.12.110 ≤ 6.12.* ; unaffected 6.18.51 ≤ 6.18.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |