smb: client: close handle after create-context parsing failure (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.18 % · percentile 7 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: smb: client: close handle after create-context parsing failure SMB2_open() accounts a successful CREATE response as a remote open before parsing its create contexts. If smb2_parse_contexts() rejects malformed context data, SMB2_open() returns without closing the handle, leaving the server-side handle open and num_remote_opens elevated. Close the handle after a post-CREATE context parsing failure so the error path releases the remote resource and balances the open count.
References
- https://git.kernel.org/stable/c/d4c05b5cb0a3132453e36a300d45de44bf6783c4
- https://git.kernel.org/stable/c/ee61f1dc516d97afa79908140d0a8c556c2fe90c
- https://git.kernel.org/stable/c/007b87f6a7c38959ed79cf7d3fd7b3b4eb5f67fd
- https://git.kernel.org/stable/c/eaa97a196a107d4ef8775df2248181624151812e
- https://git.kernel.org/stable/c/80c67cc71d32ccafc89a29b669243b40d81b930f
- https://git.kernel.org/stable/c/f09875ff901e933e7b22c913daf51d21e9d93a45
- https://git.kernel.org/stable/c/cdb36b09fb1f86d638d0afb44d621ed3f7c1d8eb
- https://git.kernel.org/stable/c/566820af017e81497fb5e9d3ad6e7ffe2828bc8b
European references
- ENISA EUVD · EUVD-2026-103693
- GCVE · GCVE-0-2026-98453
CERT-FR advisories
- CERTFR-2026-AVI-1375 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 13fb0fc4917621f3dfa285a27eaf7151d770b5e5 < d4c05b5cb0a3132453e36a300d45de44bf6783c4 ; affected 890bc4fac3c0973a49cac35f634579bebba7fe48 < ee61f1dc516d97afa79908140d0a8c556c2fe90c ; affected 1ae3c59355dc9882e09c020afe8ffbd895ad0f29 < 007b87f6a7c38959ed79cf7d3fd7b3b4eb5f67fd ; affected 17a0f64cc02d4972e21c733d9f21d1c512963afa < eaa97a196a107d4ef8775df2248181624151812e ; affected af1689a9b7701d9907dfc84d2a4b57c4bc907144 < 80c67cc71d32ccafc89a29b669243b40d81b930f ; affected af1689a9b7701d9907dfc84d2a4b57c4bc907144 < f09875ff901e933e7b22c913daf51d21e9d93a45 |
| Linux · Linux | affected 6.7 ; unaffected 0 < 6.7 ; unaffected 5.10.273 ≤ 5.10.* ; unaffected 5.15.224 ≤ 5.15.* ; unaffected 6.1.191 ≤ 6.1.* ; unaffected 6.6.160 ≤ 6.6.* |
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 |