VDB
DEBIAN-CVE-2026-31409
DEBIAN-CVE-2026-31409
PUBLISHED
CVSS 8.800000190734863 HIGH
In the Linux kernel, the following vulnerability has been resolved: ksmbd: unset conn->binding on failed binding request When a multichannel SMB2_SESSION_SETUP request with SMB2_SESSION_REQ_FLAG_BINDING fails ksmbd sets conn->binding = true but never clears it on the error path. This leaves the connection in a binding state where all subsequent ksmbd_session_lookup_all() calls fall back to the global sessions table. This fix it by clearing conn->binding = false in the error path.
Risk Scores
CVSS 3.1
8.800000190734863
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | linux | 6.12.74-2, 6.12.85-1, 6.12.85-1 |
| Debian:13 | linux | 0, 6.12.43-1~bpo12+1, 6.12.48-1 |
| Debian:12 | linux | 6.7.9-1, 6.7.9-2, 6.8.11-1 |
| Debian:11 | linux-6.1 | 0, 6.1.106-3, 6.1.106-3 |
Exploit Intelligence
- 4593.2.0.yml (github-poc)
- 4628.1.0.yml (github-poc)
Timeline
- Apr 6, 2026 CVE Published
- May 2, 2026 CVE Updated