CVE-2025-71150

MediumCVSS 5.5/10Last modified Jul 30, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: Fix refcount leak when invalid session is found on session lookup

When a session is found but its state is not SMB2_SESSION_VALID, It indicates that no valid session was found, but it is missing to decrement the reference count acquired by the session lookup, which results in a reference count leak. This patch fixes the issue by explicitly calling ksmbd_user_session_put to release the reference to the session.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected software

VendorProductVersions
LinuxLinux>= 2107ab40629aeabbec369cf34b8cf0f288c3eb1b, < 11fe566b442e3bc2774191740fd377739a87a1c0; >= 37a0e2b362b3150317fb6e2139de67b1e29ae5ff, < 0fb87b28cafae71e9c8248432cc3a6a1fd759efc; >= 450a844c045ff0895d41b05a1cbe8febd1acfcfd, < e54fb2a4772545701766cba08aab20de5eace8cd; >= a39e31e22a535d47b14656a7d6a893c7f6cf758c, < 02e06785e85b4bd86ef3d23b7c8d87acc76773d5; >= b95629435b84b9ecc0c765995204a4d8a913ed52, < 8cabcb4dd3dc85dd83a37d26efcc59a66a4074d7; >= b95629435b84b9ecc0c765995204a4d8a913ed52, < cafb57f7bdd57abba87725eb4e82bbdca4959644; >= 5.15.176, < 5.15.203; >= 6.1.121, < 6.1.160; >= 6.6.67, < 6.6.120; >= 6.12.6, < 6.12.64
LinuxLinux6.13

References

Timeline

Published
Jan 23, 2026
Last modified
Jul 30, 2026
NVD status
Modified

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CVE-2025-71150: Medium severity, CVSS 5.5 | Vulnix