CVE-2025-71150
ksmbd: Fix refcount leak when invalid session is found on session lookup
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jan 23, 2026 |
| Last Updated | Apr 18, 2026 |
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Affected Versions
Linux / Linux
2107ab40629aeabbec369cf34b8cf0f288c3eb1b < 11fe566b442e3bc2774191740fd377739a87a1c0 37a0e2b362b3150317fb6e2139de67b1e29ae5ff < 0fb87b28cafae71e9c8248432cc3a6a1fd759efc 450a844c045ff0895d41b05a1cbe8febd1acfcfd < e54fb2a4772545701766cba08aab20de5eace8cd a39e31e22a535d47b14656a7d6a893c7f6cf758c < 02e06785e85b4bd86ef3d23b7c8d87acc76773d5 b95629435b84b9ecc0c765995204a4d8a913ed52 < 8cabcb4dd3dc85dd83a37d26efcc59a66a4074d7 b95629435b84b9ecc0c765995204a4d8a913ed52 < cafb57f7bdd57abba87725eb4e82bbdca4959644
Linux / Linux
6.13
References
git.kernel.org: https://git.kernel.org/stable/c/11fe566b442e3bc2774191740fd377739a87a1c0 git.kernel.org: https://git.kernel.org/stable/c/0fb87b28cafae71e9c8248432cc3a6a1fd759efc git.kernel.org: https://git.kernel.org/stable/c/e54fb2a4772545701766cba08aab20de5eace8cd git.kernel.org: https://git.kernel.org/stable/c/02e06785e85b4bd86ef3d23b7c8d87acc76773d5 git.kernel.org: https://git.kernel.org/stable/c/8cabcb4dd3dc85dd83a37d26efcc59a66a4074d7 git.kernel.org: https://git.kernel.org/stable/c/cafb57f7bdd57abba87725eb4e82bbdca4959644