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CVE-2025-40285

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CVE-2025-40285

Published: Dec 6, 2025

Modified: May 23, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix possible refcount leak in smb2_sess_setup() Reference count of ksmbd_session will leak when session need reconnect. Fix this by adding the missing ksmbd_user_session_put().

VendorProductVersions

Linux

Linux

affected
37a0e2b362b3150317fb6e2139de67b1e29ae5ff - < 6fc935f798d44a8eb8a5e6659198399fbf57b981
affected
450a844c045ff0895d41b05a1cbe8febd1acfcfd - < e671f9bb97805771380c98de944e2ceab6949188
affected
a39e31e22a535d47b14656a7d6a893c7f6cf758c - < dcc51dfe6ff26b52cac106865a172ac982d78401
affected
b95629435b84b9ecc0c765995204a4d8a913ed52 - < d37b2c81c83d6c0d5ca582f4fe73c672983f9e0d
affected
b95629435b84b9ecc0c765995204a4d8a913ed52 - < 379510a815cb2e64eb0a379cb62295d6ade65df0

+5 more versions

Linux

Linux

affected
6.13
unaffected
0 - < 6.13
unaffected
6.1.159 - <= 6.1.*
unaffected
6.6.117 - <= 6.6.*
unaffected
6.12.59 - <= 6.12.*

+2 more versions

References

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