CVE-2025-40285

Summary

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().

Affected Software

VendorProductVersion RangeStatus
LinuxLinux37a0e2b362b3150317fb6e2139de67b1e29ae5ff < 6fc935f798d44a8eb8a5e6659198399fbf57b981affected
LinuxLinux450a844c045ff0895d41b05a1cbe8febd1acfcfd < e671f9bb97805771380c98de944e2ceab6949188affected
LinuxLinuxa39e31e22a535d47b14656a7d6a893c7f6cf758c < dcc51dfe6ff26b52cac106865a172ac982d78401affected
LinuxLinuxb95629435b84b9ecc0c765995204a4d8a913ed52 < d37b2c81c83d6c0d5ca582f4fe73c672983f9e0daffected
LinuxLinuxb95629435b84b9ecc0c765995204a4d8a913ed52 < 379510a815cb2e64eb0a379cb62295d6ade65df0affected
LinuxLinux2107ab40629aeabbec369cf34b8cf0f288c3eb1baffected
LinuxLinux6.1.121 < 6.1.159affected
LinuxLinux6.6.67 < 6.6.117affected
LinuxLinux6.12.6 < 6.12.59affected
LinuxLinux5.15.176 < 5.16affected
LinuxLinux6.13affected
LinuxLinux0 < 6.13unaffected
LinuxLinux6.1.159 <= 6.1.*unaffected
LinuxLinux6.6.117 <= 6.6.*unaffected
LinuxLinux6.12.59 <= 6.12.*unaffected
LinuxLinux6.17.9 <= 6.17.*unaffected
LinuxLinux6.18 <= *unaffected

Weaknesses

References