Medium severity5.5NVD Advisory· Published Jan 23, 2026· Updated Apr 18, 2026
CVE-2025-71150
CVE-2025-71150
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
9cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 8 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=5.15.176,<5.16
- cpe:2.3:o:linux:linux_kernel:6.13:-:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.13:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.13:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.13:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.13:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.13:rc7:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*
- (no CPE)
Patches
Vulnerability mechanics
References
6- git.kernel.org/stable/c/02e06785e85b4bd86ef3d23b7c8d87acc76773d5nvdPatch
- git.kernel.org/stable/c/0fb87b28cafae71e9c8248432cc3a6a1fd759efcnvdPatch
- git.kernel.org/stable/c/8cabcb4dd3dc85dd83a37d26efcc59a66a4074d7nvdPatch
- git.kernel.org/stable/c/cafb57f7bdd57abba87725eb4e82bbdca4959644nvdPatch
- git.kernel.org/stable/c/e54fb2a4772545701766cba08aab20de5eace8cdnvdPatch
- git.kernel.org/stable/c/11fe566b442e3bc2774191740fd377739a87a1c0nvd
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