CVE-2025-68817

HIGH

Linux Kernel < 5.15.199 Use-After-Free in ksmbd_tree_connect_put

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_tree_connect_put under concurrency Under high concurrency, A tree-connection object (tcon) is freed on a disconnect path while another path still holds a reference and later executes *_put()/write on it.

References (6)

Core 6

Core References

Patch

https://git.kernel.org/stable/c/446beed646b2e426dd53d27358365f8678e1dd01

Patch

https://git.kernel.org/stable/c/d092de8a26c952379ded8e6b0bda31d89befac1a

Patch

https://git.kernel.org/stable/c/d64977495e44855f2b28d8ce56107c963a7a50e4

Patch

https://git.kernel.org/stable/c/21a3d01fc6db5129f81edb0ab7cb94fd758bcbea

Patch

https://git.kernel.org/stable/c/063cbbc6f595ea36ad146e1b7d2af820894beb21

Patch

https://git.kernel.org/stable/c/b39a1833cc4a2755b02603eec3a71a85e9dff926

Scores

CVSS v3 7.8

EPSS 0.0001

EPSS Percentile 1.5%

Attack Vector LOCAL

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

Details

CWE

CWE-416

Status published

Products (23)

linux/Kernel < 5.15.199linux

linux/Kernel 5.16.0 - 6.1.160linux

linux/Kernel 6.2.0 - 6.6.120linux

linux/Kernel 6.6.0 - 6.12.64linux

linux/Kernel 6.7.0 - 6.18.3linux

Linux/Linux < 6.6

Linux/Linux 33b235a6e6ebe0f05f3586a71e8d281d00f71e2e - 063cbbc6f595ea36ad146e1b7d2af820894beb21

Linux/Linux 33b235a6e6ebe0f05f3586a71e8d281d00f71e2e - 21a3d01fc6db5129f81edb0ab7cb94fd758bcbea

Linux/Linux 33b235a6e6ebe0f05f3586a71e8d281d00f71e2e - b39a1833cc4a2755b02603eec3a71a85e9dff926

Linux/Linux 33b235a6e6ebe0f05f3586a71e8d281d00f71e2e - d64977495e44855f2b28d8ce56107c963a7a50e4

... and 13 more

Published Jan 13, 2026

Tracked Since Feb 18, 2026