CVE-2025-37952

Published May 20, 2025

Last updated 2 months ago

Overview

Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix UAF in __close_file_table_ids A use-after-free is possible if one thread destroys the file via __ksmbd_close_fd while another thread holds a reference to it. The existing checks on fp->refcount are not sufficient to prevent this. The fix takes ft->lock around the section which removes the file from the file table. This prevents two threads acquiring the same file pointer via __close_file_table_ids, as well as the other functions which retrieve a file from the IDR and which already use this same lock.
Source
416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD status
Awaiting Analysis

Social media

Hype score
Not currently trending

  1. CVE-2025-37952 Linux Kernel Use-After-Free Vulnerability in ksmbd File Handling ... https://t.co/2j1bvHZnQr Vulnerability Alert Subscriptions: https://t.co/hrQhy5uz4x

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    20 May 2025

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References

Sources include official advisories and independent security research.