CVEvulnerability

CVE-2025-37952

7.8 HIGH Published 2025-05-20 Modified 2026-07-30 Official page ↗
Status
Modified
Published
2025-05-20
Last modified
2026-07-30
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-416

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.

Affected configurations

• linux linux kernel (>= 5.15 < 6.6.91) • linux linux kernel (>= 6.7 < 6.12.29) • linux linux kernel (>= 6.13 < 6.14.7) • linux linux kernel 6.15

Related

Weakness · CWE (1)

References