Vulnerability Monitor

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CVE-2025-38247

In the Linux kernel, the following vulnerability has been resolved: userns and mnt_idmap leak in open_tree_attr(2) Once want_mount_setattr() has returned a positive, it does require finish_mount_kattr() to release ->mnt_userns. Failing do_mount_setattr() does not change that. As the result, we can end up leaking userns and possibly mnt_idmap as well.

Published

2025-07-09T11:15:26.847

Last Modified

2025-11-19T21:01:49.597

Status

Analyzed

Source

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Severity

CVSSv3.1: 5.5 (MEDIUM)

Weaknesses
  • Type: Primary
    NVD-CWE-noinfo
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel < 6.15.5 Yes
Operating System linux linux_kernel 6.16 Yes
Operating System linux linux_kernel 6.16 Yes
Operating System linux linux_kernel 6.16 Yes
References