CVE-2015-4176
kernel: deletion of a file or directory could unmount and reveal data under a mount point.
Severity
ModerateRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · May 6, 2015
Updated · November 21, 2025
Description
A flaw was found in the Linux kernel where the deletion of a file or directory could trigger an unmount and reveal data under a mount point. This flaw was inadvertently introduced with the new feature of being able to lazily unmount a mount tree when using file system user namespaces.
Statement
Not vulnerable. This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 4.9AV:L/AC:L/Au:N/C:C/I:N/A:N
CWE-667 · Improper Locking