CVE-2023-53097

powerpc/iommu: fix memory leak with using debugfs_lookup()

MEDIUM

5.5

CVSS Score

Published: May 2, 2025 at 03:55 PM UTC

Updated: June 17, 2026 at 06:44 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: powerpc/iommu: fix memory leak with using debugfs_lookup() When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfs_lookup_and_remove() instead which handles all of the logic at once.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v < 5.15.1035.12 ≤ v < 5.15.1035.12 ≤ v < 6.1.205.12 ≤ v < 6.2.75.12 ≤ v < 6.35.16 ≤ v < 6.1.206.2 ≤ v < 6.2.75.12691602aab9c3cce31d3ff9529c09b7922a5f6224

Vendor states this is fixed in 24c1bd1cd0d1ff821fd7d2f01a1e648c7882dfc2 (fixed)

Vendor states this is fixed in 4050498c0ae3946c223fc63e9dd7b878b76611e0 (fixed)

Vendor states this is fixed in b505063910c134778202dfad9332dfcecb76bab3 (fixed)

Vendor states this is fixed in e3a62a35f903fd8be5b44542fe3901ec45f16757 (fixed)

Vendor states this is fixed in 5.12 (unaffected)

Vendor states this is fixed in 5.15.103 (unaffected)

Vendor states this is fixed in 6.1.20 (unaffected)

Vendor states this is fixed in 6.2.7 (unaffected)

Vendor states this is fixed in 6.3 (unaffected)