CVE-2023-53359

USB: fix memory leak with using debugfs_lookup()

MEDIUM
5.5
CVSS Score
Published: September 17, 2025 at 02:56 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%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: USB: 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.

v < 5.15.1005.13 ≤ v < 5.15.1005.13 ≤ v < 6.1.185.13 ≤ v < 6.2.55.13 ≤ v < 6.35.16 ≤ v < 6.1.186.2 ≤ v < 6.2.55.139c174b57c98e78310a15cf9808cf417fa4a65d9b
Vendor states this is fixed in 30374434edab20e25776f8ecb4bc9d1e54309487 (fixed)
Vendor states this is fixed in 6683327b51a601daba32900072349dfa1d4e8fea (fixed)
Vendor states this is fixed in c68ece7baf2aa9783b8244482c03010d477d4a93 (fixed)
Vendor states this is fixed in cc00340fb1226a2a3a5cf15473ac417da3c952f1 (fixed)
Vendor states this is fixed in 5.13 (unaffected)
Vendor states this is fixed in 5.15.100 (unaffected)
Vendor states this is fixed in 6.1.18 (unaffected)
Vendor states this is fixed in 6.2.5 (unaffected)
Vendor states this is fixed in 6.3 (unaffected)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-401

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