Bug 2396461 (CVE-2023-53416)

Summary: CVE-2023-53416 kernel: Linux kernel: Memory leak in USB ISP1362 driver causes Denial of Service
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedKeywords: Security
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in the Linux kernel's USB ISP1362 driver. A local user could exploit this memory leak vulnerability by repeatedly calling `debugfs_lookup()` without properly releasing the allocated memory. This oversight leads to a gradual depletion of system memory, which can result in a Denial of Service (DoS) condition.
 Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2025-09-18 15:02:23 UTC 
In the Linux kernel, the following vulnerability has been resolved:

USB: isp1362: 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.
Comment 1 Keith Grant 2025-09-18 17:57:11 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091802-CVE-2023-53416-a008@gregkh/T