trace/blktrace: fix memory leak with using debugfs_lookup()
In the Linux kernel, the following vulnerability has been resolved: trace/blktrace: 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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.15.99, 6.1.16, 6.2.3
- CVEs
- CVE-2023-53408
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 15:45 UTC · Revision 1
Source evidence
trace/blktrace: fix memory leak with using debugfs_lookup()
core-osv · Original sourcePublished 18 Sept 2025, 13:58 UTC
In the Linux kernel, the following vulnerability has been resolved: trace/blktrace: 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.
osv:CVE-2023-53408
Kernel
Fixed versions: 5.15.99, 6.1.16, 6.2.3
Complete source record
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"summary": "In the Linux kernel, the following vulnerability has been resolved: trace/blktrace: 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.",
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"modified": "2026-10-28T02:30:30.085470153Z",
"provider": "osv",
"references": [
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"https://nvd.nist.gov/vuln/detail/CVE-2023-53408",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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"source_id": "core-osv",
"document_id": 496934,
"published_at": "2025-09-18T13:58:46.767+00:00"
}