CVE-2023-53276

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Source
https://cve.org/CVERecord?id=CVE-2023-53276
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53276.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-53276
Downstream
Related
Published
2025-09-16T08:11:11.328Z
Modified
2026-04-02T09:43:54.796786Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
ubifs: Free memory for tmpfile name
Details

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

ubifs: Free memory for tmpfile name

When opening a ubifs tmpfile on an encrypted directory, function fscryptsetupfilename allocates memory for the name that is to be stored in the directory entry, but after the name has been copied to the directory entry inode, the memory is not freed.

When running kmemleak on it we see that it is registered as a leak. The report below is triggered by a simple program 'tmpfile' just opening a tmpfile:

unreferenced object 0xffff88810178f380 (size 32): comm "tmpfile", pid 509, jiffies 4294934744 (age 1524.742s) backtrace: __kmemcachealloc_node _kmalloc fscryptsetupfilename ubifstmpfile vfstmpfile pathopenat

Free this memory after it has been copied to the inode.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53276.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
f4f61d2cc6d8789a52245a4733b3e5643be154f3
Fixed
8ad8c67a897e68426e85990ebfe0a7d1f71fc79f
Fixed
107d481642c356a5668058066360fc473911e628
Fixed
823f554747f8aafaa965fb2f3ae794110ed429ef
Fixed
b8f444a4fadfb5070ed7e298e0a5ceb4a18014f3
Fixed
ce840284929b75dbbf062e0ce7fcb78a63b08b5e
Fixed
29738e1bcc799dd754711d4e4aab967f0c018175
Fixed
fd197308c0e4f738c7ea687d5332035c5753881c
Fixed
1e43d4284bdc3bd34bd770fea13910ac37ab0618
Fixed
1fb815b38bb31d6af9bd0540b8652a0d6fe6cfd3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53276.json"