CVE-2023-53396

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Source
https://cve.org/CVERecord?id=CVE-2023-53396
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53396.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-53396
Downstream
BELL (1)
DEBIAN (1)
SUSE (4)
UBUNTU (1)
Related
SUSE (4)
Published
2025-09-18T13:33:37Z
Modified
2026-10-20T10:30:22Z
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: Fix memory leak in do_rename
Details

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

ubifs: Fix memory leak in do_rename

If renaming a file in an encrypted directory, function fscrypt_setup_filename allocates memory for a file name. This name is never used, and before returning to the caller the memory for it 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 'rename' that renames a file in an encrypted directory:

unreferenced object 0xffff888101502840 (size 32): comm "rename", pid 9404, jiffies 4302582475 (age 435.735s) backtrace: __kmem_cache_alloc_node __kmalloc fscrypt_setup_filename do_rename ubifs_rename vfs_rename do_renameat2

To fix this we can remove the call to fscrypt_setup_filename as it's not needed.

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53396.json"
}
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
c67bc98d1f0853bb196e9c48eab38b6f2ddab795
Fixed
43b2f7d690697182beed6f71aa57b7249d3cfc9c
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
278d9a243635f26c05ad95dcf9c5a593b9e04dc6
Fixed
9f565752b328fe53c9e42b7d4e4d89a1da63d738
Fixed
7e264f67b7d6580eff5c2696961039fd05c69258
Fixed
517ddc0259d7a7231486bdafde8035c478bc4088
Fixed
3a36d20e012903f45714df2731261fdefac900cb
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
5.15.33
Fixed
5.15.112
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
5.16.19
Fixed
5.17
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
5.17.2
Fixed
5.18
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
17495eb2f7f08113b50aba298c2c1a045824c4f7
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
868de33a39e0e1e91ed3ce4a23a65f30144d2443

Affected versions

v5.*
v5.15.100
v5.15.101
v5.15.102
v5.15.103
v5.15.104
v5.15.105
v5.15.106
v5.15.107
v5.15.108
v5.15.109
v5.15.110
v5.15.111
v5.15.33
v5.15.34
v5.15.35
v5.15.36
v5.15.37
v5.15.38
v5.15.39
v5.15.40
v5.15.41
v5.15.42
v5.15.43
v5.15.44
v5.15.45
v5.15.46
v5.15.47
v5.15.48
v5.15.49
v5.15.50
v5.15.51
v5.15.52
v5.15.53
v5.15.54
v5.15.55
v5.15.56
v5.15.57
v5.15.58
v5.15.59
v5.15.60
v5.15.61
v5.15.62
v5.15.63
v5.15.64
v5.15.65
v5.15.66
v5.15.67
v5.15.68
v5.15.69
v5.15.70
v5.15.71
v5.15.72
v5.15.73
v5.15.74
v5.15.75
v5.15.76
v5.15.77
v5.15.78
v5.15.79
v5.15.80
v5.15.81
v5.15.82
v5.15.83
v5.15.84
v5.15.85
v5.15.86
v5.15.87
v5.15.88
v5.15.89
v5.15.90
v5.15.91
v5.15.92
v5.15.93
v5.15.94
v5.15.95
v5.15.96
v5.15.97
v5.15.98
v5.15.99
v5.16.19
v5.16.20
v5.17.10
v5.17.11
v5.17.12
v5.17.13
v5.17.14
v5.17.15
v5.17.2
v5.17.3
v5.17.4
v5.17.5
v5.17.6
v5.17.7
v5.17.8
v5.17.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53396.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.15.112
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.28
Type
ECOSYSTEM
Events
Introduced
5.18.0
Fixed
6.2.15
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.3.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53396.json"