CVE-2023-53662

See a problem?
Please try reporting it to the source first.

Source

https://cve.org/CVERecord?id=CVE-2023-53662

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53662.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2023-53662

Downstream

BELL-CVE-2023-53662

DEBIAN-CVE-2023-53662

RHSA-2024:9315

ROOT-OS-UBUNTU-2204-CVE-2023-53662

SUSE-SU-2025:4057-1

SUSE-SU-2025:4128-1

SUSE-SU-2025:4132-1

SUSE-SU-2025:4301-1

SUSE-SU-2025:4320-1

UBUNTU-CVE-2023-53662

Related

Published

2025-10-07T15:21:21.703Z

Modified

2026-02-24T16:01:24.315202Z

Summary

ext4: fix memory leaks in ext4_fname_{setup_filename,prepare_lookup}

Details

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

ext4: fix memory leaks in ext4fname{setupfilename,preparelookup}

If the filename casefolding fails, we'll be leaking memory from the fscryptname struct, namely from the 'cryptobuf.name' member.

Make sure we free it in the error path on both ext4fnamesetupfilename() and ext4fnamepreparelookup() functions.

Database specific

{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53662.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

1ae98e295fa2577fb5e492200c58d10230e00e99

Fixed

98fc9c2cc45cfcb56961a73de3ec69b474063fc0

Fixed

1fb3f1bbfdb511034b0360dbeb0f6a8424ed2a5c

Fixed

36daf050be3f6f067631dc52054de2d3b7cc849f

Fixed

7ca4b085f430f3774c3838b3da569ceccd6a0177

Affected versions

v5.*

v5.12

v5.12-rc5

v5.12-rc6

v5.12-rc7

v5.12-rc8

v5.13

v5.13-rc1

v5.13-rc2

v5.13-rc3

v5.13-rc4

v5.13-rc5

v5.13-rc6

v5.13-rc7

v5.14

v5.14-rc1

v5.14-rc2

v5.14-rc3

v5.14-rc4

v5.14-rc5

v5.14-rc6

v5.14-rc7

v5.15

v5.15-rc1

v5.15-rc2

v5.15-rc3

v5.15-rc4

v5.15-rc5

v5.15-rc6

v5.15-rc7

v5.15.1

v5.15.10

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

v5.15.11

v5.15.110

v5.15.111

v5.15.112

v5.15.113

v5.15.114

v5.15.115

v5.15.116

v5.15.117

v5.15.118

v5.15.119

v5.15.12

v5.15.120

v5.15.121

v5.15.122

v5.15.123

v5.15.124

v5.15.125

v5.15.126

v5.15.127

v5.15.128

v5.15.129

v5.15.13

v5.15.130

v5.15.131

v5.15.132

v5.15.133

v5.15.134

v5.15.135

v5.15.136

v5.15.137

v5.15.138

v5.15.139

v5.15.14

v5.15.140

v5.15.141

v5.15.142

v5.15.143

v5.15.144

v5.15.145

v5.15.146

v5.15.147

v5.15.148

v5.15.149

v5.15.15

v5.15.150

v5.15.151

v5.15.152

v5.15.153

v5.15.154

v5.15.155

v5.15.156

v5.15.157

v5.15.158

v5.15.159

v5.15.16

v5.15.160

v5.15.161

v5.15.162

v5.15.163

v5.15.164

v5.15.165

v5.15.166

v5.15.167

v5.15.168

v5.15.169

v5.15.17

v5.15.170

v5.15.171

v5.15.172

v5.15.173

v5.15.174

v5.15.175

v5.15.176

v5.15.177

v5.15.178

v5.15.179

v5.15.18

v5.15.180

v5.15.181

v5.15.182

v5.15.183

v5.15.184

v5.15.185

v5.15.186

v5.15.187

v5.15.188

v5.15.189

v5.15.19

v5.15.190

v5.15.191

v5.15.192

v5.15.193

v5.15.194

v5.15.195

v5.15.196

v5.15.197

v5.15.198

v5.15.2

v5.15.20

v5.15.21

v5.15.22

v5.15.23

v5.15.24

v5.15.25

v5.15.26

v5.15.27

v5.15.28

v5.15.29

v5.15.3

v5.15.30

v5.15.31

v5.15.32

v5.15.33

v5.15.34

v5.15.35

v5.15.36

v5.15.37

v5.15.38

v5.15.39

v5.15.4

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

v5.15.5

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

v5.15.6

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

v5.15.7

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

v5.15.8

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

v5.15.9

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

v5.16-rc1

v5.16-rc2

v5.16-rc3

v5.16-rc4

v5.16-rc5

v5.16-rc6

v5.16-rc7

v5.16-rc8

v5.17

v5.17-rc1

v5.17-rc2

v5.17-rc3

v5.17-rc4

v5.17-rc5

v5.17-rc6

v5.17-rc7

v5.17-rc8

v5.18

v5.18-rc1

v5.18-rc2

v5.18-rc3

v5.18-rc4

v5.18-rc5

v5.18-rc6

v5.18-rc7

v5.19

v5.19-rc1

v5.19-rc2

v5.19-rc3

v5.19-rc4

v5.19-rc5

v5.19-rc6

v5.19-rc7

v5.19-rc8

v6.*

v6.0

v6.0-rc1

v6.0-rc2

v6.0-rc3

v6.0-rc4

v6.0-rc5

v6.0-rc6

v6.0-rc7

v6.1

v6.1-rc1

v6.1-rc2

v6.1-rc3

v6.1-rc4

v6.1-rc5

v6.1-rc6

v6.1-rc7

v6.1-rc8

v6.1.1

v6.1.10

v6.1.11

v6.1.12

v6.1.13

v6.1.14

v6.1.15

v6.1.16

v6.1.17

v6.1.18

v6.1.19

v6.1.2

v6.1.20

v6.1.21

v6.1.22

v6.1.23

v6.1.24

v6.1.25

v6.1.26

v6.1.27

v6.1.28

v6.1.29

v6.1.3

v6.1.30

v6.1.31

v6.1.32

v6.1.33

v6.1.34

v6.1.35

v6.1.36

v6.1.37

v6.1.38

v6.1.39

v6.1.4

v6.1.40

v6.1.41

v6.1.42

v6.1.43

v6.1.44

v6.1.45

v6.1.46

v6.1.47

v6.1.48

v6.1.49

v6.1.5

v6.1.50

v6.1.51

v6.1.52

v6.1.53

v6.1.6

v6.1.7

v6.1.8

v6.1.9

v6.2

v6.2-rc1

v6.2-rc2

v6.2-rc3

v6.2-rc4

v6.2-rc5

v6.2-rc6

v6.2-rc7

v6.2-rc8

v6.3

v6.3-rc1

v6.3-rc2

v6.3-rc3

v6.3-rc4

v6.3-rc5

v6.3-rc6

v6.3-rc7

v6.4

v6.4-rc1

v6.4-rc2

v6.4-rc3

v6.4-rc4

v6.4-rc5

v6.4-rc6

v6.4-rc7

v6.5

v6.5-rc1

v6.5-rc2

v6.5-rc3

v6.5-rc4

v6.5-rc5

v6.5-rc6

v6.5-rc7

v6.5.1

v6.5.2

v6.5.3

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53662.json"

vanir_signatures

[
    {
        "id": "CVE-2023-53662-10c76c54",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "234303864672784226971590459716826136905",
                "79141283492475713285036908647390665632",
                "242851236505122630731362097885262176098",
                "68710739092997693461305861623660373007",
                "5410772503608436394162142844241921556",
                "28915328766742558729032341743665346501",
                "206550691744661000703793946982390120670",
                "239502242531410848545231001112051635420"
            ]
        },
        "signature_type": "Line",
        "target": {
            "file": "fs/ext4/crypto.c"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@36daf050be3f6f067631dc52054de2d3b7cc849f",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53662-134f671c",
        "digest": {
            "length": 296.0,
            "function_hash": "145148978999904435393535543471145434090"
        },
        "signature_type": "Function",
        "target": {
            "file": "fs/ext4/crypto.c",
            "function": "ext4_fname_prepare_lookup"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1fb3f1bbfdb511034b0360dbeb0f6a8424ed2a5c",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53662-1823f66b",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "322582870873617482983180514108305262454",
                "281623265029263378743346859977595728423",
                "256168113446180340434238929941655510517",
                "16593946042948398353580663946261962631",
                "203969910009578419829235986129889764440",
                "147909387926630636096167674942840473648",
                "68710739092997693461305861623660373007",
                "288175849806678577732257323221791050315",
                "103467592038631616738883681833005675669",
                "52497949411892226779105933365551638514",
                "239502242531410848545231001112051635420",
                "194516624229297601096950103424168878627",
                "64087862026793872470487681829476254595",
                "110341873649823637460500152568202418319",
                "153485131122516621750982153543055037664",
                "176193987654513903071422335397036457903",
                "323014759631891025299056494666300202835",
                "48975440476624109402541739828273135101",
                "118442014172947492262232328443618706703",
                "98087185861174448336878330137382081206",
                "243447165651560211270381987389037286590",
                "113335823793980052166469526920800433594",
                "27996277295875321020974752104232207964",
                "159397571535428590229301229096155759611",
                "268855580647909651760626925698237326094",
                "139135466645133446603331828983872315276",
                "41724371926628434517426376839767907166"
            ]
        },
        "signature_type": "Line",
        "target": {
            "file": "fs/ext4/ext4.h"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@98fc9c2cc45cfcb56961a73de3ec69b474063fc0",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53662-1bba13ae",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "234303864672784226971590459716826136905",
                "79141283492475713285036908647390665632",
                "242851236505122630731362097885262176098",
                "68710739092997693461305861623660373007",
                "5410772503608436394162142844241921556",
                "28915328766742558729032341743665346501",
                "206550691744661000703793946982390120670",
                "239502242531410848545231001112051635420"
            ]
        },
        "signature_type": "Line",
        "target": {
            "file": "fs/ext4/crypto.c"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1fb3f1bbfdb511034b0360dbeb0f6a8424ed2a5c",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53662-3635752d",
        "digest": {
            "length": 301.0,
            "function_hash": "65324245118331055337228049745484980027"
        },
        "signature_type": "Function",
        "target": {
            "file": "fs/ext4/ext4.h",
            "function": "ext4_fname_prepare_lookup"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@98fc9c2cc45cfcb56961a73de3ec69b474063fc0",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53662-5be522f4",
        "digest": {
            "length": 296.0,
            "function_hash": "145148978999904435393535543471145434090"
        },
        "signature_type": "Function",
        "target": {
            "file": "fs/ext4/crypto.c",
            "function": "ext4_fname_prepare_lookup"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@7ca4b085f430f3774c3838b3da569ceccd6a0177",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53662-5d2001e6",
        "digest": {
            "length": 312.0,
            "function_hash": "287385201824056926180607956719746711583"
        },
        "signature_type": "Function",
        "target": {
            "file": "fs/ext4/crypto.c",
            "function": "ext4_fname_setup_filename"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@7ca4b085f430f3774c3838b3da569ceccd6a0177",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53662-5f61c866",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "234303864672784226971590459716826136905",
                "79141283492475713285036908647390665632",
                "242851236505122630731362097885262176098",
                "68710739092997693461305861623660373007",
                "5410772503608436394162142844241921556",
                "28915328766742558729032341743665346501",
                "206550691744661000703793946982390120670",
                "239502242531410848545231001112051635420"
            ]
        },
        "signature_type": "Line",
        "target": {
            "file": "fs/ext4/crypto.c"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@7ca4b085f430f3774c3838b3da569ceccd6a0177",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53662-8982eb3c",
        "digest": {
            "length": 296.0,
            "function_hash": "145148978999904435393535543471145434090"
        },
        "signature_type": "Function",
        "target": {
            "file": "fs/ext4/crypto.c",
            "function": "ext4_fname_prepare_lookup"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@36daf050be3f6f067631dc52054de2d3b7cc849f",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53662-a443366b",
        "digest": {
            "length": 317.0,
            "function_hash": "34765375957789218999938795559987837394"
        },
        "signature_type": "Function",
        "target": {
            "file": "fs/ext4/ext4.h",
            "function": "ext4_fname_setup_filename"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@98fc9c2cc45cfcb56961a73de3ec69b474063fc0",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53662-d850305b",
        "digest": {
            "length": 312.0,
            "function_hash": "287385201824056926180607956719746711583"
        },
        "signature_type": "Function",
        "target": {
            "file": "fs/ext4/crypto.c",
            "function": "ext4_fname_setup_filename"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1fb3f1bbfdb511034b0360dbeb0f6a8424ed2a5c",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53662-e595c139",
        "digest": {
            "length": 312.0,
            "function_hash": "287385201824056926180607956719746711583"
        },
        "signature_type": "Function",
        "target": {
            "file": "fs/ext4/crypto.c",
            "function": "ext4_fname_setup_filename"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@36daf050be3f6f067631dc52054de2d3b7cc849f",
        "deprecated": false
    }
]

Git / github.com/gregkh/linux