CVE-2023-53205
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-53205
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53205.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-53205
- Downstream
- Related
- Published
- 2025-09-15T14:21:33Z
- Modified
- 2025-10-21T16:14:23.631782Z
- Summary
- KVM: s390/diag: fix racy access of physical cpu number in diag 9c handler
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
KVM: s390/diag: fix racy access of physical cpu number in diag 9c handler
We do check for target CPU == -1, but this might change at the time we are going to use it. Hold the physical target CPU in a local variable to avoid out-of-bound accesses to the cpu arrays.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0bc380beb78aa352eadbc21d934dd9606fcee808
- https://git.kernel.org/stable/c/86bfb18bad60fc468e5f112cbbd918462a8dd435
- https://git.kernel.org/stable/c/a9ccf140a2a03a0ae82be4bdfbdd17bdaea72ff5
- https://git.kernel.org/stable/c/dc7e0192c470a53d847c79a2796f9ac429477a26
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
-
Introduced87e28a15c42cc592009c32a8c20e5789059027c2Fixeda9ccf140a2a03a0ae82be4bdfbdd17bdaea72ff5
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced87e28a15c42cc592009c32a8c20e5789059027c2Fixed86bfb18bad60fc468e5f112cbbd918462a8dd435
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced87e28a15c42cc592009c32a8c20e5789059027c2Fixeddc7e0192c470a53d847c79a2796f9ac429477a26
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced87e28a15c42cc592009c32a8c20e5789059027c2Fixed0bc380beb78aa352eadbc21d934dd9606fcee808
Affected versions
v5.*
v5.12
v5.12-rc3
v5.12-rc4
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
v5.15.13
v5.15.14
v5.15.15
v5.15.16
v5.15.17
v5.15.18
v5.15.19
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
v6.1.4
v6.1.5
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
v6.4.1
v6.4.2
v6.4.3
Database specific
vanir_signatures
[
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@86bfb18bad60fc468e5f112cbbd918462a8dd435",
"target": {
"file": "arch/s390/kvm/diag.c"
},
"deprecated": false,
"id": "CVE-2023-53205-0f10f999",
"signature_version": "v1",
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"40895643546851796321472317572819607626",
"90221185251825903586892848896837342979",
"81881294508838859390094945366779147902",
"290849575073180236548685940903994425101",
"45962620953650691265038045170978612955",
"290773450668200456354818213749000238168",
"262411194209895761941814907146349520668",
"47020779011116696552376392262396906729",
"327898761146386071306689610469758429256",
"130114887335844684209461690534472901720",
"325339090689244864969342250365459757529",
"169565841580193679966040976942368339692",
"120705064696155170603930190338195075404"
]
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0bc380beb78aa352eadbc21d934dd9606fcee808",
"target": {
"function": "__diag_time_slice_end_directed",
"file": "arch/s390/kvm/diag.c"
},
"deprecated": false,
"id": "CVE-2023-53205-21579e69",
"signature_version": "v1",
"signature_type": "Function",
"digest": {
"length": 905.0,
"function_hash": "150019057763516446064507019226876062570"
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@dc7e0192c470a53d847c79a2796f9ac429477a26",
"target": {
"file": "arch/s390/kvm/diag.c"
},
"deprecated": false,
"id": "CVE-2023-53205-59f1b615",
"signature_version": "v1",
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"40895643546851796321472317572819607626",
"90221185251825903586892848896837342979",
"81881294508838859390094945366779147902",
"290849575073180236548685940903994425101",
"45962620953650691265038045170978612955",
"290773450668200456354818213749000238168",
"262411194209895761941814907146349520668",
"47020779011116696552376392262396906729",
"327898761146386071306689610469758429256",
"130114887335844684209461690534472901720",
"325339090689244864969342250365459757529",
"169565841580193679966040976942368339692",
"120705064696155170603930190338195075404"
]
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@dc7e0192c470a53d847c79a2796f9ac429477a26",
"target": {
"function": "__diag_time_slice_end_directed",
"file": "arch/s390/kvm/diag.c"
},
"deprecated": false,
"id": "CVE-2023-53205-73779f7b",
"signature_version": "v1",
"signature_type": "Function",
"digest": {
"length": 905.0,
"function_hash": "150019057763516446064507019226876062570"
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@a9ccf140a2a03a0ae82be4bdfbdd17bdaea72ff5",
"target": {
"function": "__diag_time_slice_end_directed",
"file": "arch/s390/kvm/diag.c"
},
"deprecated": false,
"id": "CVE-2023-53205-77c833a2",
"signature_version": "v1",
"signature_type": "Function",
"digest": {
"length": 905.0,
"function_hash": "150019057763516446064507019226876062570"
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@a9ccf140a2a03a0ae82be4bdfbdd17bdaea72ff5",
"target": {
"file": "arch/s390/kvm/diag.c"
},
"deprecated": false,
"id": "CVE-2023-53205-81128a11",
"signature_version": "v1",
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"40895643546851796321472317572819607626",
"90221185251825903586892848896837342979",
"81881294508838859390094945366779147902",
"290849575073180236548685940903994425101",
"45962620953650691265038045170978612955",
"290773450668200456354818213749000238168",
"262411194209895761941814907146349520668",
"47020779011116696552376392262396906729",
"327898761146386071306689610469758429256",
"130114887335844684209461690534472901720",
"325339090689244864969342250365459757529",
"169565841580193679966040976942368339692",
"120705064696155170603930190338195075404"
]
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@86bfb18bad60fc468e5f112cbbd918462a8dd435",
"target": {
"function": "__diag_time_slice_end_directed",
"file": "arch/s390/kvm/diag.c"
},
"deprecated": false,
"id": "CVE-2023-53205-e985fd08",
"signature_version": "v1",
"signature_type": "Function",
"digest": {
"length": 905.0,
"function_hash": "150019057763516446064507019226876062570"
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0bc380beb78aa352eadbc21d934dd9606fcee808",
"target": {
"file": "arch/s390/kvm/diag.c"
},
"deprecated": false,
"id": "CVE-2023-53205-f80a1da3",
"signature_version": "v1",
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"40895643546851796321472317572819607626",
"90221185251825903586892848896837342979",
"81881294508838859390094945366779147902",
"290849575073180236548685940903994425101",
"45962620953650691265038045170978612955",
"290773450668200456354818213749000238168",
"262411194209895761941814907146349520668",
"47020779011116696552376392262396906729",
"327898761146386071306689610469758429256",
"130114887335844684209461690534472901720",
"325339090689244864969342250365459757529",
"169565841580193679966040976942368339692",
"120705064696155170603930190338195075404"
]
}
}
]