CVE-2022-49030
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49030
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49030.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49030
- Downstream
- Published
- 2024-10-21T20:06:34.571Z
- Modified
- 2025-11-28T11:39:41.263340Z
- Summary
- libbpf: Handle size overflow for ringbuf mmap
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
libbpf: Handle size overflow for ringbuf mmap
The maximum size of ringbuf is 2GB on x86-64 host, so 2 * maxentries will overflow u32 when mapping producer page and data pages. Only casting maxentries to sizet is not enough, because for 32-bits application on 64-bits kernel the size of read-only mmap region also could overflow sizet.
So fixing it by casting the size of read-only mmap region into a __u64 and checking whether or not there will be overflow during mmap.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49030.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0140e079a42064680394fff1199a7b5483688dec
- https://git.kernel.org/stable/c/535a25ab4f9a45f74ba38ab71de95e97474922ed
- https://git.kernel.org/stable/c/8a549ab6724520aa3c07f47e0eba820293551490
- https://git.kernel.org/stable/c/927cbb478adf917e0a142b94baa37f06279cc466
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49030.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49030
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
-
Introducedbf99c936f9478a05d51e9f101f90de70bee9a89cFixed8a549ab6724520aa3c07f47e0eba820293551490Fixed0140e079a42064680394fff1199a7b5483688decFixed535a25ab4f9a45f74ba38ab71de95e97474922edFixed927cbb478adf917e0a142b94baa37f06279cc466
Affected versions
v5.*
v5.10
v5.10-rc1
v5.10-rc2
v5.10-rc3
v5.10-rc4
v5.10-rc5
v5.10-rc6
v5.10-rc7
v5.10.1
v5.10.10
v5.10.100
v5.10.101
v5.10.102
v5.10.103
v5.10.104
v5.10.105
v5.10.106
v5.10.107
v5.10.108
v5.10.109
v5.10.11
v5.10.110
v5.10.111
v5.10.112
v5.10.113
v5.10.114
v5.10.115
v5.10.116
v5.10.117
v5.10.118
v5.10.119
v5.10.12
v5.10.120
v5.10.121
v5.10.122
v5.10.123
v5.10.124
v5.10.125
v5.10.126
v5.10.127
v5.10.128
v5.10.129
v5.10.13
v5.10.130
v5.10.131
v5.10.132
v5.10.133
v5.10.134
v5.10.135
v5.10.136
v5.10.137
v5.10.138
v5.10.139
v5.10.14
v5.10.140
v5.10.141
v5.10.142
v5.10.143
v5.10.144
v5.10.145
v5.10.146
v5.10.147
v5.10.148
v5.10.149
v5.10.15
v5.10.150
v5.10.151
v5.10.152
v5.10.153
v5.10.154
v5.10.155
v5.10.156
v5.10.157
v5.10.16
v5.10.17
v5.10.18
v5.10.19
v5.10.2
v5.10.20
v5.10.21
v5.10.22
v5.10.23
v5.10.24
v5.10.25
v5.10.26
v5.10.27
v5.10.28
v5.10.29
v5.10.3
v5.10.30
v5.10.31
v5.10.32
v5.10.33
v5.10.34
v5.10.35
v5.10.36
v5.10.37
v5.10.38
v5.10.39
v5.10.4
v5.10.40
v5.10.41
v5.10.42
v5.10.43
v5.10.44
v5.10.45
v5.10.46
v5.10.47
v5.10.48
v5.10.49
v5.10.5
v5.10.50
v5.10.51
v5.10.52
v5.10.53
v5.10.54
v5.10.55
v5.10.56
v5.10.57
v5.10.58
v5.10.59
v5.10.6
v5.10.60
v5.10.61
v5.10.62
v5.10.63
v5.10.64
v5.10.65
v5.10.66
v5.10.67
v5.10.68
v5.10.69
v5.10.7
v5.10.70
v5.10.71
v5.10.72
v5.10.73
v5.10.74
v5.10.75
v5.10.76
v5.10.77
v5.10.78
v5.10.79
v5.10.8
v5.10.80
v5.10.81
v5.10.82
v5.10.83
v5.10.84
v5.10.85
v5.10.86
v5.10.87
v5.10.88
v5.10.89
v5.10.9
v5.10.90
v5.10.91
v5.10.92
v5.10.93
v5.10.94
v5.10.95
v5.10.96
v5.10.97
v5.10.98
v5.10.99
v5.11
v5.11-rc1
v5.11-rc2
v5.11-rc3
v5.11-rc4
v5.11-rc5
v5.11-rc6
v5.11-rc7
v5.12
v5.12-rc1
v5.12-rc1-dontuse
v5.12-rc2
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
v5.15.11
v5.15.12
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
v5.15.9
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
v5.7
v5.8
v5.8-rc1
v5.8-rc2
v5.8-rc3
v5.8-rc4
v5.8-rc5
v5.8-rc6
v5.8-rc7
v5.9
v5.9-rc1
v5.9-rc2
v5.9-rc3
v5.9-rc4
v5.9-rc5
v5.9-rc6
v5.9-rc7
v5.9-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
v6.0.1
v6.0.10
v6.0.11
v6.0.2
v6.0.3
v6.0.4
v6.0.5
v6.0.6
v6.0.7
v6.0.8
v6.0.9
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
Database specific
vanir_signatures
[
{
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "tools/lib/bpf/ringbuf.c"
},
"digest": {
"line_hashes": [
"182041646045616935075848235808817900572",
"276683600360101321145863222240346408826",
"33649977801050699099361130284700725105",
"283627357449336340006601979964091912221",
"276317405728567544823796923615182929228",
"46777037936822841379590930563008198407",
"138311094736446075425802932985555985416",
"107637971047441962357732350238078909639",
"136499186092732013595400627348992744733",
"182704621375198694768512956647656748563",
"188085388368847728133562354076456569971",
"165067792517251921141928653244902384967",
"326785604433909825714773728980403031844",
"58577921407521784359618108709912564224"
],
"threshold": 0.9
},
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@8a549ab6724520aa3c07f47e0eba820293551490",
"id": "CVE-2022-49030-01ae9aea"
},
{
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "tools/lib/bpf/ringbuf.c"
},
"digest": {
"line_hashes": [
"182041646045616935075848235808817900572",
"276683600360101321145863222240346408826",
"33649977801050699099361130284700725105",
"283627357449336340006601979964091912221",
"276317405728567544823796923615182929228",
"46777037936822841379590930563008198407",
"138311094736446075425802932985555985416",
"107637971047441962357732350238078909639",
"136499186092732013595400627348992744733",
"182563691373873487976168251486197840338",
"188085388368847728133562354076456569971",
"165067792517251921141928653244902384967",
"326785604433909825714773728980403031844",
"58577921407521784359618108709912564224"
],
"threshold": 0.9
},
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@927cbb478adf917e0a142b94baa37f06279cc466",
"id": "CVE-2022-49030-14148458"
},
{
"signature_version": "v1",
"deprecated": false,
"target": {
"function": "ring_buffer__add",
"file": "tools/lib/bpf/ringbuf.c"
},
"digest": {
"function_hash": "33826064554763964099384641097249816004",
"length": 2133.0
},
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0140e079a42064680394fff1199a7b5483688dec",
"id": "CVE-2022-49030-1d854cd4"
},
{
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "tools/lib/bpf/ringbuf.c"
},
"digest": {
"line_hashes": [
"182041646045616935075848235808817900572",
"276683600360101321145863222240346408826",
"33649977801050699099361130284700725105",
"283627357449336340006601979964091912221",
"276317405728567544823796923615182929228",
"46777037936822841379590930563008198407",
"138311094736446075425802932985555985416",
"107637971047441962357732350238078909639",
"136499186092732013595400627348992744733",
"182563691373873487976168251486197840338",
"188085388368847728133562354076456569971",
"165067792517251921141928653244902384967",
"326785604433909825714773728980403031844",
"58577921407521784359618108709912564224"
],
"threshold": 0.9
},
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@535a25ab4f9a45f74ba38ab71de95e97474922ed",
"id": "CVE-2022-49030-3bf47977"
},
{
"signature_version": "v1",
"deprecated": false,
"target": {
"function": "ring_buffer__add",
"file": "tools/lib/bpf/ringbuf.c"
},
"digest": {
"function_hash": "33826064554763964099384641097249816004",
"length": 2133.0
},
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@927cbb478adf917e0a142b94baa37f06279cc466",
"id": "CVE-2022-49030-7521a21f"
},
{
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "tools/lib/bpf/ringbuf.c"
},
"digest": {
"line_hashes": [
"182041646045616935075848235808817900572",
"276683600360101321145863222240346408826",
"33649977801050699099361130284700725105",
"283627357449336340006601979964091912221",
"276317405728567544823796923615182929228",
"46777037936822841379590930563008198407",
"138311094736446075425802932985555985416",
"107637971047441962357732350238078909639",
"136499186092732013595400627348992744733",
"182563691373873487976168251486197840338",
"188085388368847728133562354076456569971",
"165067792517251921141928653244902384967",
"326785604433909825714773728980403031844",
"58577921407521784359618108709912564224"
],
"threshold": 0.9
},
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0140e079a42064680394fff1199a7b5483688dec",
"id": "CVE-2022-49030-93aee4b8"
},
{
"signature_version": "v1",
"deprecated": false,
"target": {
"function": "ring_buffer__add",
"file": "tools/lib/bpf/ringbuf.c"
},
"digest": {
"function_hash": "197102358432411747101383925349542786387",
"length": 2042.0
},
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@8a549ab6724520aa3c07f47e0eba820293551490",
"id": "CVE-2022-49030-9be886ac"
},
{
"signature_version": "v1",
"deprecated": false,
"target": {
"function": "ring_buffer__add",
"file": "tools/lib/bpf/ringbuf.c"
},
"digest": {
"function_hash": "33826064554763964099384641097249816004",
"length": 2133.0
},
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@535a25ab4f9a45f74ba38ab71de95e97474922ed",
"id": "CVE-2022-49030-eeaffccb"
}
]
source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49030.json"