CVE-2022-50036
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-50036
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50036.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-50036
- Downstream
- Related
- Published
- 2025-06-18T11:01:37Z
- Modified
- 2025-10-21T12:09:38.244441Z
- Summary
- drm/sun4i: dsi: Prevent underflow when computing packet sizes
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/sun4i: dsi: Prevent underflow when computing packet sizes
Currently, the packet overhead is subtracted using unsigned arithmetic. With a short sync pulse, this could underflow and wrap around to near the maximal u16 value. Fix this by using signed subtraction. The call to max() will correctly handle any negative numbers that are produced.
Apply the same fix to the other timings, even though those subtractions are less likely to underflow.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/82a1356a933d8443139f8886f11b63c974a09a67
- https://git.kernel.org/stable/c/98e28de472ef248352f04f87e29e634ebb0ec240
- https://git.kernel.org/stable/c/a1e7908f78f5a7f53f8cd83c7dcdfec974c95f26
- https://git.kernel.org/stable/c/fb837f5b83461624e525727a8f4add14b201147e
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
-
Introduced133add5b5ad42b7bb5fcd59d681aef6475d08600Fixeda1e7908f78f5a7f53f8cd83c7dcdfec974c95f26
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced133add5b5ad42b7bb5fcd59d681aef6475d08600Fixed98e28de472ef248352f04f87e29e634ebb0ec240
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced133add5b5ad42b7bb5fcd59d681aef6475d08600Fixedfb837f5b83461624e525727a8f4add14b201147e
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced133add5b5ad42b7bb5fcd59d681aef6475d08600Fixed82a1356a933d8443139f8886f11b63c974a09a67
Affected versions
v4.*
v4.16
v4.17
v4.17-rc1
v4.17-rc2
v4.17-rc3
v4.17-rc4
v4.17-rc5
v4.17-rc6
v4.17-rc7
v4.18
v4.18-rc1
v4.18-rc2
v4.18-rc3
v4.18-rc4
v4.18-rc5
v4.18-rc6
v4.18-rc7
v4.18-rc8
v4.19
v4.19-rc1
v4.19-rc2
v4.19-rc3
v4.19-rc4
v4.19-rc5
v4.19-rc6
v4.19-rc7
v4.19-rc8
v4.20
v4.20-rc1
v4.20-rc2
v4.20-rc3
v4.20-rc4
v4.20-rc5
v4.20-rc6
v4.20-rc7
v5.*
v5.0
v5.0-rc1
v5.0-rc2
v5.0-rc3
v5.0-rc4
v5.0-rc5
v5.0-rc6
v5.0-rc7
v5.0-rc8
v5.1
v5.1-rc1
v5.1-rc2
v5.1-rc3
v5.1-rc4
v5.1-rc5
v5.1-rc6
v5.1-rc7
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
v5.10.14
v5.10.15
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
v5.15.7
v5.15.8
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
v5.19.1
v5.19.2
v5.19.3
v5.2
v5.2-rc1
v5.2-rc2
v5.2-rc3
v5.2-rc4
v5.2-rc5
v5.2-rc6
v5.2-rc7
v5.3
v5.3-rc1
v5.3-rc2
v5.3-rc3
v5.3-rc4
v5.3-rc5
v5.3-rc6
v5.3-rc7
v5.3-rc8
v5.4
v5.4-rc1
v5.4-rc2
v5.4-rc3
v5.4-rc4
v5.4-rc5
v5.4-rc6
v5.4-rc7
v5.4-rc8
v5.5
v5.5-rc1
v5.5-rc2
v5.5-rc3
v5.5-rc4
v5.5-rc5
v5.5-rc6
v5.5-rc7
v5.6
v5.6-rc1
v5.6-rc2
v5.6-rc3
v5.6-rc4
v5.6-rc5
v5.6-rc6
v5.6-rc7
v5.7
v5.7-rc1
v5.7-rc2
v5.7-rc3
v5.7-rc4
v5.7-rc5
v5.7-rc6
v5.7-rc7
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
Database specific
vanir_signatures
[
{
"signature_type": "Function",
"digest": {
"function_hash": "48627143930379132078246440537978942039",
"length": 2963.0
},
"target": {
"file": "drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c",
"function": "sun6i_dsi_setup_timings"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@82a1356a933d8443139f8886f11b63c974a09a67",
"id": "CVE-2022-50036-291d0961",
"deprecated": false,
"signature_version": "v1"
},
{
"signature_type": "Function",
"digest": {
"function_hash": "48627143930379132078246440537978942039",
"length": 2963.0
},
"target": {
"file": "drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c",
"function": "sun6i_dsi_setup_timings"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@fb837f5b83461624e525727a8f4add14b201147e",
"id": "CVE-2022-50036-2e14ee3d",
"deprecated": false,
"signature_version": "v1"
},
{
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"151393060087333914624769007072546335555",
"288451596861008838228873727207148642468",
"100148706314762039605685978518044799303",
"144290280337545015300350348672368230864",
"206412878240976955458329594350098032909",
"94563631576860241658520901626453602285",
"177416184805598422761267236105261424013",
"224200439382998516618623916162098800331",
"210741802751315662665315780089150715614",
"22755241025841170642370564597355787451",
"123972977186393195967496582570248374972",
"139227596911426136802795483626228955397",
"196284344713681598670853775930583780226",
"16644823937633031068198851791008051787"
]
},
"target": {
"file": "drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@a1e7908f78f5a7f53f8cd83c7dcdfec974c95f26",
"id": "CVE-2022-50036-483ff9d5",
"deprecated": false,
"signature_version": "v1"
},
{
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"151393060087333914624769007072546335555",
"288451596861008838228873727207148642468",
"100148706314762039605685978518044799303",
"144290280337545015300350348672368230864",
"206412878240976955458329594350098032909",
"94563631576860241658520901626453602285",
"177416184805598422761267236105261424013",
"224200439382998516618623916162098800331",
"210741802751315662665315780089150715614",
"22755241025841170642370564597355787451",
"123972977186393195967496582570248374972",
"139227596911426136802795483626228955397",
"196284344713681598670853775930583780226",
"16644823937633031068198851791008051787"
]
},
"target": {
"file": "drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@82a1356a933d8443139f8886f11b63c974a09a67",
"id": "CVE-2022-50036-494f49c3",
"deprecated": false,
"signature_version": "v1"
},
{
"signature_type": "Function",
"digest": {
"function_hash": "48627143930379132078246440537978942039",
"length": 2963.0
},
"target": {
"file": "drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c",
"function": "sun6i_dsi_setup_timings"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@98e28de472ef248352f04f87e29e634ebb0ec240",
"id": "CVE-2022-50036-506ffd16",
"deprecated": false,
"signature_version": "v1"
},
{
"signature_type": "Function",
"digest": {
"function_hash": "48627143930379132078246440537978942039",
"length": 2963.0
},
"target": {
"file": "drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c",
"function": "sun6i_dsi_setup_timings"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@a1e7908f78f5a7f53f8cd83c7dcdfec974c95f26",
"id": "CVE-2022-50036-669b4811",
"deprecated": false,
"signature_version": "v1"
},
{
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"151393060087333914624769007072546335555",
"288451596861008838228873727207148642468",
"100148706314762039605685978518044799303",
"144290280337545015300350348672368230864",
"206412878240976955458329594350098032909",
"94563631576860241658520901626453602285",
"177416184805598422761267236105261424013",
"224200439382998516618623916162098800331",
"210741802751315662665315780089150715614",
"22755241025841170642370564597355787451",
"123972977186393195967496582570248374972",
"139227596911426136802795483626228955397",
"196284344713681598670853775930583780226",
"16644823937633031068198851791008051787"
]
},
"target": {
"file": "drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@fb837f5b83461624e525727a8f4add14b201147e",
"id": "CVE-2022-50036-9fa7498c",
"deprecated": false,
"signature_version": "v1"
},
{
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"151393060087333914624769007072546335555",
"288451596861008838228873727207148642468",
"100148706314762039605685978518044799303",
"144290280337545015300350348672368230864",
"206412878240976955458329594350098032909",
"94563631576860241658520901626453602285",
"177416184805598422761267236105261424013",
"224200439382998516618623916162098800331",
"210741802751315662665315780089150715614",
"22755241025841170642370564597355787451",
"123972977186393195967496582570248374972",
"139227596911426136802795483626228955397",
"196284344713681598670853775930583780226",
"16644823937633031068198851791008051787"
]
},
"target": {
"file": "drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@98e28de472ef248352f04f87e29e634ebb0ec240",
"id": "CVE-2022-50036-dccfba0f",
"deprecated": false,
"signature_version": "v1"
}
]