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vuln-cve/data/2024/49xxx/CVE-2024-49920.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2024-49920",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2024-10-21T12:17:06.034Z",
"datePublished": "2024-10-21T18:01:46.437Z",
"dateUpdated": "2026-10-30T12:19:38.272Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-10-30T12:19:38.272Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Check null pointers before multiple uses\n\n[WHAT & HOW]\nPoniters, such as stream_enc and dc->bw_vbios, are null checked previously\nin the same function, so Coverity warns \"implies that stream_enc and\ndc->bw_vbios might be null\". They are used multiple times in the\nsubsequent code and need to be checked.\n\nThis fixes 10 FORWARD_NULL issues reported by Coverity."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c",
"drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c",
"drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c",
"drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_dio.c",
"drivers/gpu/drm/amd/display/dc/resource/dce112/dce112_resource.c",
"drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c",
"drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource_helpers.c"
],
"versions": [
{
"version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
"lessThan": "7dc67992b35bc11895149b4261c4ad745312a18d",
"status": "affected",
"versionType": "git"
},
{
"version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
"lessThan": "4f51f6d23c5856f105110531f81d84e78e462005",
"status": "affected",
"versionType": "git"
},
{
"version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
"lessThan": "26787fb6c2b2ee0d1a7e1574b36f4711ae40fe27",
"status": "affected",
"versionType": "git"
},
{
"version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
"lessThan": "fdd5ecbbff751c3b9061d8ebb08e5c96119915b4",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c",
"drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c",
"drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c",
"drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_dio.c",
"drivers/gpu/drm/amd/display/dc/resource/dce112/dce112_resource.c",
"drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c",
"drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource_helpers.c"
],
"versions": [
{
"version": "4.15",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.15",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.191",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.160",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.11.3",
"lessThanOrEqual": "6.11.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.15",
"versionEndExcluding": "6.1.191"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.15",
"versionEndExcluding": "6.6.160"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.15",
"versionEndExcluding": "6.11.3"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.15",
"versionEndExcluding": "6.12"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/7dc67992b35bc11895149b4261c4ad745312a18d"
},
{
"url": "https://git.kernel.org/stable/c/4f51f6d23c5856f105110531f81d84e78e462005"
},
{
"url": "https://git.kernel.org/stable/c/26787fb6c2b2ee0d1a7e1574b36f4711ae40fe27"
},
{
"url": "https://git.kernel.org/stable/c/fdd5ecbbff751c3b9061d8ebb08e5c96119915b4"
}
],
"title": "drm/amd/display: Check null pointers before multiple uses",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2024-49920",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-10-22T13:40:29.310714Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2024-10-22T13:48:44.735Z"
}
}
]
}
}