GHSA-Q56F-P5H4-MJCF
Vulnerability from github – Published: 2024-10-21 12:30 – Updated: 2026-05-12 12:32In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Check link_res->hpo_dp_link_enc before using it
[WHAT & HOW] Functions dp_enable_link_phy and dp_disable_link_phy can pass link_res without initializing hpo_dp_link_enc and it is necessary to check for null before dereferencing.
This fixes 2 FORWARD_NULL issues reported by Coverity.
{
"affected": [],
"aliases": [
"CVE-2024-47704"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-21T12:15:06Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Check link_res-\u003ehpo_dp_link_enc before using it\n\n[WHAT \u0026 HOW]\nFunctions dp_enable_link_phy and dp_disable_link_phy can pass link_res\nwithout initializing hpo_dp_link_enc and it is necessary to check for\nnull before dereferencing.\n\nThis fixes 2 FORWARD_NULL issues reported by Coverity.",
"id": "GHSA-q56f-p5h4-mjcf",
"modified": "2026-05-12T12:32:10Z",
"published": "2024-10-21T12:30:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47704"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0508a4e95ac1aefd851ceb97ea050d8abb93262c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0beca868cde8742240cd0038141c30482d2b7eb8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/530e29452b955c30cf2102fa4d07420dc6e0c953"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8c22a62288194f072eb3a51045b700fce1c18d9e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/be2ca7a2c1561390d28bf2f92654d819659ba510"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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