GHSA-2M92-HRPH-H3F7
Vulnerability from github – Published: 2024-10-21 18:30 – Updated: 2025-11-03 21:31In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Add NULL check for function pointer in dcn32_set_output_transfer_func
This commit adds a null check for the set_output_gamma function pointer in the dcn32_set_output_transfer_func function. Previously, set_output_gamma was being checked for null, but then it was being dereferenced without any null check. This could lead to a null pointer dereference if set_output_gamma is null.
To fix this, we now ensure that set_output_gamma is not null before dereferencing it. We do this by adding a null check for set_output_gamma before the call to set_output_gamma.
{
"affected": [],
"aliases": [
"CVE-2024-49909"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-21T18:15:13Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add NULL check for function pointer in dcn32_set_output_transfer_func\n\nThis commit adds a null check for the set_output_gamma function pointer\nin the dcn32_set_output_transfer_func function. Previously,\nset_output_gamma was being checked for null, but then it was being\ndereferenced without any null check. This could lead to a null pointer\ndereference if set_output_gamma is null.\n\nTo fix this, we now ensure that set_output_gamma is not null before\ndereferencing it. We do this by adding a null check for set_output_gamma\nbefore the call to set_output_gamma.",
"id": "GHSA-2m92-hrph-h3f7",
"modified": "2025-11-03T21:31:22Z",
"published": "2024-10-21T18:30:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49909"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/28574b08c70e56d34d6f6379326a860b96749051"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/496486950c3d2aebf46a3be300296ac091da7a2d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5298270bdabe97be5b8236e544c9e936415fe1f2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e087c9738ee1cdeebde346f4dfc819e5f7057e90"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f38b09ba6a335c511eb27920bb9bb4a1b2c20084"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.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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