GHSA-7F96-M827-Q2R2
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 dcn20_set_output_transfer_func
This commit adds a null check for the set_output_gamma function pointer in the dcn20_set_output_transfer_func function. Previously, set_output_gamma was being checked for null at line 1030, but then it was being dereferenced without any null check at line 1048. This could potentially lead to a null pointer dereference error 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 at line 1048.
{
"affected": [],
"aliases": [
"CVE-2024-49911"
],
"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 dcn20_set_output_transfer_func\n\nThis commit adds a null check for the set_output_gamma function pointer\nin the dcn20_set_output_transfer_func function. Previously,\nset_output_gamma was being checked for null at line 1030, but then it\nwas being dereferenced without any null check at line 1048. This could\npotentially lead to a null pointer dereference error if set_output_gamma\nis 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 at line 1048.",
"id": "GHSA-7f96-m827-q2r2",
"modified": "2025-11-03T21:31:22Z",
"published": "2024-10-21T18:30:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49911"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/02411e9359297512946705b1cd8cf5e6b0806fa0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/62ed6f0f198da04e884062264df308277628004f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/827380b114f83c30b3e56d1a675980b6d65f7c88"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8c854138b593efbbd8fa46a25f3288c121c1d1a1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e8a24767899c86f4c5f1e4d3b2608942d054900f"
},
{
"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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|---|
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