GHSA-VXPV-RV2Q-V5R7
Vulnerability from github – Published: 2024-05-01 15:30 – Updated: 2024-11-01 18:31In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: fix NULL checks for adev->dm.dc in amdgpu_dm_fini()
Since 'adev->dm.dc' in amdgpu_dm_fini() might turn out to be NULL before the call to dc_enable_dmub_notifications(), check beforehand to ensure there will not be a possible NULL-ptr-deref there.
Also, since commit 1e88eb1b2c25 ("drm/amd/display: Drop CONFIG_DRM_AMD_DC_HDCP") there are two separate checks for NULL in 'adev->dm.dc' before dc_deinit_callbacks() and dc_dmub_srv_destroy(). Clean up by combining them all under one 'if'.
Found by Linux Verification Center (linuxtesting.org) with static analysis tool SVACE.
{
"affected": [],
"aliases": [
"CVE-2024-27041"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-01T13:15:49Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix NULL checks for adev-\u003edm.dc in amdgpu_dm_fini()\n\nSince \u0027adev-\u003edm.dc\u0027 in amdgpu_dm_fini() might turn out to be NULL\nbefore the call to dc_enable_dmub_notifications(), check\nbeforehand to ensure there will not be a possible NULL-ptr-deref\nthere.\n\nAlso, since commit 1e88eb1b2c25 (\"drm/amd/display: Drop\nCONFIG_DRM_AMD_DC_HDCP\") there are two separate checks for NULL in\n\u0027adev-\u003edm.dc\u0027 before dc_deinit_callbacks() and dc_dmub_srv_destroy().\nClean up by combining them all under one \u0027if\u0027.\n\nFound by Linux Verification Center (linuxtesting.org) with static\nanalysis tool SVACE.",
"id": "GHSA-vxpv-rv2q-v5r7",
"modified": "2024-11-01T18:31:25Z",
"published": "2024-05-01T15:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27041"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1c62697e4086de988b31124fb8c79c244ea05f2b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2a3cfb9a24a28da9cc13d2c525a76548865e182c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ca2eb375db76fd50f31afdd67d6ca4f833254957"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e040f1fbe9abae91b12b074cfc3bbb5367b79811"
}
],
"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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