GHSA-5GGJ-XWVC-9X57
Vulnerability from github – Published: 2024-11-19 18:31 – Updated: 2026-10-30 15:31In the Linux kernel, the following vulnerability has been resolved:
drm/mediatek: Fix potential NULL dereference in mtk_crtc_destroy()
In mtk_crtc_create(), if the call to mbox_request_channel() fails then we set the "mtk_crtc->cmdq_client.chan" pointer to NULL. In that situation, we do not call cmdq_pkt_create().
During the cleanup, we need to check if the "mtk_crtc->cmdq_client.chan" is NULL first before calling cmdq_pkt_destroy(). Calling cmdq_pkt_destroy() is unnecessary if we didn't call cmdq_pkt_create() and it will result in a NULL pointer dereference.
{
"affected": [],
"aliases": [
"CVE-2024-53056"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-19T18:15:25Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/mediatek: Fix potential NULL dereference in mtk_crtc_destroy()\n\nIn mtk_crtc_create(), if the call to mbox_request_channel() fails then we\nset the \"mtk_crtc-\u003ecmdq_client.chan\" pointer to NULL. In that situation,\nwe do not call cmdq_pkt_create().\n\nDuring the cleanup, we need to check if the \"mtk_crtc-\u003ecmdq_client.chan\"\nis NULL first before calling cmdq_pkt_destroy(). Calling\ncmdq_pkt_destroy() is unnecessary if we didn\u0027t call cmdq_pkt_create() and\nit will result in a NULL pointer dereference.",
"id": "GHSA-5ggj-xwvc-9x57",
"modified": "2026-10-30T15:31:59Z",
"published": "2024-11-19T18:31:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53056"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/32ac6dccf561af97f20a3831430577d8a978e672"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4018651ba5c409034149f297d3dd3328b91561fd"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c60583a87cb4a85b69d1f448f0be5eb6ec62cbb2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fb05e973698f4af008c7fb6e0cfa6a2fa1d98409"
}
],
"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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