ghsa-jqqc-7468-4f66
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
drm/vboxvideo: Replace fake VLA at end of vbva_mouse_pointer_shape with real VLA
Replace the fake VLA at end of the vbva_mouse_pointer_shape shape with a real VLA to fix a "memcpy: detected field-spanning write error" warning:
[ 13.319813] memcpy: detected field-spanning write (size 16896) of single field "p->data" at drivers/gpu/drm/vboxvideo/hgsmi_base.c:154 (size 4) [ 13.319841] WARNING: CPU: 0 PID: 1105 at drivers/gpu/drm/vboxvideo/hgsmi_base.c:154 hgsmi_update_pointer_shape+0x192/0x1c0 [vboxvideo] [ 13.320038] Call Trace: [ 13.320173] hgsmi_update_pointer_shape [vboxvideo] [ 13.320184] vbox_cursor_atomic_update [vboxvideo]
Note as mentioned in the added comment it seems the original length calculation for the allocated and send hgsmi buffer is 4 bytes too large. Changing this is not the goal of this patch, so this behavior is kept.
{
"affected": [],
"aliases": [
"CVE-2024-50134"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-05T18:15:16Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vboxvideo: Replace fake VLA at end of vbva_mouse_pointer_shape with real VLA\n\nReplace the fake VLA at end of the vbva_mouse_pointer_shape shape with\na real VLA to fix a \"memcpy: detected field-spanning write error\" warning:\n\n[ 13.319813] memcpy: detected field-spanning write (size 16896) of single field \"p-\u003edata\" at drivers/gpu/drm/vboxvideo/hgsmi_base.c:154 (size 4)\n[ 13.319841] WARNING: CPU: 0 PID: 1105 at drivers/gpu/drm/vboxvideo/hgsmi_base.c:154 hgsmi_update_pointer_shape+0x192/0x1c0 [vboxvideo]\n[ 13.320038] Call Trace:\n[ 13.320173] hgsmi_update_pointer_shape [vboxvideo]\n[ 13.320184] vbox_cursor_atomic_update [vboxvideo]\n\nNote as mentioned in the added comment it seems the original length\ncalculation for the allocated and send hgsmi buffer is 4 bytes too large.\nChanging this is not the goal of this patch, so this behavior is kept.",
"id": "GHSA-jqqc-7468-4f66",
"modified": "2024-11-08T18:30:49Z",
"published": "2024-11-05T18:32:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50134"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/02c86c5d5ef4bbba17d38859c74872825f536617"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/34a422274b693507025a7db21519865d1862afcb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7458a6cdaebb3dc59af8578ee354fae78a154c4a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/75f828e944dacaac8870418461d3d48a1ecf2331"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9eb32bd23bbcec44bcbef27b7f282b7a7f3d0391"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d92b90f9a54d9300a6e883258e79f36dab53bfae"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fae9dc12c61ce23cf29d09824a741b7b1ff8f01f"
}
],
"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"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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