Medium
Security advisory
Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhost-user-gpu/virgl.c due to improper release of memory (i.e., free) after effective lifetime.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-3544
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 04:36 UTC · Revision 1
Source evidence
Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhost-user-gpu/virgl.c due to improper release of memory (i.e., free) after effective lifetime.
osv:CVE-2021-3544
Complete source record
{
"id": "aea33bfaeda9a39975c4927aab905f5880e054a0ab76764a6192efb2a26b06d4",
"url": "https://osv.dev/vulnerability/CVE-2021-3544",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-3544",
"summary": "Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhost-user-gpu/virgl.c due to improper release of memory (i.e., free) after effective lifetime.",
"evidence": "osv:CVE-2021-3544",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2021-3544",
"aliases": [
"CVE-2021-3544"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H"
}
],
"affected": [
{
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}
}
],
"modified": "2026-10-24T10:30:20.632406351Z",
"provider": "osv",
"references": [
"https://security.gentoo.org/glsa/202208-27",
"https://security.netapp.com/advisory/ntap-20210720-0008/",
"https://www.debian.org/security/2021/dsa-4980",
"https://bugzilla.redhat.com/show_bug.cgi?id=1958935"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
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],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
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{
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},
{
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}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2021-3544",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 430308,
"published_at": "2021-06-02T14:15:10.177+00:00"
}