linux — security advisory
In the Linux kernel, the following vulnerability has been resolved: RDMA: Fix use-after-free in rxe_queue_cleanup On error handling path in rxe_qp_from_init() qp->sq.queue is freed and then rxe_create_qp() will drop last reference to this object. qp clean up function will try to free this queue one time and it causes UAF bug. Fix it by zeroing queue pointer after freeing queue in rxe_qp_from_init().
- Products
- linux
- Affected versions
- Not specified
- Fixed versions
- 5.15.15-1
- CVEs
- CVE-2021-47616
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 01:02 UTC · Revision 1
Source evidence
In the Linux kernel, the following vulnerability has been resolved: RDMA: Fix use-after-free in rxe_queue_cleanup On error handling path in rxe_qp_from_init() qp->sq.queue is freed and then rxe_create_qp() will drop last reference to this object. qp clean up function will try to free this queue one time and it causes UAF bug. Fix it by zeroing queue pointer after freeing queue in rxe_qp_from_init().
osv:DEBIAN-CVE-2021-47616
linux
Fixed versions: 5.15.15-1
linux
Fixed versions: 5.15.15-1
linux
Fixed versions: 5.15.15-1
Complete source record
{
"id": "4308fef409968e95d4fa1cc2f5611917947dfd198023cf5c36bac55a0b1b5fc1",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2021-47616",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2021-47616",
"summary": "In the Linux kernel, the following vulnerability has been resolved: RDMA: Fix use-after-free in rxe_queue_cleanup On error handling path in rxe_qp_from_init() qp->sq.queue is freed and then rxe_create_qp() will drop last reference to this object. qp clean up function will try to free this queue one time and it causes UAF bug. Fix it by zeroing queue pointer after freeing queue in rxe_qp_from_init().",
"evidence": "osv:DEBIAN-CVE-2021-47616",
"products": [
{
"name": {
"value": "linux",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/0/ranges"
}
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"affected_versions": []
},
{
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"severity": "high",
"structured": {
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"aliases": [
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"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
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"affected": [
{
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"package": {
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"purl": "pkg:deb/debian/linux?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
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"database_specific": {
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{
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],
"package": {
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"ecosystem": "Debian:13"
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"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47616.json"
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{
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],
"package": {
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"purl": "pkg:deb/debian/linux?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47616.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:04:02.053517647Z",
"provider": "osv",
"upstream": [
"CVE-2021-47616"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2021-47616"
]
},
"related_cves": [
{
"value": "CVE-2021-47616",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 423027,
"published_at": "2024-06-19T15:15:56.13+00:00"
}