DEBIAN-CVE-2021-47523

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Source
https://security-tracker.debian.org/tracker/DEBIAN-CVE-2021-47523
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47523.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2021-47523
Upstream
Published
2024-05-24T15:15:14Z
Modified
2025-09-17T23:04:26.531832Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fix leak of rcvhdrtaildummykvaddr This buffer is currently allocated in hfi1init(): if (reinit) ret = initafterreset(dd); else ret = loadtimeinit(dd); if (ret) goto done; /* allocate dummy tail memory for all receive contexts */ dd->rcvhdrtaildummykvaddr = dmaalloccoherent(&dd->pcidev->dev, sizeof(u64), &dd->rcvhdrtaildummydma, GFPKERNEL); if (!dd->rcvhdrtaildummykvaddr) { dddeverr(dd, "cannot allocate dummy tail memory\n"); ret = -ENOMEM; goto done; } The reinit triggered path will overwrite the old allocation and leak it. Fix by moving the allocation to hfi1allocdevdata() and the deallocation to hfi1free_devdata().

References

Affected packages

Debian:11 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.10.92-1

Affected versions

5.*

5.10.46-4
5.10.46-5
5.10.70-1~bpo10+1
5.10.70-1
5.10.84-1
5.10.92-1~bpo10+1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.15.15-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.15.15-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.15.15-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}