DEBIAN-CVE-2023-53501

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Source
https://security-tracker.debian.org/tracker/CVE-2023-53501
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53501.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2023-53501
Upstream
Published
2025-10-01T12:15:53Z
Modified
2025-10-02T09:17:16.192604Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved: iommu/amd/iommuv2: Fix pasidstate refcount dec hit 0 warning on pasid unbind When unbinding pasid - a race condition exists vs outstanding page faults. To prevent this, the pasidstate object contains a refcount. * set to 1 on pasid bind * incremented on each ppr notification start * decremented on each ppr notification done * decremented on pasid unbind Since refcountdec assumes that refcount will never reach 0: the current implementation causes the following to be invoked on pasid unbind: REFCOUNTWARN("decrement hit 0; leaking memory") Fix this issue by changing refcountdec to refcountdecand_test to explicitly handle refcount=1.

References

Affected packages

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
6.1.55-1

Affected versions

6.*

6.1.27-1
6.1.37-1
6.1.38-1
6.1.38-2~bpo11+1
6.1.38-2
6.1.38-3
6.1.38-4~bpo11+1
6.1.38-4
6.1.52-1
6.1.55-1~bpo11+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
6.5.3-1

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
6.5.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}