DEBIAN-CVE-2023-54095

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Source
https://security-tracker.debian.org/tracker/CVE-2023-54095
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-54095.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2023-54095
Upstream
Published
2025-12-24T13:16:11.383Z
Modified
2025-12-25T11:20:10.541169Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved: powerpc/iommu: Fix notifiers being shared by PCI and VIO buses failiommusetup() registers the failiommubusnotifier struct to both PCI and VIO buses. struct notifierblock is a linked list node, so this causes any notifiers later registered to either bus type to also be registered to the other since they share the same node. This causes issues in (at least) the vgaarb code, which registers a notifier for PCI buses. pcinotify() ends up being called on a vio device, converted with topcidev() even though it's not a PCI device, and finally makes a bad access in vgaarbiteraddpcidevice() as discovered with KASAN: BUG: KASAN: slab-out-of-bounds in vgaarbiteraddpcidevice+0x60/0xe00 Read of size 4 at addr c000000264c26fdc by task swapper/0/1 Call Trace: dumpstacklvl+0x1bc/0x2b8 (unreliable) printreport+0x3f4/0xc60 kasanreport+0x244/0x698 _asanload4+0xe8/0x250 vgaarbiteraddpcidevice+0x60/0xe00 pcinotify+0x88/0x444 notifiercallchain+0x104/0x320 blockingnotifiercallchain+0xa0/0x140 deviceadd+0xac8/0x1d30 deviceregister+0x58/0x80 vioregisterdevicenode+0x9ac/0xce0 viobusscanregisterdevices+0xc4/0x13c _machineinitcallpseriesviodeviceinit+0x94/0xf0 dooneinitcall+0x12c/0xaa8 kernelinitfreeable+0xa48/0xba8 kernelinit+0x64/0x400 retfromkernelthread+0x5c/0x64 Fix this by creating separate notifierblock structs for each bus type. [mpe: Add #ifdef to fix CONFIGIBMVIO=n build]

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
5.10.197-1

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
5.10.92-1
5.10.92-2
5.10.103-1~bpo10+1
5.10.103-1
5.10.106-1
5.10.113-1
5.10.120-1~bpo10+1
5.10.120-1
5.10.127-1
5.10.127-2~bpo10+1
5.10.127-2
5.10.136-1
5.10.140-1
5.10.148-1
5.10.149-1
5.10.149-2
5.10.158-1
5.10.158-2
5.10.162-1
5.10.178-1
5.10.178-2
5.10.178-3
5.10.179-1
5.10.179-2
5.10.179-3
5.10.179-4
5.10.179-5
5.10.191-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-54095.json"

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"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-54095.json"

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"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-54095.json"

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"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-54095.json"