Unrated severityNVD Advisory· Published Mar 20, 2024· Updated Nov 4, 2025
pci: phantom functions assigned to incorrect contexts
CVE-2023-46839
Description
PCI devices can make use of a functionality called phantom functions, that when enabled allows the device to generate requests using the IDs of functions that are otherwise unpopulated. This allows a device to extend the number of outstanding requests.
Such phantom functions need an IOMMU context setup, but failure to setup the context is not fatal when the device is assigned. Not failing device assignment when such failure happens can lead to the primary device being assigned to a guest, while some of the phantom functions are assigned to a different domain.
AI Insight
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Affected products
31- osv-coords30 versionspkg:rpm/opensuse/xen&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/xen&distro=openSUSE%20Leap%20Micro%205.3pkg:rpm/opensuse/xen&distro=openSUSE%20Leap%20Micro%205.4pkg:rpm/opensuse/xen&distro=openSUSE%20Tumbleweedpkg:rpm/suse/xen&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Micro%205.2pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Micro%205.3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Micro%205.4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP5pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/xen&distro=SUSE%20Manager%20Proxy%204.3pkg:rpm/suse/xen&distro=SUSE%20Manager%20Server%204.3
< 4.17.3_04-150500.3.21.1+ 29 more
- (no CPE)range: < 4.17.3_04-150500.3.21.1
- (no CPE)range: < 4.16.5_12-150400.4.46.1
- (no CPE)range: < 4.16.5_12-150400.4.46.1
- (no CPE)range: < 4.18.0_06-1.1
- (no CPE)range: < 4.14.6_10-150300.3.63.1
- (no CPE)range: < 4.12.4_44-150100.3.101.1
- (no CPE)range: < 4.13.5_10-150200.3.86.1
- (no CPE)range: < 4.14.6_10-150300.3.63.1
- (no CPE)range: < 4.16.5_12-150400.4.46.1
- (no CPE)range: < 4.16.5_12-150400.4.46.1
- (no CPE)range: < 4.14.6_10-150300.3.63.1
- (no CPE)range: < 4.14.6_10-150300.3.63.1
- (no CPE)range: < 4.16.5_12-150400.4.46.1
- (no CPE)range: < 4.16.5_12-150400.4.46.1
- (no CPE)range: < 4.17.3_04-150500.3.21.1
- (no CPE)range: < 4.17.3_04-150500.3.21.1
- (no CPE)range: < 4.17.3_04-150500.3.21.1
- (no CPE)range: < 4.12.4_44-3.103.1
- (no CPE)range: < 4.12.4_44-150100.3.101.1
- (no CPE)range: < 4.13.5_10-150200.3.86.1
- (no CPE)range: < 4.14.6_10-150300.3.63.1
- (no CPE)range: < 4.16.5_12-150400.4.46.1
- (no CPE)range: < 4.12.4_44-3.103.1
- (no CPE)range: < 4.12.4_44-150100.3.101.1
- (no CPE)range: < 4.13.5_10-150200.3.86.1
- (no CPE)range: < 4.14.6_10-150300.3.63.1
- (no CPE)range: < 4.16.5_12-150400.4.46.1
- (no CPE)range: < 4.12.4_44-3.103.1
- (no CPE)range: < 4.16.5_12-150400.4.46.1
- (no CPE)range: < 4.16.5_12-150400.4.46.1
Patches
Vulnerability mechanics
References
1News mentions
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