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CVE-2022-23035

Insufficient cleanup of passed-through device IRQs The management of IRQs associated with...

4.6 MediumFix available

Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.

Attack profile

How easy it is to exploit

Attack vector
Physical
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.35%Down 0.5 points since Feb 8, 2022
90%50%10%1%

What each source reports

NVD Score used 4.6

Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.

Record
CVE-2022-23035
CVSS 3.1
4.6 MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
4.7 MediumAV:L/AC:M/Au:N/C:N/I:N/A:C
Weakness
CWE-459
Updated
2026-11-02
CVE List No score

Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.

Record
CVE-2022-23035
Updated
2026-11-02
EUVDEUVD-2022-28146 No score

Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.

Record
EUVD-2022-28146
Updated
2026-11-03
GitHub AdvisoriesGHSA-5x5q-fcw5-7frv 4.6

Insufficient cleanup of passed-through device IRQs The management of IRQs associated with...

Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.

Record
GHSA-5x5q-fcw5-7frv
CVSS 3.1
4.6 MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-459
Updated
2026-11-02
OSVALPINE-CVE-2022-23035 4.6

Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.

Record
ALPINE-CVE-2022-23035
CVSS 3.1
4.6 MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-03
OSV 4.6

Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.

Record
CVE-2022-23035
CVSS 3.1
4.6 MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 13 moreShow less
OSVDEBIAN-CVE-2022-23035 4.6

Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.

Record
DEBIAN-CVE-2022-23035
CVSS 3.1
4.6 MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-03
OSVUBUNTU-CVE-2022-23035 4.6

Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.

Record
UBUNTU-CVE-2022-23035
CVSS 3.1
4.6 MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2022:0333-1 No score

Security update for xen

This update for xen fixes the following issues:

  • CVE-2022-23033: Fixed guest_physmap_remove_page not removing the p2m mappings. (XSA-393) (bsc#1194576)
  • CVE-2022-23034: Fixed possible DoS by a PV guest Xen while unmapping a grant. (XSA-394) (bsc#1194581)
  • CVE-2022-23035: Fixed insufficient cleanup of passed-through device IRQs. (XSA-395) (bsc#1194588)
Record
openSUSE-SU-2022:0333-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:11781-1 No score

xen-4.16.0_04-3.1 on GA media

These are all security issues fixed in the xen-4.16.0_04-3.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:11781-1
Updated
2026-11-02
OSVSUSE-SU-2022:0331-1 No score

Security update for xen

This update for xen fixes the following issues:

  • CVE-2022-23034: Fixed possible DoS by a PV guest Xen while unmapping a grant. (XSA-394) (bsc#1194581)
  • CVE-2022-23035: Fixed insufficient cleanup of passed-through device IRQs. (XSA-395) (bsc#1194588)
Record
SUSE-SU-2022:0331-1
Updated
2026-11-02
OSVSUSE-SU-2022:0332-1 No score

Security update for xen

This update for xen fixes the following issues:

  • CVE-2022-23034: Fixed possible DoS by a PV guest Xen while unmapping a grant. (XSA-394) (bsc#1194581)
  • CVE-2022-23035: Fixed insufficient cleanup of passed-through device IRQs. (XSA-395) (bsc#1194588)
Record
SUSE-SU-2022:0332-1
Updated
2026-11-02
OSVSUSE-SU-2022:0333-1 No score

Security update for xen

This update for xen fixes the following issues:

  • CVE-2022-23033: Fixed guest_physmap_remove_page not removing the p2m mappings. (XSA-393) (bsc#1194576)
  • CVE-2022-23034: Fixed possible DoS by a PV guest Xen while unmapping a grant. (XSA-394) (bsc#1194581)
  • CVE-2022-23035: Fixed insufficient cleanup of passed-through device IRQs. (XSA-395) (bsc#1194588)
Record
SUSE-SU-2022:0333-1
Updated
2026-11-02
OSVSUSE-SU-2022:0342-1 No score

Security update for xen

This update for xen fixes the following issues:

  • CVE-2022-23034: Fixed possible DoS by a PV guest Xen while unmapping a grant. (XSA-394) (bsc#1194581)
  • CVE-2022-23035: Fixed insufficient cleanup of passed-through device IRQs. (XSA-395) (bsc#1194588)
Record
SUSE-SU-2022:0342-1
Updated
2026-11-02
OSVSUSE-SU-2022:0359-1 No score

Security update for xen

This update for xen fixes the following issues:

  • CVE-2022-23034: Fixed possible DoS by a PV guest Xen while unmapping a grant. (XSA-394) (bsc#1194581)
  • CVE-2022-23035: Fixed insufficient cleanup of passed-through device IRQs. (XSA-395) (bsc#1194588)
Record
SUSE-SU-2022:0359-1
Updated
2026-11-02
OSVSUSE-SU-2022:0467-1 No score

Security update for xen

This update for xen fixes the following issues:

  • CVE-2022-23033: Fixed guest_physmap_remove_page not removing the p2m mappings. (XSA-393) (bsc#1194576)
  • CVE-2022-23034: Fixed possible DoS by a PV guest Xen while unmapping a grant. (XSA-394) (bsc#1194581)
  • CVE-2022-23035: Fixed insufficient cleanup of passed-through device IRQs. (XSA-395) (bsc#1194588)
Record
SUSE-SU-2022:0467-1
Updated
2026-11-02
OSVSUSE-SU-2022:0468-1 No score

Security update for xen

This update for xen fixes the following issues:

  • CVE-2022-23033: Fixed guest_physmap_remove_page not removing the p2m mappings. (XSA-393) (bsc#1194576)
  • CVE-2022-23034: Fixed possible DoS by a PV guest Xen while unmapping a grant. (XSA-394) (bsc#1194581)
  • CVE-2022-23035: Fixed insufficient cleanup of passed-through device IRQs. (XSA-395) (bsc#1194588)
Record
SUSE-SU-2022:0468-1
Updated
2026-11-02
OSVSUSE-SU-2022:0469-1 No score

Security update for xen

This update for xen fixes the following issues:

  • CVE-2022-23033: Fixed guest_physmap_remove_page not removing the p2m mappings. (XSA-393) (bsc#1194576)
  • CVE-2022-23034: Fixed possible DoS by a PV guest Xen while unmapping a grant. (XSA-394) (bsc#1194581)
  • CVE-2022-23035: Fixed insufficient cleanup of passed-through device IRQs. (XSA-395) (bsc#1194588)
Record
SUSE-SU-2022:0469-1
Updated
2026-11-02
OSVSUSE-SU-2022:14886-1 No score

Security update for xen

This update for xen fixes the following issues:

  • CVE-2022-23034: Fixed possible DoS by a PV guest Xen while unmapping a grant. (XSA-394) (bsc#1194581)
  • CVE-2022-23035: Fixed insufficient cleanup of passed-through device IRQs. (XSA-395) (bsc#1194588)
Record
SUSE-SU-2022:14886-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
xen
Alpine:v3.12
4.6.0 up to 4.13.4-r3
4.13.4-r3
xen
Alpine:v3.13
4.6.0 up to 4.14.5-r0
4.14.5-r0
xen
Alpine:v3.14
4.6.0 up to 4.15.2-r0
4.15.2-r0
xen
Alpine:v3.15
4.6.0 up to 4.15.2-r0
4.15.2-r0
xen
Alpine:v3.16
4.6.0 up to 4.16.1-r0
4.16.1-r0
xen
Alpine:v3.17
4.6.0 up to 4.16.1-r0
4.16.1-r0
xen
Alpine:v3.18
4.6.0 up to 4.16.1-r0
4.16.1-r0
xen
Alpine:v3.19
4.6.0 up to 4.16.1-r0
4.16.1-r0
xen
Alpine:v3.20
4.6.0 up to 4.16.1-r0
4.16.1-r0
xen
Alpine:v3.21
4.6.0 up to 4.16.1-r0
4.16.1-r0
Show 55 moreShow less
Affected packages
PackageAffectedFixed
xen
Alpine:v3.22
4.6.0 up to 4.16.1-r0
4.16.1-r0
xen
Alpine:v3.23
4.6.0 up to 4.16.1-r0
4.16.1-r0
xen
Alpine:v3.24
4.6.0 up to 4.16.1-r0
4.16.1-r0
xen
Debian:12
before 4.16.0+51-g0941d6cb-1
4.16.0+51-g0941d6cb-1
xen
Debian:13
before 4.16.0+51-g0941d6cb-1
4.16.0+51-g0941d6cb-1
xen
Debian:14
before 4.16.0+51-g0941d6cb-1
4.16.0+51-g0941d6cb-1
xen
Debian:11
From an advisory covering 9 CVEs
before 4.14.4+74-gd7b22226b5-1, plus listed versions
4.14.2+25-gb6a8c4f72d-24.14.3+32-g9de3671772-14.14.3+32-g9de3671772-1~deb11u14.14.3-14.14.3-1~deb11u1
4.14.4+74-gd7b22226b5-1
xen
SUSE:OpenStack Cloud 9
From an advisory covering 2 CVEs
before 4.11.4_26-2.68.1
4.11.4_26-2.68.1
xen
SUSE:OpenStack Cloud Crowbar 9
From an advisory covering 2 CVEs
before 4.11.4_26-2.68.1
4.11.4_26-2.68.1
xen
SUSE:Linux Enterprise Server for SAP Applications 12 SP4
From an advisory covering 2 CVEs
before 4.11.4_26-2.68.1
4.11.4_26-2.68.1
xen
SUSE:Linux Enterprise Server 12 SP4-LTSS
From an advisory covering 2 CVEs
before 4.11.4_26-2.68.1
4.11.4_26-2.68.1
xen
SUSE:Linux Enterprise High Performance Computing 15-ESPOS
From an advisory covering 2 CVEs
before 4.10.4_32-3.71.1
4.10.4_32-3.71.1
xen
SUSE:Linux Enterprise High Performance Computing 15-LTSS
From an advisory covering 2 CVEs
before 4.10.4_32-3.71.1
4.10.4_32-3.71.1
xen
SUSE:Linux Enterprise Server for SAP Applications 15
From an advisory covering 2 CVEs
before 4.10.4_32-3.71.1
4.10.4_32-3.71.1
xen
SUSE:Linux Enterprise Module for Basesystem 15 SP3
From an advisory covering 3 CVEs
before 4.14.3_06-150300.3.18.2
4.14.3_06-150300.3.18.2
xen
SUSE:Linux Enterprise Module for Server Applications 15 SP3
From an advisory covering 3 CVEs
before 4.14.3_06-150300.3.18.2
4.14.3_06-150300.3.18.2
xen
SUSE:Linux Enterprise Micro 5.1
From an advisory covering 3 CVEs
before 4.14.3_06-150300.3.18.2
4.14.3_06-150300.3.18.2
xen
SUSE:Linux Enterprise Server 12 SP2-BCL
From an advisory covering 2 CVEs
before 4.7.6_20-43.85.1
4.7.6_20-43.85.1
xen
SUSE:HPE Helion OpenStack 8
From an advisory covering 2 CVEs
before 4.9.4_26-3.100.1
4.9.4_26-3.100.1
xen
SUSE:OpenStack Cloud 8
From an advisory covering 2 CVEs
before 4.9.4_26-3.100.1
4.9.4_26-3.100.1
xen
SUSE:OpenStack Cloud Crowbar 8
From an advisory covering 2 CVEs
before 4.9.4_26-3.100.1
4.9.4_26-3.100.1
xen
SUSE:Linux Enterprise Server for SAP Applications 12 SP3
From an advisory covering 2 CVEs
before 4.9.4_26-3.100.1
4.9.4_26-3.100.1
xen
SUSE:Linux Enterprise Server 12 SP3-LTSS
From an advisory covering 2 CVEs
before 4.9.4_26-3.100.1
4.9.4_26-3.100.1
xen
SUSE:Linux Enterprise Server 12 SP3-BCL
From an advisory covering 2 CVEs
before 4.9.4_26-3.100.1
4.9.4_26-3.100.1
xen
SUSE:Linux Enterprise High Performance Computing 15 SP2-ESPOS
From an advisory covering 3 CVEs
before 4.13.4_04-3.43.2
4.13.4_04-3.43.2
xen
SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS
From an advisory covering 3 CVEs
before 4.13.4_04-3.43.2
4.13.4_04-3.43.2
xen
SUSE:Linux Enterprise Real Time 15 SP2
From an advisory covering 3 CVEs
before 4.13.4_04-3.43.2
4.13.4_04-3.43.2
xen
SUSE:Linux Enterprise Server 15 SP2-BCL
From an advisory covering 3 CVEs
before 4.13.4_04-3.43.2
4.13.4_04-3.43.2
xen
SUSE:Linux Enterprise Server 15 SP2-LTSS
From an advisory covering 3 CVEs
before 4.13.4_04-3.43.2
4.13.4_04-3.43.2
xen
SUSE:Linux Enterprise Server for SAP Applications 15 SP2
From an advisory covering 3 CVEs
before 4.13.4_04-3.43.2
4.13.4_04-3.43.2
xen
SUSE:Manager Proxy 4.1
From an advisory covering 3 CVEs
before 4.13.4_04-3.43.2
4.13.4_04-3.43.2
xen
SUSE:Manager Retail Branch Server 4.1
From an advisory covering 3 CVEs
before 4.13.4_04-3.43.2
4.13.4_04-3.43.2
xen
SUSE:Manager Server 4.1
From an advisory covering 3 CVEs
before 4.13.4_04-3.43.2
4.13.4_04-3.43.2
xen
SUSE:Linux Enterprise Micro 5.0
From an advisory covering 3 CVEs
before 4.13.4_04-3.43.2
4.13.4_04-3.43.2
xen
SUSE:Enterprise Storage 7
From an advisory covering 3 CVEs
before 4.13.4_04-3.43.2
4.13.4_04-3.43.2
xen
SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS
From an advisory covering 3 CVEs
before 4.12.4_18-3.60.2
4.12.4_18-3.60.2
xen
SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS
From an advisory covering 3 CVEs
before 4.12.4_18-3.60.2
4.12.4_18-3.60.2
xen
SUSE:Linux Enterprise Server 15 SP1-BCL
From an advisory covering 3 CVEs
before 4.12.4_18-3.60.2
4.12.4_18-3.60.2
xen
SUSE:Linux Enterprise Server 15 SP1-LTSS
From an advisory covering 3 CVEs
before 4.12.4_18-3.60.2
4.12.4_18-3.60.2
xen
SUSE:Linux Enterprise Server for SAP Applications 15 SP1
From an advisory covering 3 CVEs
before 4.12.4_18-3.60.2
4.12.4_18-3.60.2
xen
SUSE:Enterprise Storage 6
From an advisory covering 3 CVEs
before 4.12.4_18-3.60.2
4.12.4_18-3.60.2
xen
SUSE:Linux Enterprise Software Development Kit 12 SP5
From an advisory covering 3 CVEs
before 4.12.4_18-3.58.2
4.12.4_18-3.58.2
xen
SUSE:Linux Enterprise Server 12 SP5
From an advisory covering 3 CVEs
before 4.12.4_18-3.58.2
4.12.4_18-3.58.2
xen
SUSE:Linux Enterprise Server for SAP Applications 12 SP5
From an advisory covering 3 CVEs
before 4.12.4_18-3.58.2
4.12.4_18-3.58.2
xen
SUSE:Linux Enterprise Server 11 SP4-LTSS
From an advisory covering 2 CVEs
before 4.4.4_52-61.70.1
4.4.4_52-61.70.1
xen
Ubuntu:16.04:LTS
All versions, plus listed versions
4.5.1-0ubuntu14.5.1-0ubuntu24.6.0-1ubuntu14.6.0-1ubuntu24.6.0-1ubuntu4
Show 7 moreShow less
4.6.0-1ubuntu4.14.6.0-1ubuntu4.24.6.0-1ubuntu4.34.6.5-0ubuntu14.6.5-0ubuntu1.14.6.5-0ubuntu1.24.6.5-0ubuntu1.4
None known
xen
Ubuntu:18.04:LTS
All versions, plus listed versions
4.9.0-0ubuntu34.9.0-0ubuntu44.9.2-0ubuntu1
None known
xen
Ubuntu:20.04:LTS
All versions, plus listed versions
4.9.2-0ubuntu24.9.2-0ubuntu64.9.2-0ubuntu74.11.3+24-g14b62ab3e5-1ubuntu14.11.3+24-g14b62ab3e5-1ubuntu24.11.3+24-g14b62ab3e5-1ubuntu2.24.11.3+24-g14b62ab3e5-1ubuntu2.3
None known
xen
Ubuntu:22.04:LTS
All versions, plus listed versions
4.11.4+24-gddaaccbbab-1ubuntu24.16.0-1~ubuntu24.16.0-1~ubuntu2.1
None known
xen
Ubuntu:24.04:LTS
All versions, plus listed versions
4.17.2-14.17.2+55-g0b56bed864-14.17.2+76-ge1f9cb16e2-14.17.2+76-ge1f9cb16e2-1ubuntu14.17.3+10-g091466ba55-14.17.3+10-g091466ba55-1.1ubuntu24.17.3+10-g091466ba55-1.1ubuntu3
None known
xen
Ubuntu:25.10
All versions, plus listed versions
4.20.0-1ubuntu14.20.0+68-g35cb38b222-1
None known
xen
Ubuntu:26.10
All versions, plus listed versions
4.20.2+7-g1badcf5035-2build24.20.2+37-g61ff35323e-1ubuntu14.20.3+127-gc42374a105-1
None known
xen
Ubuntu:26.04:LTS
All versions, plus listed versions
4.20.0+68-g35cb38b222-14.20.2+7-g1badcf5035-24.20.2+7-g1badcf5035-2build2
None known
xen
openSUSE:Leap 15.3
From an advisory covering 3 CVEs
before 4.14.3_06-150300.3.18.2
4.14.3_06-150300.3.18.2
xen
openSUSE:Tumbleweed
From an advisory covering 3 CVEs
before 4.16.0_04-3.1
4.16.0_04-3.1

History

History
RecordedChangedSources
affected, factsOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-23035 is a medium vulnerability (CVSS 4.6) in Debian Linux, published January 25, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 29th percentile. Fixed in xen 4.13.4-r3.

References

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