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CVE-2022-50482· NVD / CVE Program· CNA Linux

iommu/vt-d: Clean up si_domain in the init_dmars() error path

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.15% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 0365d6af75f9f2696e94a0fef24a2c8464c037c8, 5cecfe151874b835331efe086bbdcaeaf64f6b90, 620bf9f981365c18cc2766c53d92bf8131c63f32.

Low priority for now. Upgrade to Linux Linux 0365d6af75f9f2696e94a0fef24a2c8464c037c8, 5cecfe151874b835331efe086bbdcaeaf64f6b90, 620bf9f981365c18cc2766c53d92bf8131c63f32 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clean up si_domain in the init_dmars() error path A splat from kmem_cache_destroy() was seen with a kernel prior to commit ee2653bbe89d ("iommu/vt-d: Remove domain and devinfo mempool") when there was a failure in init_dmars(), because the iommu_domain cache still had objects. While the mempool code is now gone, there still is a leak of the si_domain memory if init_dmars() fails. So clean up si_domain in the init_dmars() error path.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Oct 4, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 4th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel4.2 and later · before 4.14.298
  • linux linux kernel4.15 and later · before 4.19.264
  • linux linux kernel4.20 and later · before 5.4.221
  • linux linux kernel5.5 and later · before 5.10.152
  • linux linux kernel5.11 and later · before 5.15.76
  • linux linux kernel5.16 and later · before 6.0.6
  • linux linux kernel6.1

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 4.2affected
    • 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 and later · before 749bea542b67513e99240dc58bbfc099e842d508affected · git
    • 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 and later · before 5cecfe151874b835331efe086bbdcaeaf64f6b90affected · git
    • 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 and later · before 724483b585a1b1e063d42ac5aa835707ff2ec165affected · git
    • 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 and later · before d74196bb278b8f8af88e16bd595997dfa3d6fdb0affected · git
    • 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 and later · before 0365d6af75f9f2696e94a0fef24a2c8464c037c8affected · git
    • 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 and later · before c4ad3ae4c6be9d8b0701761c839771116bca6ea3affected · git
    • 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 and later · before 620bf9f981365c18cc2766c53d92bf8131c63f32affected · git
    • before 4.2not affected · semver
    • 4.14.298 and later · up to and including 4.14.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.0.6-16.0.6-1
Red Hat:enterprise_linux:8::baseosbpftoolbefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseosbpftool-debuginfobefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernelbefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-abi-stablelistsbefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-corebefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-debugbefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-debug-corebefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-debug-debuginfobefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-debug-develbefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-debug-modulesbefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-debug-modules-extrabefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-debuginfobefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-debuginfo-common-aarch64before 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-debuginfo-common-ppc64lebefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-debuginfo-common-s390xbefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-debuginfo-common-x86_64before 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-develbefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-docbefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-modulesbefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-modules-extrabefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-toolsbefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-tools-debuginfobefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7
Red Hat:enterprise_linux:8::baseoskernel-tools-libsbefore 0:4.18.0-425.13.1.el8_70:4.18.0-425.13.1.el8_7

+33

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  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
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  • CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV
    77This week
  • CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV
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    77This week

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux0365d6af75f9f2696e94a0fef24a2c8464c037c8Vendor (CNA)
Linux Linux5cecfe151874b835331efe086bbdcaeaf64f6b90Vendor (CNA)
Linux Linux620bf9f981365c18cc2766c53d92bf8131c63f32Vendor (CNA)
Linux Linux724483b585a1b1e063d42ac5aa835707ff2ec165Vendor (CNA)
Linux Linux749bea542b67513e99240dc58bbfc099e842d508Vendor (CNA)
Linux Linuxc4ad3ae4c6be9d8b0701761c839771116bca6ea3Vendor (CNA)
Linux Linuxd74196bb278b8f8af88e16bd595997dfa3d6fdb0Vendor (CNA)
debian:linux6.0.6-1 · Debian:12Package registry (OSV)
red hat:bpftool0:4.18.0-425.13.1.el8_7 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:bpftool-debuginfo0:4.18.0-425.13.1.el8_7 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel0:4.18.0-425.13.1.el8_7 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-abi-stablelists0:4.18.0-425.13.1.el8_7 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-core0:4.18.0-425.13.1.el8_7 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug0:4.18.0-425.13.1.el8_7 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug-core0:4.18.0-425.13.1.el8_7 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug-debuginfo0:4.18.0-425.13.1.el8_7 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug-devel0:4.18.0-425.13.1.el8_7 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug-modules0:4.18.0-425.13.1.el8_7 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug-modules-extra0:4.18.0-425.13.1.el8_7 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debuginfo0:4.18.0-425.13.1.el8_7 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
suse:kernel-64kb5.14.21-150400.24.184.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSPackage registry (OSV)
suse:kernel-default5.14.21-150400.24.184.1 · SUSE:Linux Enterprise Micro 5.3Package registry (OSV)
suse:kernel-default-base5.14.21-150400.24.184.1.150400.24.94.2 · SUSE:Linux Enterprise Micro 5.3Package registry (OSV)
suse:kernel-docs5.14.21-150400.24.184.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSPackage registry (OSV)
suse:kernel-livepatch-SLE15-SP4_Update_461-150400.9.5.1 · SUSE:Linux Enterprise Live Patching 15 SP4Package registry (OSV)
suse:kernel-livepatch-SLE15-SP5_Update_321-150500.11.3.1 · SUSE:Linux Enterprise Live Patching 15 SP5Package registry (OSV)
suse:kernel-obs-build5.14.21-150400.24.184.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSPackage registry (OSV)
suse:kernel-rt5.14.21-150400.15.136.1 · SUSE:Linux Enterprise Micro 5.3Package registry (OSV)
suse:kernel-source5.14.21-150400.24.184.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSPackage registry (OSV)
suse:kernel-source-rt5.14.21-150400.15.136.1 · SUSE:Linux Enterprise Micro 5.3Package registry (OSV)

+2

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-50302319 days apartHID: core: zero-initialize the report bufferKEV
    52Plan
  • CVE-2026-52989263 days apartnvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers
    39Monitor
  • CVE-2026-53225264 days apartsctp: fix uninit-value in __sctp_rcv_asconf_lookup()
    36Monitor
  • CVE-2024-47685348 days apartnetfilter: nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put()
    36Monitor
  • CVE-2026-53170264 days apartaccel/ethosu: reject DMA commands with uninitialized length
    35Monitor
  • CVE-2026-43139214 days apartxfrm6: fix uninitialized saddr in xfrm6_get_saddr()
    34Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

All records