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CVE-2026-53281

A flaw was found in the Linux kernel's Input-Output Memory Management Unit (IOMMU) virtualized direct memory access (VT-d) component. This vulnerability occurs when the system attempts to perform cleanup operations without a valid device identifier, leading to a null pointer dereference or incorrect management of resource references. An attacker with local access could exploit this to cause a system crash, resulting in a denial of service (DoS).
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2729527658e781d23d842d483ef5734c6ece6820049c70eeccfde31c4ddf625c
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 10 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/affected/7

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/iommu/intel/iommu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9022cb9ac0c2a72a57fa8ebf92ac74f953ca0153","status":"affected","version":"60f030f7418d3f1d94f2fb207fe3080e1844630b","versionType":"git"},{"lessThan":"cdfe3c9f2c9e28a8651ee463c88ad191ced2f840","status":"affected","version":"60f030f7418d3f1d94f2fb207fe3080e1844630b","versionType":"git"},{"lessThan":"79ea2feb917b05366b49d85573c9c5331f043b2c","status":"affected","version":"60f030f7418d3f1d94…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/affected/6

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/iommu/intel/iommu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/cna/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/affected/5

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/affected/2

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/affected/3

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:9","cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"kernel","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:5.14.0-687.31.1.el9_8","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10.2"],"defaultStatus":"affected","packageName":"kernel","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:6.12.0-211.40.1.el10_2","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/affected/4
cvss · 2 assertions

{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/cna/metrics/0/cvssV3_1

{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/metrics/1/cvssV3_1

Affected products and versions

10 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/affected/7
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/iommu/intel/iommu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9022cb9ac0c2a72a57fa8ebf92ac74f953ca0153","status":"affected","version":"60f030f7418d3f1d94f2fb207fe3080e1844630b","versionType":"git"},{"lessThan":"cdfe3c9f2c9e28a8651ee463c88ad191ced2f840","status":"affected","version":"60f030f7418d3f1d94f2fb207fe3080e1844630b","versionType":"git"},{"lessThan":"79ea2feb917b05366b49d85573c9c5331f043b2c","status":"affected","version":"60f030f7418d3f1d94…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/affected/6
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/iommu/intel/iommu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/cna/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/affected/5
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/affected/2
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:enterprise_linux:9","cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"kernel","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:5.14.0-687.31.1.el9_8","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10.2"],"defaultStatus":"affected","packageName":"kernel","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:6.12.0-211.40.1.el10_2","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/affected/4

Provider-owned CVSS observations

2 source assertions
{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/cna/metrics/0/cvssV3_1
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-476","description":"NULL Pointer Dereference","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

8 source assertions
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:47017"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/references/3
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:47040"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/references/4
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-53281"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/references/0
{"name":"RHBZ#2493728","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2493728"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/references/1
{"url":"https://git.kernel.org/stable/c/79ea2feb917b05366b49d85573c9c5331f043b2c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/9022cb9ac0c2a72a57fa8ebf92ac74f953ca0153"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/cdfe3c9f2c9e28a8651ee463c88ad191ced2f840"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/cna/references/1
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53281.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:379f95e59b702d647891f6681ae52769b9fa2a2ebd2020663cb5b02b220d3b0a · sha256:916e3be44499d3cb… · /containers/adp/0/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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