CVE-2026-90428 (GCVE-0-2026-90428)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:09 – Updated: 2026-09-17 16:09
VLAI
Title
iommu/tegra241-cmdqv: Don't run the error ISR before probe sets up vintfs
Summary
In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Don't run the error ISR before probe sets up vintfs __tegra241_cmdqv_probe() requests the error IRQ before it has allocated the cmdqv->vintfs array and set cmdqv->num_vintfs. A CMDQV left enabled with a latched error across a kexec fires the IRQ as soon as it is requested, and tegra241_cmdqv_isr() then walks the uninitialized cmdqv->vintfs array. Request the IRQ only after cmdqv->vintfs is allocated and zeroed, so that a latched interrupt firing early runs the ISR against a valid array of NULL slots that it safely skips.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 918eb5c856f6ce4cf93b4b38e4b5e156905c5943 , < b1605a56745f22670205f6561df5771bbbb62a99 (git)
Affected: 918eb5c856f6ce4cf93b4b38e4b5e156905c5943 , < 2f627118b668659c6b195ac48beedb1bf8f53368 (git)
Affected: 918eb5c856f6ce4cf93b4b38e4b5e156905c5943 , < a168254ff8db08f2292be3d8fcbd37d2bb8c3d2d (git)
Affected: 918eb5c856f6ce4cf93b4b38e4b5e156905c5943 , < 5acd67ceb38debe2fbf70ea35e2dec9f7ab01bbd (git)
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Linux Linux Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.52 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
            "drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/tegra241-cmdqv: Don\u0027t run the error ISR before probe sets up vintfs\n\n__tegra241_cmdqv_probe() requests the error IRQ before it has allocated the\ncmdqv-\u003evintfs array and set cmdqv-\u003enum_vintfs. A CMDQV left enabled with a\nlatched error across a kexec fires the IRQ as soon as it is requested, and\ntegra241_cmdqv_isr() then walks the uninitialized cmdqv-\u003evintfs array.\n\nRequest the IRQ only after cmdqv-\u003evintfs is allocated and zeroed, so that\na latched interrupt firing early runs the ISR against a valid array of NULL\nslots that it safely skips."
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "title": "iommu/tegra241-cmdqv: Don\u0027t run the error ISR before probe sets up vintfs",
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    "assignerShortName": "Linux",
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    "datePublished": "2026-09-17T16:09:49.783Z",
    "dateReserved": "2026-09-11T19:38:34.814Z",
    "dateUpdated": "2026-09-17T16:09:49.783Z",
    "state": "PUBLISHED"
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  "vulnerability-lookup:meta": {
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        "cveTags": [],
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            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/tegra241-cmdqv: Don\u0027t run the error ISR before probe sets up vintfs\n\n__tegra241_cmdqv_probe() requests the error IRQ before it has allocated the\ncmdqv-\u003evintfs array and set cmdqv-\u003enum_vintfs. A CMDQV left enabled with a\nlatched error across a kexec fires the IRQ as soon as it is requested, and\ntegra241_cmdqv_isr() then walks the uninitialized cmdqv-\u003evintfs array.\n\nRequest the IRQ only after cmdqv-\u003evintfs is allocated and zeroed, so that\na latched interrupt firing early runs the ISR against a valid array of NULL\nslots that it safely skips."
          }
        ],
        "id": "CVE-2026-90428",
        "lastModified": "2026-09-17T17:17:47.643",
        "metrics": {},
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      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-90428",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-90428.json",
      "version": "4"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.