Vulnerability-Lookup

GHSA-MJ99-X9W6-H3M8

Vulnerability from github – Published: 2025-09-15 15:31 – Updated: 2025-11-24 18:31

Details

In the Linux kernel, the following vulnerability has been resolved:

iommu/mediatek: Fix crash on isr after kexec()

If the system is rebooted via isr(), the IRQ handler might be triggered before the domain is initialized. Resulting on an invalid memory access error.

Fix: [ 0.500930] Unable to handle kernel read from unreadable memory at virtual address 0000000000000070 [ 0.501166] Call trace: [ 0.501174] report_iommu_fault+0x28/0xfc [ 0.501180] mtk_iommu_isr+0x10c/0x1c0

[ joro: Fixed spelling in commit message ]

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50236"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-908"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-15T14:15:34Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/mediatek: Fix crash on isr after kexec()\n\nIf the system is rebooted via isr(), the IRQ handler might\nbe triggered before the domain is initialized. Resulting on\nan invalid memory access error.\n\nFix:\n[    0.500930] Unable to handle kernel read from unreadable memory at virtual address 0000000000000070\n[    0.501166] Call trace:\n[    0.501174]  report_iommu_fault+0x28/0xfc\n[    0.501180]  mtk_iommu_isr+0x10c/0x1c0\n\n[ joro: Fixed spelling in commit message ]",
  "id": "GHSA-mj99-x9w6-h3m8",
  "modified": "2025-11-24T18:31:08Z",
  "published": "2025-09-15T15:31:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50236"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/00ef8885a945c37551547d8ac8361cacd20c4e42"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/85cc8a187f2de7a91e2cea522e9406fa12999269"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f13acee780cedb3e06a6dadf64d9104cccd2b9fc"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-50236 (GCVE-0-2022-50236)

Vulnerability from cvelistv5 – Published: 2025-09-15 14:01 – Updated: 2026-05-11 19:15

Title

iommu/mediatek: Fix crash on isr after kexec()

Summary

In the Linux kernel, the following vulnerability has been resolved: iommu/mediatek: Fix crash on isr after kexec() If the system is rebooted via isr(), the IRQ handler might be triggered before the domain is initialized. Resulting on an invalid memory access error. Fix: [ 0.500930] Unable to handle kernel read from unreadable memory at virtual address 0000000000000070 [ 0.501166] Call trace: [ 0.501174] report_iommu_fault+0x28/0xfc [ 0.501180] mtk_iommu_isr+0x10c/0x1c0 [ joro: Fixed spelling in commit message ]

Severity

No CVSS data available.

Assigner

Linux mitre root Scorecard

References

3 references

URL	Tags
https://git.kernel.org/stable/c/f13acee780cedb3e0…
https://git.kernel.org/stable/c/85cc8a187f2de7a91…
https://git.kernel.org/stable/c/00ef8885a945c3755…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0df4fabe208d9576f2671d31e77cf46d20fdcd01 , < f13acee780cedb3e06a6dadf64d9104cccd2b9fc (git) Affected: 0df4fabe208d9576f2671d31e77cf46d20fdcd01 , < 85cc8a187f2de7a91e2cea522e9406fa12999269 (git) Affected: 0df4fabe208d9576f2671d31e77cf46d20fdcd01 , < 00ef8885a945c37551547d8ac8361cacd20c4e42 (git)
Linux	Linux	Affected: 4.6 Unaffected: 0 , < 4.6 (semver) Unaffected: 6.0.17 , ≤ 6.0.* (semver) Unaffected: 6.1.3 , ≤ 6.1.* (semver) Unaffected: 6.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iommu/mtk_iommu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "85cc8a187f2de7a91e2cea522e9406fa12999269",
              "status": "affected",
              "version": "0df4fabe208d9576f2671d31e77cf46d20fdcd01",
              "versionType": "git"
            },
            {
              "lessThan": "00ef8885a945c37551547d8ac8361cacd20c4e42",
              "status": "affected",
              "version": "0df4fabe208d9576f2671d31e77cf46d20fdcd01",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/iommu/mtk_iommu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.6"
            },
            {
              "lessThan": "4.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.17",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.1.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "4.6",
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                  "versionStartIncluding": "4.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/mediatek: Fix crash on isr after kexec()\n\nIf the system is rebooted via isr(), the IRQ handler might\nbe triggered before the domain is initialized. Resulting on\nan invalid memory access error.\n\nFix:\n[    0.500930] Unable to handle kernel read from unreadable memory at virtual address 0000000000000070\n[    0.501166] Call trace:\n[    0.501174]  report_iommu_fault+0x28/0xfc\n[    0.501180]  mtk_iommu_isr+0x10c/0x1c0\n\n[ joro: Fixed spelling in commit message ]"
        }
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      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:15:26.705Z",
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    "dateReserved": "2025-06-18T10:57:27.433Z",
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Sightings

Author	Source	Type	Date	Other

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-MJ99-X9W6-H3M8

CVE-2022-50236 (GCVE-0-2022-50236)

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