CVE-2026-43262 (GCVE-0-2026-43262)
Vulnerability from cvelistv5
Published
2026-05-06 11:28
Modified
2026-05-11 22:21
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: gfs2: fiemap page fault fix In gfs2_fiemap(), we are calling iomap_fiemap() while holding the inode glock. This can lead to recursive glock taking if the fiemap buffer is memory mapped to the same inode and accessing it triggers a page fault. Fix by disabling page faults for iomap_fiemap() and faulting in the buffer by hand if necessary. Fixes xfstest generic/742.
References
Impacted products
Vendor Product Version
Linux Linux Version: e9079cce201784632aed4b1a3121ee38c1ced0b6
Version: e9079cce201784632aed4b1a3121ee38c1ced0b6
Version: e9079cce201784632aed4b1a3121ee38c1ced0b6
Version: e9079cce201784632aed4b1a3121ee38c1ced0b6
Version: e9079cce201784632aed4b1a3121ee38c1ced0b6
Version: e9079cce201784632aed4b1a3121ee38c1ced0b6
Version: e9079cce201784632aed4b1a3121ee38c1ced0b6
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{
  "containers": {
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          "defaultStatus": "unaffected",
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          "programFiles": [
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "versionType": "semver"
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: fiemap page fault fix\n\nIn gfs2_fiemap(), we are calling iomap_fiemap() while holding the inode\nglock.  This can lead to recursive glock taking if the fiemap buffer is\nmemory mapped to the same inode and accessing it triggers a page fault.\n\nFix by disabling page faults for iomap_fiemap() and faulting in the\nbuffer by hand if necessary.\n\nFixes xfstest generic/742."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:21:09.600Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5d5d9ec957bfa1eb2b05861c19f5d701dd006db7"
        },
        {
          "url": "https://git.kernel.org/stable/c/cead3bebf3e318578b8a86a5472015d713d2a8a8"
        },
        {
          "url": "https://git.kernel.org/stable/c/e428670cfb2993d8c224effd076242ca6b0950de"
        },
        {
          "url": "https://git.kernel.org/stable/c/5d2c4f182ea8516de8682e2b60411c03df00e3ea"
        },
        {
          "url": "https://git.kernel.org/stable/c/2e121c53b581e40397ae08090a7af4ed10781fbc"
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        {
          "url": "https://git.kernel.org/stable/c/9d15fee888f0e8938c9aeed71ec9c2cbba0c88ab"
        },
        {
          "url": "https://git.kernel.org/stable/c/e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2"
        }
      ],
      "title": "gfs2: fiemap page fault fix",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43262",
    "datePublished": "2026-05-06T11:28:49.480Z",
    "dateReserved": "2026-05-01T14:12:55.997Z",
    "dateUpdated": "2026-05-11T22:21:09.600Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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