CVE-2026-53048 (GCVE-0-2026-53048)
Vulnerability from cvelistv5
Published
2026-06-24 16:29
Modified
2026-06-24 16:29
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: gfs2: prevent NULL pointer dereference during unmount When flushing out outstanding glock work during an unmount, gfs2_log_flush() can be called when sdp->sd_jdesc has already been deallocated and sdp->sd_jdesc is NULL. Commit 35264909e9d1 ("gfs2: Fix NULL pointer dereference in gfs2_log_flush") added a check for that to gfs2_log_flush() itself, but it missed the sdp->sd_jdesc dereference in gfs2_log_release(). Fix that.
References
Impacted products
Vendor Product Version
Linux Linux Version: c3c5cfa3170c0940bc66a142859caac07d19b9d6
Version: 5f6a84cfb33b34610623857bd93919dcb661e29b
Version: 3429ef5f50909cee9e498c50f0c499b9397116ce
Version: 35264909e9d1973ab9aaa2a1b07cda70f12bb828
Version: 35264909e9d1973ab9aaa2a1b07cda70f12bb828
Version: 35264909e9d1973ab9aaa2a1b07cda70f12bb828
Version: 35264909e9d1973ab9aaa2a1b07cda70f12bb828
Version: f54f9d5368a4e92ede7dd078a62788dae3a7c6ef
Version: 5.15.200   ≤
Version: 6.1.162   ≤
Version: 6.6.37   ≤
Version: 6.9.8   ≤
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{
  "containers": {
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        {
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          "vendor": "Linux",
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: prevent NULL pointer dereference during unmount\n\nWhen flushing out outstanding glock work during an unmount, gfs2_log_flush()\ncan be called when sdp-\u003esd_jdesc has already been deallocated and sdp-\u003esd_jdesc\nis NULL.  Commit 35264909e9d1 (\"gfs2: Fix NULL pointer dereference in\ngfs2_log_flush\") added a check for that to gfs2_log_flush() itself, but it\nmissed the sdp-\u003esd_jdesc dereference in gfs2_log_release().  Fix that."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-24T16:29:54.268Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/cec55674354794eddb80b914f73a6bf9b7fc304a"
        },
        {
          "url": "https://git.kernel.org/stable/c/2fc4c868c9060f424fd4a7cacb0aec5082aba4de"
        },
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          "url": "https://git.kernel.org/stable/c/233a0945a4b1dbe3f38c30afb7d05b76c67f1193"
        },
        {
          "url": "https://git.kernel.org/stable/c/e15f16761594e80b15776980b27c35477655a135"
        },
        {
          "url": "https://git.kernel.org/stable/c/d8ffae016c4a78693fe1283335d0b6833a9c1366"
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        {
          "url": "https://git.kernel.org/stable/c/abd73229f0e886a91a16ea781ab656bd9b4d1ee8"
        },
        {
          "url": "https://git.kernel.org/stable/c/74b4dbb946060a3233604d91859a9abd3708141d"
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      ],
      "title": "gfs2: prevent NULL pointer dereference during unmount",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53048",
    "datePublished": "2026-06-24T16:29:54.268Z",
    "dateReserved": "2026-06-09T07:44:35.381Z",
    "dateUpdated": "2026-06-24T16:29:54.268Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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