FKIE_CVE-2026-53048

Vulnerability from fkie_nvd - Published: 2026-06-24 17:17 - Updated: 2026-06-24 17:17
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/233a0945a4b1dbe3f38c30afb7d05b76c67f1193
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2fc4c868c9060f424fd4a7cacb0aec5082aba4de
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/74b4dbb946060a3233604d91859a9abd3708141d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/abd73229f0e886a91a16ea781ab656bd9b4d1ee8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cec55674354794eddb80b914f73a6bf9b7fc304a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d8ffae016c4a78693fe1283335d0b6833a9c1366
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e15f16761594e80b15776980b27c35477655a135
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/gfs2/log.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "cec55674354794eddb80b914f73a6bf9b7fc304a",
              "status": "affected",
              "version": "c3c5cfa3170c0940bc66a142859caac07d19b9d6",
              "versionType": "git"
            },
            {
              "lessThan": "2fc4c868c9060f424fd4a7cacb0aec5082aba4de",
              "status": "affected",
              "version": "5f6a84cfb33b34610623857bd93919dcb661e29b",
              "versionType": "git"
            },
            {
              "lessThan": "233a0945a4b1dbe3f38c30afb7d05b76c67f1193",
              "status": "affected",
              "version": "3429ef5f50909cee9e498c50f0c499b9397116ce",
              "versionType": "git"
            },
            {
              "lessThan": "e15f16761594e80b15776980b27c35477655a135",
              "status": "affected",
              "version": "35264909e9d1973ab9aaa2a1b07cda70f12bb828",
              "versionType": "git"
            },
            {
              "lessThan": "d8ffae016c4a78693fe1283335d0b6833a9c1366",
              "status": "affected",
              "version": "35264909e9d1973ab9aaa2a1b07cda70f12bb828",
              "versionType": "git"
            },
            {
              "lessThan": "abd73229f0e886a91a16ea781ab656bd9b4d1ee8",
              "status": "affected",
              "version": "35264909e9d1973ab9aaa2a1b07cda70f12bb828",
              "versionType": "git"
            },
            {
              "lessThan": "74b4dbb946060a3233604d91859a9abd3708141d",
              "status": "affected",
              "version": "35264909e9d1973ab9aaa2a1b07cda70f12bb828",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f54f9d5368a4e92ede7dd078a62788dae3a7c6ef",
              "versionType": "git"
            },
            {
              "lessThan": "5.15.209",
              "status": "affected",
              "version": "5.15.200",
              "versionType": "semver"
            },
            {
              "lessThan": "6.1.175",
              "status": "affected",
              "version": "6.1.162",
              "versionType": "semver"
            },
            {
              "lessThan": "6.6.141",
              "status": "affected",
              "version": "6.6.37",
              "versionType": "semver"
            },
            {
              "lessThan": "6.10",
              "status": "affected",
              "version": "6.9.8",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/gfs2/log.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.141",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.91",
              "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"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-53048",
  "lastModified": "2026-06-24T17:17:16.660",
  "metrics": {},
  "published": "2026-06-24T17:17:16.660",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/233a0945a4b1dbe3f38c30afb7d05b76c67f1193"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2fc4c868c9060f424fd4a7cacb0aec5082aba4de"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/74b4dbb946060a3233604d91859a9abd3708141d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/abd73229f0e886a91a16ea781ab656bd9b4d1ee8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cec55674354794eddb80b914f73a6bf9b7fc304a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d8ffae016c4a78693fe1283335d0b6833a9c1366"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e15f16761594e80b15776980b27c35477655a135"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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