Vulnerability-Lookup

CVE-2026-53048 (GCVE-0-2026-53048)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:29 – Updated: 2026-06-24 16:29

Title

gfs2: prevent NULL pointer dereference during unmount

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.

Severity

No CVSS data available.

Assigner

Linux

References

7 references

URL	Tags
https://git.kernel.org/stable/c/cec55674354794edd…
https://git.kernel.org/stable/c/2fc4c868c9060f424…
https://git.kernel.org/stable/c/233a0945a4b1dbe3f…
https://git.kernel.org/stable/c/e15f16761594e80b1…
https://git.kernel.org/stable/c/d8ffae016c4a78693…
https://git.kernel.org/stable/c/abd73229f0e886a91…
https://git.kernel.org/stable/c/74b4dbb946060a323…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: c3c5cfa3170c0940bc66a142859caac07d19b9d6 , < cec55674354794eddb80b914f73a6bf9b7fc304a (git) Affected: 5f6a84cfb33b34610623857bd93919dcb661e29b , < 2fc4c868c9060f424fd4a7cacb0aec5082aba4de (git) Affected: 3429ef5f50909cee9e498c50f0c499b9397116ce , < 233a0945a4b1dbe3f38c30afb7d05b76c67f1193 (git) Affected: 35264909e9d1973ab9aaa2a1b07cda70f12bb828 , < e15f16761594e80b15776980b27c35477655a135 (git) Affected: 35264909e9d1973ab9aaa2a1b07cda70f12bb828 , < d8ffae016c4a78693fe1283335d0b6833a9c1366 (git) Affected: 35264909e9d1973ab9aaa2a1b07cda70f12bb828 , < abd73229f0e886a91a16ea781ab656bd9b4d1ee8 (git) Affected: 35264909e9d1973ab9aaa2a1b07cda70f12bb828 , < 74b4dbb946060a3233604d91859a9abd3708141d (git) Affected: f54f9d5368a4e92ede7dd078a62788dae3a7c6ef (git) Affected: 5.15.200 , < 5.15.209 (semver) Affected: 6.1.162 , < 6.1.175 (semver) Affected: 6.6.37 , < 6.6.141 (semver) Affected: 6.9.8 , < 6.10 (semver)
Linux	Linux	Affected: 6.10 Unaffected: 0 , < 6.10 (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.141 , ≤ 6.6.* (semver) Unaffected: 6.12.91 , ≤ 6.12.* (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "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": [
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              "versionType": "git"
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              "versionType": "semver"
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              "versionType": "semver"
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          ],
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          "vendor": "Linux",
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              "version": "6.10"
            },
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              "status": "unaffected",
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              "versionType": "semver"
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            },
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              "version": "6.6.141",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.12.91",
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            },
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              "status": "unaffected",
              "version": "6.18.33",
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            },
            {
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              "status": "unaffected",
              "version": "7.0.10",
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.209",
                  "versionStartIncluding": "5.15.200",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.1.175",
                  "versionStartIncluding": "6.1.162",
                  "vulnerable": true
                },
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
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                  "vulnerable": true
                },
                {
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                  "versionStartIncluding": "6.9.8",
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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": [
        {
          "url": "https://git.kernel.org/stable/c/cec55674354794eddb80b914f73a6bf9b7fc304a"
        },
        {
          "url": "https://git.kernel.org/stable/c/2fc4c868c9060f424fd4a7cacb0aec5082aba4de"
        },
        {
          "url": "https://git.kernel.org/stable/c/233a0945a4b1dbe3f38c30afb7d05b76c67f1193"
        },
        {
          "url": "https://git.kernel.org/stable/c/e15f16761594e80b15776980b27c35477655a135"
        },
        {
          "url": "https://git.kernel.org/stable/c/d8ffae016c4a78693fe1283335d0b6833a9c1366"
        },
        {
          "url": "https://git.kernel.org/stable/c/abd73229f0e886a91a16ea781ab656bd9b4d1ee8"
        },
        {
          "url": "https://git.kernel.org/stable/c/74b4dbb946060a3233604d91859a9abd3708141d"
        }
      ],
      "title": "gfs2: prevent NULL pointer dereference during unmount",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "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",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-53048",
      "date": "2026-07-05",
      "epss": "0.00172",
      "percentile": "0.06877"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-53048\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-06-24T17:17:16.660\",\"lastModified\":\"2026-06-24T17:17:16.660\",\"vulnStatus\":\"Received\",\"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.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"fs/gfs2/log.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"c3c5cfa3170c0940bc66a142859caac07d19b9d6\",\"lessThan\":\"cec55674354794eddb80b914f73a6bf9b7fc304a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5f6a84cfb33b34610623857bd93919dcb661e29b\",\"lessThan\":\"2fc4c868c9060f424fd4a7cacb0aec5082aba4de\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3429ef5f50909cee9e498c50f0c499b9397116ce\",\"lessThan\":\"233a0945a4b1dbe3f38c30afb7d05b76c67f1193\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"35264909e9d1973ab9aaa2a1b07cda70f12bb828\",\"lessThan\":\"e15f16761594e80b15776980b27c35477655a135\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"35264909e9d1973ab9aaa2a1b07cda70f12bb828\",\"lessThan\":\"d8ffae016c4a78693fe1283335d0b6833a9c1366\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"35264909e9d1973ab9aaa2a1b07cda70f12bb828\",\"lessThan\":\"abd73229f0e886a91a16ea781ab656bd9b4d1ee8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"35264909e9d1973ab9aaa2a1b07cda70f12bb828\",\"lessThan\":\"74b4dbb946060a3233604d91859a9abd3708141d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f54f9d5368a4e92ede7dd078a62788dae3a7c6ef\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5.15.200\",\"lessThan\":\"5.15.209\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.1.162\",\"lessThan\":\"6.1.175\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.6.37\",\"lessThan\":\"6.6.141\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.9.8\",\"lessThan\":\"6.10\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"fs/gfs2/log.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.10\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.10\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.209\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.175\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.141\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.91\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.33\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0.10\",\"lessThanOrEqual\":\"7.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"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\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}

FKIE_CVE-2026-53048

Vulnerability from fkie_nvd - Published: 2026-06-24 17:17 - Updated: 2026-06-24 17:17

Severity

Summary

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/233a0945a4b1dbe3f38c30afb7d05b76c67f1193
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2fc4c868c9060f424fd4a7cacb0aec5082aba4de
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/74b4dbb946060a3233604d91859a9abd3708141d
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/abd73229f0e886a91a16ea781ab656bd9b4d1ee8
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/cec55674354794eddb80b914f73a6bf9b7fc304a
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d8ffae016c4a78693fe1283335d0b6833a9c1366
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e15f16761594e80b15776980b27c35477655a135

Impacted products

	Vendor	Product	Version

JSON

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": [
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              "status": "affected",
              "version": "c3c5cfa3170c0940bc66a142859caac07d19b9d6",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "5f6a84cfb33b34610623857bd93919dcb661e29b",
              "versionType": "git"
            },
            {
              "lessThan": "233a0945a4b1dbe3f38c30afb7d05b76c67f1193",
              "status": "affected",
              "version": "3429ef5f50909cee9e498c50f0c499b9397116ce",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "35264909e9d1973ab9aaa2a1b07cda70f12bb828",
              "versionType": "git"
            },
            {
              "lessThan": "d8ffae016c4a78693fe1283335d0b6833a9c1366",
              "status": "affected",
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              "versionType": "git"
            },
            {
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              "versionType": "git"
            },
            {
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              "versionType": "git"
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              "version": "f54f9d5368a4e92ede7dd078a62788dae3a7c6ef",
              "versionType": "git"
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              "status": "affected",
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              "versionType": "semver"
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              "versionType": "semver"
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        },
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          ],
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          "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"
}

GHSA-X2X3-CMVW-67W8

Vulnerability from github – Published: 2026-06-24 18:32 – Updated: 2026-06-24 18:32

Details

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.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-53048"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-24T17:17:16Z",
    "severity": null
  },
  "details": "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": "GHSA-x2x3-cmvw-67w8",
  "modified": "2026-06-24T18:32:45Z",
  "published": "2026-06-24T18:32:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53048"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/233a0945a4b1dbe3f38c30afb7d05b76c67f1193"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2fc4c868c9060f424fd4a7cacb0aec5082aba4de"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/74b4dbb946060a3233604d91859a9abd3708141d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/abd73229f0e886a91a16ea781ab656bd9b4d1ee8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cec55674354794eddb80b914f73a6bf9b7fc304a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d8ffae016c4a78693fe1283335d0b6833a9c1366"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e15f16761594e80b15776980b27c35477655a135"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

MSRC_CVE-2026-53048

Vulnerability from csaf_microsoft - Published: 2026-06-02 00:00 - Updated: 2026-07-03 01:02

Summary

gfs2: prevent NULL pointer dereference during unmount

Notes

Additional Resources: To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

Disclaimer: The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

CVE-2026-53048

Affected products

Known not affected 1 product

Product	Identifier	Version	Remediation
Unresolved product id: 17084-1		—

References

4 references

URL	Category
https://msrc.microsoft.com/csaf/vex/2026/msrc_cve…	self
https://support.microsoft.com/lifecycle	external
https://www.first.org/cvss	external
https://msrc.microsoft.com/csaf/vex/2026/msrc_cve…	self

JSON

To clipboard

{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2026-53048 gfs2: prevent NULL pointer dereference during unmount - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-53048.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "gfs2: prevent NULL pointer dereference during unmount",
    "tracking": {
      "current_release_date": "2026-07-03T01:02:17.000Z",
      "generator": {
        "date": "2026-07-03T07:14:17.386Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2026-53048",
      "initial_release_date": "2026-06-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-06-27T01:15:27.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2026-07-03T01:02:17.000Z",
          "legacy_version": "2",
          "number": "2",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
                  "product_id": "17084"
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
          },
          {
            "category": "product_name",
            "name": "azl3 kernel 0:6.6.139.1-1.azl3",
            "product": {
              "name": "azl3 kernel 0:6.6.139.1-1.azl3",
              "product_id": "1"
            }
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 kernel 0:6.6.139.1-1.azl3 as a component of Azure Linux 3.0",
          "product_id": "17084-1"
        },
        "product_reference": "1",
        "relates_to_product_reference": "17084"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-53048",
      "flags": [
        {
          "label": "vulnerable_code_not_present",
          "product_ids": [
            "17084-1"
          ]
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Linux",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "known_not_affected": [
          "17084-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-53048 gfs2: prevent NULL pointer dereference during unmount - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-53048.json"
        }
      ],
      "title": "gfs2: prevent NULL pointer dereference during unmount"
    }
  ]
}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2026-53048 (GCVE-0-2026-53048)

FKIE_CVE-2026-53048

GHSA-X2X3-CMVW-67W8

MSRC_CVE-2026-53048

Tags

Sightings

Nomenclature