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FKIE_CVE-2026-80963

Vulnerability from fkie_nvd - Published: 2026-09-11 20:19 - Updated: 2026-09-14 13:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: dm-stats: fix a crash if allocation of per-cpu data fails If "dm_kvzalloc(percpu_alloc_size, cpu_to_node(cpu))" fails, the code jumps to the "out" label and calls dm_stat_free. dm_stat_free does "for_each_possible_cpu(cpu) { dm_kvfree(s->stat_percpu[cpu][0].histogram, s->histogram_alloc_size);", which crashes with NULL pointer dereference if s->stat_percpu[cpu] is NULL. This commit fixes the bug by testing s->stat_percpu[cpu] for NULL before using it.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0c8f7870ed3ebd512f090d7714cc2c556b9e5c75
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/389a50d094e13724f5f45e6d9d6ef734c98ba291
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/564d17573ef643c13cf6e9015124a205fa65e704
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/74210fa072960a18bb0eead487585452af722e4f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9805d87d0e26c68ee69da3928e665214d2e2851a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c3f211b7a277dd404b4e7d23095be964b5b46a27
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cc87e26d9cce22061dc21e51e11afef29dbbc36a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e45f0b0c41139810ff395ba2f3cfca1460a5b8a6
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/dm-stats.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e45f0b0c41139810ff395ba2f3cfca1460a5b8a6",
              "status": "affected",
              "version": "fd2ed4d252701d3bbed4cd3e3d267ad469bb832a",
              "versionType": "git"
            },
            {
              "lessThan": "9805d87d0e26c68ee69da3928e665214d2e2851a",
              "status": "affected",
              "version": "fd2ed4d252701d3bbed4cd3e3d267ad469bb832a",
              "versionType": "git"
            },
            {
              "lessThan": "564d17573ef643c13cf6e9015124a205fa65e704",
              "status": "affected",
              "version": "fd2ed4d252701d3bbed4cd3e3d267ad469bb832a",
              "versionType": "git"
            },
            {
              "lessThan": "389a50d094e13724f5f45e6d9d6ef734c98ba291",
              "status": "affected",
              "version": "fd2ed4d252701d3bbed4cd3e3d267ad469bb832a",
              "versionType": "git"
            },
            {
              "lessThan": "c3f211b7a277dd404b4e7d23095be964b5b46a27",
              "status": "affected",
              "version": "fd2ed4d252701d3bbed4cd3e3d267ad469bb832a",
              "versionType": "git"
            },
            {
              "lessThan": "74210fa072960a18bb0eead487585452af722e4f",
              "status": "affected",
              "version": "fd2ed4d252701d3bbed4cd3e3d267ad469bb832a",
              "versionType": "git"
            },
            {
              "lessThan": "0c8f7870ed3ebd512f090d7714cc2c556b9e5c75",
              "status": "affected",
              "version": "fd2ed4d252701d3bbed4cd3e3d267ad469bb832a",
              "versionType": "git"
            },
            {
              "lessThan": "cc87e26d9cce22061dc21e51e11afef29dbbc36a",
              "status": "affected",
              "version": "fd2ed4d252701d3bbed4cd3e3d267ad469bb832a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/dm-stats.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.12"
            },
            {
              "lessThan": "3.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "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\ndm-stats: fix a crash if allocation of per-cpu data fails\n\nIf \"dm_kvzalloc(percpu_alloc_size, cpu_to_node(cpu))\" fails, the code\njumps to the \"out\" label and calls dm_stat_free. dm_stat_free does\n\"for_each_possible_cpu(cpu) { dm_kvfree(s-\u003estat_percpu[cpu][0].histogram,\ns-\u003ehistogram_alloc_size);\", which crashes with NULL pointer dereference\nif s-\u003estat_percpu[cpu] is NULL.\n\nThis commit fixes the bug by testing s-\u003estat_percpu[cpu] for NULL before\nusing it."
    }
  ],
  "id": "CVE-2026-80963",
  "lastModified": "2026-09-14T13:18:50.883",
  "metrics": {},
  "published": "2026-09-11T20:19:02.220",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0c8f7870ed3ebd512f090d7714cc2c556b9e5c75"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/389a50d094e13724f5f45e6d9d6ef734c98ba291"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/564d17573ef643c13cf6e9015124a205fa65e704"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/74210fa072960a18bb0eead487585452af722e4f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9805d87d0e26c68ee69da3928e665214d2e2851a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c3f211b7a277dd404b4e7d23095be964b5b46a27"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cc87e26d9cce22061dc21e51e11afef29dbbc36a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e45f0b0c41139810ff395ba2f3cfca1460a5b8a6"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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