cve-2024-44963
Vulnerability from cvelistv5
Published
2024-09-04 18:36
Modified
2024-12-19 09:19
Severity ?
Summary
btrfs: do not BUG_ON() when freeing tree block after error
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/22d907bcd283d69d5e60497fc0d51969545c583b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/98251cd60b4d702a8a81de442ab621e83a3fb24fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bb3868033a4cccff7be57e9145f2117cbdc91c11Patch
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-44963",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T17:39:41.059166Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-12T17:33:35.583Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/ctree.c",
            "fs/btrfs/extent-tree.c",
            "fs/btrfs/extent-tree.h",
            "fs/btrfs/free-space-tree.c",
            "fs/btrfs/ioctl.c",
            "fs/btrfs/qgroup.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "22d907bcd283d69d5e60497fc0d51969545c583b",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "98251cd60b4d702a8a81de442ab621e83a3fb24f",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "bb3868033a4cccff7be57e9145f2117cbdc91c11",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/ctree.c",
            "fs/btrfs/extent-tree.c",
            "fs/btrfs/extent-tree.h",
            "fs/btrfs/free-space-tree.c",
            "fs/btrfs/ioctl.c",
            "fs/btrfs/qgroup.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.64",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.11",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: do not BUG_ON() when freeing tree block after error\n\nWhen freeing a tree block, at btrfs_free_tree_block(), if we fail to\ncreate a delayed reference we don\u0027t deal with the error and just do a\nBUG_ON(). The error most likely to happen is -ENOMEM, and we have a\ncomment mentioning that only -ENOMEM can happen, but that is not true,\nbecause in case qgroups are enabled any error returned from\nbtrfs_qgroup_trace_extent_post() (can be -EUCLEAN or anything returned\nfrom btrfs_search_slot() for example) can be propagated back to\nbtrfs_free_tree_block().\n\nSo stop doing a BUG_ON() and return the error to the callers and make\nthem abort the transaction to prevent leaking space. Syzbot was\ntriggering this, likely due to memory allocation failure injection."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:19:13.079Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/22d907bcd283d69d5e60497fc0d51969545c583b"
        },
        {
          "url": "https://git.kernel.org/stable/c/98251cd60b4d702a8a81de442ab621e83a3fb24f"
        },
        {
          "url": "https://git.kernel.org/stable/c/bb3868033a4cccff7be57e9145f2117cbdc91c11"
        }
      ],
      "title": "btrfs: do not BUG_ON() when freeing tree block after error",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-44963",
    "datePublished": "2024-09-04T18:36:00.948Z",
    "dateReserved": "2024-08-21T05:34:56.667Z",
    "dateUpdated": "2024-12-19T09:19:13.079Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-44963\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-09-04T19:15:30.883\",\"lastModified\":\"2024-12-09T13:10:03.787\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: do not BUG_ON() when freeing tree block after error\\n\\nWhen freeing a tree block, at btrfs_free_tree_block(), if we fail to\\ncreate a delayed reference we don\u0027t deal with the error and just do a\\nBUG_ON(). The error most likely to happen is -ENOMEM, and we have a\\ncomment mentioning that only -ENOMEM can happen, but that is not true,\\nbecause in case qgroups are enabled any error returned from\\nbtrfs_qgroup_trace_extent_post() (can be -EUCLEAN or anything returned\\nfrom btrfs_search_slot() for example) can be propagated back to\\nbtrfs_free_tree_block().\\n\\nSo stop doing a BUG_ON() and return the error to the callers and make\\nthem abort the transaction to prevent leaking space. Syzbot was\\ntriggering this, likely due to memory allocation failure injection.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: btrfs: no hacer BUG_ON() al liberar un bloque de \u00e1rbol despu\u00e9s de un error Al liberar un bloque de \u00e1rbol, en btrfs_free_tree_block(), si no podemos crear una referencia retrasada, no nos ocupamos del error y simplemente hacemos un BUG_ON(). El error m\u00e1s probable que ocurra es -ENOMEM, y tenemos un comentario que menciona que solo puede ocurrir -ENOMEM, pero eso no es cierto, porque en caso de que los qgroups est\u00e9n habilitados, cualquier error devuelto por btrfs_qgroup_trace_extent_post() (puede ser -EUCLEAN o cualquier cosa devuelta por btrfs_search_slot(), por ejemplo) se puede propagar de vuelta a btrfs_free_tree_block(). As\u00ed que deja de hacer un BUG_ON() y devuelve el error a los llamadores y haz que aborten la transacci\u00f3n para evitar fugas de espacio. Syzbot estaba activando esto, probablemente debido a la inyecci\u00f3n de fallo de asignaci\u00f3n de memoria.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.10.5\",\"matchCriteriaId\":\"E4CB0927-C720-465B-99F2-3E47215515F2\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/22d907bcd283d69d5e60497fc0d51969545c583b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/98251cd60b4d702a8a81de442ab621e83a3fb24f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/bb3868033a4cccff7be57e9145f2117cbdc91c11\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.