cve-2024-40938
Vulnerability from cvelistv5
Published
2024-07-12 12:25
Modified
2024-12-19 09:08
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: landlock: Fix d_parent walk The WARN_ON_ONCE() in collect_domain_accesses() can be triggered when trying to link a root mount point. This cannot work in practice because this directory is mounted, but the VFS check is done after the call to security_path_link(). Do not use source directory's d_parent when the source directory is the mount point. [mic: Fix commit message]
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/88da52ccd66e65f2e63a6c35c9dff55d448ef4dc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b6e5e696435832b33e40775f060ef5c95f4fda1f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c7618c7b0b8c45bcef34410cc1d1e953eb17f8f6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cc30d05b34f9a087a6928d09b131f7b491e9ab11
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/88da52ccd66e65f2e63a6c35c9dff55d448ef4dc
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b6e5e696435832b33e40775f060ef5c95f4fda1f
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c7618c7b0b8c45bcef34410cc1d1e953eb17f8f6
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cc30d05b34f9a087a6928d09b131f7b491e9ab11
Impacted products
Vendor Product Version
Linux Linux Version: b91c3e4ea756b12b7d992529226edce1cfd854d7
Version: b91c3e4ea756b12b7d992529226edce1cfd854d7
Version: b91c3e4ea756b12b7d992529226edce1cfd854d7
Version: b91c3e4ea756b12b7d992529226edce1cfd854d7
 Create a notification for this product.
   Linux Linux Version: 5.19
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
   containers: {
      adp: [
         {
            providerMetadata: {
               dateUpdated: "2024-08-02T04:39:55.945Z",
               orgId: "af854a3a-2127-422b-91ae-364da2661108",
               shortName: "CVE",
            },
            references: [
               {
                  tags: [
                     "x_transferred",
                  ],
                  url: "https://git.kernel.org/stable/c/b6e5e696435832b33e40775f060ef5c95f4fda1f",
               },
               {
                  tags: [
                     "x_transferred",
                  ],
                  url: "https://git.kernel.org/stable/c/cc30d05b34f9a087a6928d09b131f7b491e9ab11",
               },
               {
                  tags: [
                     "x_transferred",
                  ],
                  url: "https://git.kernel.org/stable/c/c7618c7b0b8c45bcef34410cc1d1e953eb17f8f6",
               },
               {
                  tags: [
                     "x_transferred",
                  ],
                  url: "https://git.kernel.org/stable/c/88da52ccd66e65f2e63a6c35c9dff55d448ef4dc",
               },
            ],
            title: "CVE Program Container",
         },
         {
            metrics: [
               {
                  other: {
                     content: {
                        id: "CVE-2024-40938",
                        options: [
                           {
                              Exploitation: "none",
                           },
                           {
                              Automatable: "no",
                           },
                           {
                              "Technical Impact": "partial",
                           },
                        ],
                        role: "CISA Coordinator",
                        timestamp: "2024-09-10T17:04:36.699030Z",
                        version: "2.0.3",
                     },
                     type: "ssvc",
                  },
               },
            ],
            providerMetadata: {
               dateUpdated: "2024-09-11T17:34:26.368Z",
               orgId: "134c704f-9b21-4f2e-91b3-4a467353bcc0",
               shortName: "CISA-ADP",
            },
            title: "CISA ADP Vulnrichment",
         },
      ],
      cna: {
         affected: [
            {
               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
                  "security/landlock/fs.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     lessThan: "b6e5e696435832b33e40775f060ef5c95f4fda1f",
                     status: "affected",
                     version: "b91c3e4ea756b12b7d992529226edce1cfd854d7",
                     versionType: "git",
                  },
                  {
                     lessThan: "cc30d05b34f9a087a6928d09b131f7b491e9ab11",
                     status: "affected",
                     version: "b91c3e4ea756b12b7d992529226edce1cfd854d7",
                     versionType: "git",
                  },
                  {
                     lessThan: "c7618c7b0b8c45bcef34410cc1d1e953eb17f8f6",
                     status: "affected",
                     version: "b91c3e4ea756b12b7d992529226edce1cfd854d7",
                     versionType: "git",
                  },
                  {
                     lessThan: "88da52ccd66e65f2e63a6c35c9dff55d448ef4dc",
                     status: "affected",
                     version: "b91c3e4ea756b12b7d992529226edce1cfd854d7",
                     versionType: "git",
                  },
               ],
            },
            {
               defaultStatus: "affected",
               product: "Linux",
               programFiles: [
                  "security/landlock/fs.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     status: "affected",
                     version: "5.19",
                  },
                  {
                     lessThan: "5.19",
                     status: "unaffected",
                     version: "0",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.1.*",
                     status: "unaffected",
                     version: "6.1.95",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.6.*",
                     status: "unaffected",
                     version: "6.6.35",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.9.*",
                     status: "unaffected",
                     version: "6.9.6",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "*",
                     status: "unaffected",
                     version: "6.10",
                     versionType: "original_commit_for_fix",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "In the Linux kernel, the following vulnerability has been resolved:\n\nlandlock: Fix d_parent walk\n\nThe WARN_ON_ONCE() in collect_domain_accesses() can be triggered when\ntrying to link a root mount point.  This cannot work in practice because\nthis directory is mounted, but the VFS check is done after the call to\nsecurity_path_link().\n\nDo not use source directory's d_parent when the source directory is the\nmount point.\n\n[mic: Fix commit message]",
            },
         ],
         providerMetadata: {
            dateUpdated: "2024-12-19T09:08:33.855Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
         },
         references: [
            {
               url: "https://git.kernel.org/stable/c/b6e5e696435832b33e40775f060ef5c95f4fda1f",
            },
            {
               url: "https://git.kernel.org/stable/c/cc30d05b34f9a087a6928d09b131f7b491e9ab11",
            },
            {
               url: "https://git.kernel.org/stable/c/c7618c7b0b8c45bcef34410cc1d1e953eb17f8f6",
            },
            {
               url: "https://git.kernel.org/stable/c/88da52ccd66e65f2e63a6c35c9dff55d448ef4dc",
            },
         ],
         title: "landlock: Fix d_parent walk",
         x_generator: {
            engine: "bippy-5f407fcff5a0",
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2024-40938",
      datePublished: "2024-07-12T12:25:14.463Z",
      dateReserved: "2024-07-12T12:17:45.584Z",
      dateUpdated: "2024-12-19T09:08:33.855Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2024-40938\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-07-12T13:15:16.247\",\"lastModified\":\"2024-11-21T09:31:54.610\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nlandlock: Fix d_parent walk\\n\\nThe WARN_ON_ONCE() in collect_domain_accesses() can be triggered when\\ntrying to link a root mount point.  This cannot work in practice because\\nthis directory is mounted, but the VFS check is done after the call to\\nsecurity_path_link().\\n\\nDo not use source directory's d_parent when the source directory is the\\nmount point.\\n\\n[mic: Fix commit message]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: landlock: Fix d_parent walk WARN_ON_ONCE() en Collect_domain_accesses() se puede activar al intentar vincular un punto de montaje raíz. Esto no puede funcionar en la práctica porque este directorio está montado, pero la verificación de VFS se realiza después de llamar a security_path_link(). No utilice d_parent del directorio de origen cuando el directorio de origen sea el punto de montaje. [micrófono: Arreglar mensaje de confirmación]\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/88da52ccd66e65f2e63a6c35c9dff55d448ef4dc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b6e5e696435832b33e40775f060ef5c95f4fda1f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c7618c7b0b8c45bcef34410cc1d1e953eb17f8f6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cc30d05b34f9a087a6928d09b131f7b491e9ab11\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/88da52ccd66e65f2e63a6c35c9dff55d448ef4dc\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/b6e5e696435832b33e40775f060ef5c95f4fda1f\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/c7618c7b0b8c45bcef34410cc1d1e953eb17f8f6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/cc30d05b34f9a087a6928d09b131f7b491e9ab11\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
      vulnrichment: {
         containers: "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/b6e5e696435832b33e40775f060ef5c95f4fda1f\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/cc30d05b34f9a087a6928d09b131f7b491e9ab11\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/c7618c7b0b8c45bcef34410cc1d1e953eb17f8f6\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/88da52ccd66e65f2e63a6c35c9dff55d448ef4dc\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T04:39:55.945Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-40938\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T17:04:36.699030Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:22.770Z\"}}], \"cna\": {\"title\": \"landlock: Fix d_parent walk\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"b91c3e4ea756\", \"lessThan\": \"b6e5e6964358\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b91c3e4ea756\", \"lessThan\": \"cc30d05b34f9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b91c3e4ea756\", \"lessThan\": \"c7618c7b0b8c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b91c3e4ea756\", \"lessThan\": \"88da52ccd66e\", \"versionType\": \"git\"}], \"programFiles\": [\"security/landlock/fs.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.19\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.19\", \"versionType\": \"custom\"}, {\"status\": \"unaffected\", \"version\": \"6.1.95\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.35\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.6\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"security/landlock/fs.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/b6e5e696435832b33e40775f060ef5c95f4fda1f\"}, {\"url\": \"https://git.kernel.org/stable/c/cc30d05b34f9a087a6928d09b131f7b491e9ab11\"}, {\"url\": \"https://git.kernel.org/stable/c/c7618c7b0b8c45bcef34410cc1d1e953eb17f8f6\"}, {\"url\": \"https://git.kernel.org/stable/c/88da52ccd66e65f2e63a6c35c9dff55d448ef4dc\"}], \"x_generator\": {\"engine\": \"bippy-c9c4e1df01b2\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nlandlock: Fix d_parent walk\\n\\nThe WARN_ON_ONCE() in collect_domain_accesses() can be triggered when\\ntrying to link a root mount point.  This cannot work in practice because\\nthis directory is mounted, but the VFS check is done after the call to\\nsecurity_path_link().\\n\\nDo not use source directory's d_parent when the source directory is the\\nmount point.\\n\\n[mic: Fix commit message]\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-07-15T06:51:50.058Z\"}}}",
         cveMetadata: "{\"cveId\": \"CVE-2024-40938\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-09-11T17:34:26.368Z\", \"dateReserved\": \"2024-07-12T12:17:45.584Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-07-12T12:25:14.463Z\", \"assignerShortName\": \"Linux\"}",
         dataType: "CVE_RECORD",
         dataVersion: "5.1",
      },
   },
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • 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.