cve-2024-50260
Vulnerability from cvelistv5
Published
2024-11-09 10:15
Modified
2024-12-19 09:36
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: sock_map: fix a NULL pointer dereference in sock_map_link_update_prog() The following race condition could trigger a NULL pointer dereference: sock_map_link_detach(): sock_map_link_update_prog(): mutex_lock(&sockmap_mutex); ... sockmap_link->map = NULL; mutex_unlock(&sockmap_mutex); mutex_lock(&sockmap_mutex); ... sock_map_prog_link_lookup(sockmap_link->map); mutex_unlock(&sockmap_mutex); <continue> Fix it by adding a NULL pointer check. In this specific case, it makes no sense to update a link which is being released.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/740be3b9a6d73336f8c7d540842d0831dc7a808bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9afe35fdda16e09d5bd3c49a68ba8c680dd678bdPatch
Impacted products
Vendor Product Version
Linux Linux Version: 699c23f02c65cbfc3e638f14ce0d70c23a2e1f02
Version: 699c23f02c65cbfc3e638f14ce0d70c23a2e1f02
 Create a notification for this product.
   Linux Linux Version: 6.10
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
   containers: {
      cna: {
         affected: [
            {
               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
                  "net/core/sock_map.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     lessThan: "9afe35fdda16e09d5bd3c49a68ba8c680dd678bd",
                     status: "affected",
                     version: "699c23f02c65cbfc3e638f14ce0d70c23a2e1f02",
                     versionType: "git",
                  },
                  {
                     lessThan: "740be3b9a6d73336f8c7d540842d0831dc7a808b",
                     status: "affected",
                     version: "699c23f02c65cbfc3e638f14ce0d70c23a2e1f02",
                     versionType: "git",
                  },
               ],
            },
            {
               defaultStatus: "affected",
               product: "Linux",
               programFiles: [
                  "net/core/sock_map.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: "6.11.*",
                     status: "unaffected",
                     version: "6.11.7",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "*",
                     status: "unaffected",
                     version: "6.12",
                     versionType: "original_commit_for_fix",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "In the Linux kernel, the following vulnerability has been resolved:\n\nsock_map: fix a NULL pointer dereference in sock_map_link_update_prog()\n\nThe following race condition could trigger a NULL pointer dereference:\n\nsock_map_link_detach():\t\tsock_map_link_update_prog():\n   mutex_lock(&sockmap_mutex);\n   ...\n   sockmap_link->map = NULL;\n   mutex_unlock(&sockmap_mutex);\n   \t\t\t\t   mutex_lock(&sockmap_mutex);\n\t\t\t\t   ...\n\t\t\t\t   sock_map_prog_link_lookup(sockmap_link->map);\n\t\t\t\t   mutex_unlock(&sockmap_mutex);\n   <continue>\n\nFix it by adding a NULL pointer check. In this specific case, it makes\nno sense to update a link which is being released.",
            },
         ],
         providerMetadata: {
            dateUpdated: "2024-12-19T09:36:45.905Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
         },
         references: [
            {
               url: "https://git.kernel.org/stable/c/9afe35fdda16e09d5bd3c49a68ba8c680dd678bd",
            },
            {
               url: "https://git.kernel.org/stable/c/740be3b9a6d73336f8c7d540842d0831dc7a808b",
            },
         ],
         title: "sock_map: fix a NULL pointer dereference in sock_map_link_update_prog()",
         x_generator: {
            engine: "bippy-5f407fcff5a0",
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2024-50260",
      datePublished: "2024-11-09T10:15:13.271Z",
      dateReserved: "2024-10-21T19:36:19.981Z",
      dateUpdated: "2024-12-19T09:36:45.905Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2024-50260\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-09T11:15:11.550\",\"lastModified\":\"2024-11-13T18:47:43.830\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nsock_map: fix a NULL pointer dereference in sock_map_link_update_prog()\\n\\nThe following race condition could trigger a NULL pointer dereference:\\n\\nsock_map_link_detach():\\t\\tsock_map_link_update_prog():\\n   mutex_lock(&sockmap_mutex);\\n   ...\\n   sockmap_link->map = NULL;\\n   mutex_unlock(&sockmap_mutex);\\n   \\t\\t\\t\\t   mutex_lock(&sockmap_mutex);\\n\\t\\t\\t\\t   ...\\n\\t\\t\\t\\t   sock_map_prog_link_lookup(sockmap_link->map);\\n\\t\\t\\t\\t   mutex_unlock(&sockmap_mutex);\\n   <continue>\\n\\nFix it by adding a NULL pointer check. In this specific case, it makes\\nno sense to update a link which is being released.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: sock_map: corrige una desreferencia de puntero NULL en sock_map_link_update_prog() La siguiente condición de ejecución podría desencadenar una desreferencia de puntero NULL: sock_map_link_detach(): sock_map_link_update_prog(): mutex_lock(&amp;sockmap_mutex); ... sockmap_link-&gt;map = NULL; mutex_unlock(&amp;sockmap_mutex); mutex_lock(&amp;sockmap_mutex); ... sock_map_prog_link_lookup(sockmap_link-&gt;map); mutex_unlock(&amp;sockmap_mutex);  Solucione el problema añadiendo una comprobación de puntero NULL. En este caso específico, no tiene sentido actualizar un enlace que se está publicando.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":4.7,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.10\",\"versionEndExcluding\":\"6.11.7\",\"matchCriteriaId\":\"FFF78B38-3E68-45EF-A942-449C644E7C34\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"7F361E1D-580F-4A2D-A509-7615F73167A1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"925478D0-3E3D-4E6F-ACD5-09F28D5DF82C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"3C95E234-D335-4B6C-96BF-E2CEBD8654ED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"E0F717D8-3014-4F84-8086-0124B2111379\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"24DBE6C7-2AAE-4818-AED2-E131F153D2FA\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/740be3b9a6d73336f8c7d540842d0831dc7a808b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9afe35fdda16e09d5bd3c49a68ba8c680dd678bd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
   },
}


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.