cve-2024-50214
Vulnerability from cvelistv5
Published
2024-11-09 10:14
Modified
2024-12-19 09:35
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/connector: hdmi: Fix memory leak in drm_display_mode_from_cea_vic() modprobe drm_connector_test and then rmmod drm_connector_test, the following memory leak occurs. The `mode` allocated in drm_mode_duplicate() called by drm_display_mode_from_cea_vic() is not freed, which cause the memory leak: unreferenced object 0xffffff80cb0ee400 (size 128): comm "kunit_try_catch", pid 1948, jiffies 4294950339 hex dump (first 32 bytes): 14 44 02 00 80 07 d8 07 04 08 98 08 00 00 38 04 .D............8. 3c 04 41 04 65 04 00 00 05 00 00 00 00 00 00 00 <.A.e........... backtrace (crc 90e9585c): [<00000000ec42e3d7>] kmemleak_alloc+0x34/0x40 [<00000000d0ef055a>] __kmalloc_cache_noprof+0x26c/0x2f4 [<00000000c2062161>] drm_mode_duplicate+0x44/0x19c [<00000000f96c74aa>] drm_display_mode_from_cea_vic+0x88/0x98 [<00000000d8f2c8b4>] 0xffffffdc982a4868 [<000000005d164dbc>] kunit_try_run_case+0x13c/0x3ac [<000000006fb23398>] kunit_generic_run_threadfn_adapter+0x80/0xec [<000000006ea56ca0>] kthread+0x2e8/0x374 [<000000000676063f>] ret_from_fork+0x10/0x20 ...... Free `mode` by using drm_kunit_display_mode_from_cea_vic() to fix it.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/926163342a2e7595d950e84c17c693b1272bd491Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/df2b00685cd33cd85be8910c7d6d22c4ebbf18bbPatch
Impacted products
Vendor Product Version
Linux Linux Version: abb6f74973e20956d42e8227dde6fb4e92502c14
Version: abb6f74973e20956d42e8227dde6fb4e92502c14
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   Linux Linux Version: 6.11
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{
   containers: {
      cna: {
         affected: [
            {
               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
                  "drivers/gpu/drm/tests/drm_connector_test.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     lessThan: "df2b00685cd33cd85be8910c7d6d22c4ebbf18bb",
                     status: "affected",
                     version: "abb6f74973e20956d42e8227dde6fb4e92502c14",
                     versionType: "git",
                  },
                  {
                     lessThan: "926163342a2e7595d950e84c17c693b1272bd491",
                     status: "affected",
                     version: "abb6f74973e20956d42e8227dde6fb4e92502c14",
                     versionType: "git",
                  },
               ],
            },
            {
               defaultStatus: "affected",
               product: "Linux",
               programFiles: [
                  "drivers/gpu/drm/tests/drm_connector_test.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     status: "affected",
                     version: "6.11",
                  },
                  {
                     lessThan: "6.11",
                     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\ndrm/connector: hdmi: Fix memory leak in drm_display_mode_from_cea_vic()\n\nmodprobe drm_connector_test and then rmmod drm_connector_test,\nthe following memory leak occurs.\n\nThe `mode` allocated in drm_mode_duplicate() called by\ndrm_display_mode_from_cea_vic() is not freed, which cause the memory leak:\n\n\tunreferenced object 0xffffff80cb0ee400 (size 128):\n\t  comm \"kunit_try_catch\", pid 1948, jiffies 4294950339\n\t  hex dump (first 32 bytes):\n\t    14 44 02 00 80 07 d8 07 04 08 98 08 00 00 38 04  .D............8.\n\t    3c 04 41 04 65 04 00 00 05 00 00 00 00 00 00 00  <.A.e...........\n\t  backtrace (crc 90e9585c):\n\t    [<00000000ec42e3d7>] kmemleak_alloc+0x34/0x40\n\t    [<00000000d0ef055a>] __kmalloc_cache_noprof+0x26c/0x2f4\n\t    [<00000000c2062161>] drm_mode_duplicate+0x44/0x19c\n\t    [<00000000f96c74aa>] drm_display_mode_from_cea_vic+0x88/0x98\n\t    [<00000000d8f2c8b4>] 0xffffffdc982a4868\n\t    [<000000005d164dbc>] kunit_try_run_case+0x13c/0x3ac\n\t    [<000000006fb23398>] kunit_generic_run_threadfn_adapter+0x80/0xec\n\t    [<000000006ea56ca0>] kthread+0x2e8/0x374\n\t    [<000000000676063f>] ret_from_fork+0x10/0x20\n\t......\n\nFree `mode` by using drm_kunit_display_mode_from_cea_vic()\nto fix it.",
            },
         ],
         providerMetadata: {
            dateUpdated: "2024-12-19T09:35:35.468Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
         },
         references: [
            {
               url: "https://git.kernel.org/stable/c/df2b00685cd33cd85be8910c7d6d22c4ebbf18bb",
            },
            {
               url: "https://git.kernel.org/stable/c/926163342a2e7595d950e84c17c693b1272bd491",
            },
         ],
         title: "drm/connector: hdmi: Fix memory leak in drm_display_mode_from_cea_vic()",
         x_generator: {
            engine: "bippy-5f407fcff5a0",
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2024-50214",
      datePublished: "2024-11-09T10:14:26.138Z",
      dateReserved: "2024-10-21T19:36:19.971Z",
      dateUpdated: "2024-12-19T09:35:35.468Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2024-50214\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-09T11:15:06.777\",\"lastModified\":\"2024-11-13T17:25:55.197\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/connector: hdmi: Fix memory leak in drm_display_mode_from_cea_vic()\\n\\nmodprobe drm_connector_test and then rmmod drm_connector_test,\\nthe following memory leak occurs.\\n\\nThe `mode` allocated in drm_mode_duplicate() called by\\ndrm_display_mode_from_cea_vic() is not freed, which cause the memory leak:\\n\\n\\tunreferenced object 0xffffff80cb0ee400 (size 128):\\n\\t  comm \\\"kunit_try_catch\\\", pid 1948, jiffies 4294950339\\n\\t  hex dump (first 32 bytes):\\n\\t    14 44 02 00 80 07 d8 07 04 08 98 08 00 00 38 04  .D............8.\\n\\t    3c 04 41 04 65 04 00 00 05 00 00 00 00 00 00 00  <.A.e...........\\n\\t  backtrace (crc 90e9585c):\\n\\t    [<00000000ec42e3d7>] kmemleak_alloc+0x34/0x40\\n\\t    [<00000000d0ef055a>] __kmalloc_cache_noprof+0x26c/0x2f4\\n\\t    [<00000000c2062161>] drm_mode_duplicate+0x44/0x19c\\n\\t    [<00000000f96c74aa>] drm_display_mode_from_cea_vic+0x88/0x98\\n\\t    [<00000000d8f2c8b4>] 0xffffffdc982a4868\\n\\t    [<000000005d164dbc>] kunit_try_run_case+0x13c/0x3ac\\n\\t    [<000000006fb23398>] kunit_generic_run_threadfn_adapter+0x80/0xec\\n\\t    [<000000006ea56ca0>] kthread+0x2e8/0x374\\n\\t    [<000000000676063f>] ret_from_fork+0x10/0x20\\n\\t......\\n\\nFree `mode` by using drm_kunit_display_mode_from_cea_vic()\\nto fix it.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/connector: hdmi: Se corrige la pérdida de memoria en drm_display_mode_from_cea_vic() modprobe drm_connector_test y luego rmmod drm_connector_test, se produce la siguiente pérdida de memoria. El `modo` asignado en drm_mode_duplicate() llamado por drm_display_mode_from_cea_vic() no se libera, lo que causa la pérdida de memoria: objeto sin referencia 0xffffff80cb0ee400 (tamaño 128): comm \\\"kunit_try_catch\\\", pid 1948, jiffies 4294950339 volcado hexadecimal (primeros 32 bytes): 14 44 02 00 80 07 d8 07 04 08 98 08 00 00 38 04 .D............8. 3c 04 41 04 65 04 00 00 05 00 00 00 00 00 00 00 &lt;.Ae.......... seguimiento inverso (crc 90e9585c): [&lt;00000000ec42e3d7&gt;] kmemleak_alloc+0x34/0x40 [&lt;00000000d0ef055a&gt;] __kmalloc_cache_noprof+0x26c/0x2f4 [&lt;00000000c2062161&gt;] drm_mode_duplicate+0x44/0x19c [&lt;00000000f96c74aa&gt;] drm_display_mode_from_cea_vic+0x88/0x98 [&lt;00000000d8f2c8b4&gt;] 0xffffffdc982a4868 [&lt;000000005d164dbc&gt;] kunit_try_run_case+0x13c/0x3ac [&lt;000000006fb23398&gt;] kunit_generic_run_threadfn_adapter+0x80/0xec [&lt;000000006ea56ca0&gt;] kthread+0x2e8/0x374 [&lt;000000000676063f&gt;] ret_from_fork+0x10/0x20 ...... Libere el `modo` usando drm_kunit_display_mode_from_cea_vic() para solucionarlo.\"}],\"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\":\"CWE-401\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.11\",\"versionEndExcluding\":\"6.11.7\",\"matchCriteriaId\":\"386941FE-51A4-4893-9EC3-054AD3863E8D\"},{\"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/926163342a2e7595d950e84c17c693b1272bd491\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/df2b00685cd33cd85be8910c7d6d22c4ebbf18bb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
   },
}


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