cve-2024-56534
Vulnerability from cvelistv5
Published
2024-12-27 14:11
Modified
2025-01-20 06:22
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: isofs: avoid memory leak in iocharset A memleak was found as below: unreferenced object 0xffff0000d10164d8 (size 8): comm "pool-udisksd", pid 108217, jiffies 4295408555 hex dump (first 8 bytes): 75 74 66 38 00 cc cc cc utf8.... backtrace (crc de430d31): [<ffff800081046e6c>] kmemleak_alloc+0xb8/0xc8 [<ffff8000803e6c3c>] __kmalloc_node_track_caller_noprof+0x380/0x474 [<ffff800080363b74>] kstrdup+0x70/0xfc [<ffff80007bb3c6a4>] isofs_parse_param+0x228/0x2c0 [isofs] [<ffff8000804d7f68>] vfs_parse_fs_param+0xf4/0x164 [<ffff8000804d8064>] vfs_parse_fs_string+0x8c/0xd4 [<ffff8000804d815c>] vfs_parse_monolithic_sep+0xb0/0xfc [<ffff8000804d81d8>] generic_parse_monolithic+0x30/0x3c [<ffff8000804d8bfc>] parse_monolithic_mount_data+0x40/0x4c [<ffff8000804b6a64>] path_mount+0x6c4/0x9ec [<ffff8000804b6e38>] do_mount+0xac/0xc4 [<ffff8000804b7494>] __arm64_sys_mount+0x16c/0x2b0 [<ffff80008002b8dc>] invoke_syscall+0x7c/0x104 [<ffff80008002ba44>] el0_svc_common.constprop.1+0xe0/0x104 [<ffff80008002ba94>] do_el0_svc+0x2c/0x38 [<ffff800081041108>] el0_svc+0x3c/0x1b8 The opt->iocharset is freed inside the isofs_fill_super function, But there may be situations where it's not possible to enter this function. For example, in the get_tree_bdev_flags function,when encountering the situation where "Can't mount, would change RO state," In such a case, isofs_fill_super will not have the opportunity to be called,which means that opt->iocharset will not have the chance to be freed,ultimately leading to a memory leak. Let's move the memory freeing of opt->iocharset into isofs_free_fc function.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0b5bbeee4de616a268db77e2f40f19ab010a367bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0fbab266ca8000333c966f5b58cb9b9cac658573Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/34f090ddb3630a26e5a6b220bf3bfaf5c7b70393Patch
Impacted products
Vendor Product Version
Linux Linux Version: 1b17a46c9243e9421ee1ac6d628604bbc4ae2201
Version: 1b17a46c9243e9421ee1ac6d628604bbc4ae2201
Version: 1b17a46c9243e9421ee1ac6d628604bbc4ae2201
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   Linux Linux Version: 6.10
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/isofs/inode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "34f090ddb3630a26e5a6b220bf3bfaf5c7b70393",
              "status": "affected",
              "version": "1b17a46c9243e9421ee1ac6d628604bbc4ae2201",
              "versionType": "git"
            },
            {
              "lessThan": "0fbab266ca8000333c966f5b58cb9b9cac658573",
              "status": "affected",
              "version": "1b17a46c9243e9421ee1ac6d628604bbc4ae2201",
              "versionType": "git"
            },
            {
              "lessThan": "0b5bbeee4de616a268db77e2f40f19ab010a367b",
              "status": "affected",
              "version": "1b17a46c9243e9421ee1ac6d628604bbc4ae2201",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/isofs/inode.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": "6.11.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nisofs: avoid memory leak in iocharset\n\nA memleak was found as below:\n\nunreferenced object 0xffff0000d10164d8 (size 8):\n  comm \"pool-udisksd\", pid 108217, jiffies 4295408555\n  hex dump (first 8 bytes):\n    75 74 66 38 00 cc cc cc                          utf8....\n  backtrace (crc de430d31):\n    [\u003cffff800081046e6c\u003e] kmemleak_alloc+0xb8/0xc8\n    [\u003cffff8000803e6c3c\u003e] __kmalloc_node_track_caller_noprof+0x380/0x474\n    [\u003cffff800080363b74\u003e] kstrdup+0x70/0xfc\n    [\u003cffff80007bb3c6a4\u003e] isofs_parse_param+0x228/0x2c0 [isofs]\n    [\u003cffff8000804d7f68\u003e] vfs_parse_fs_param+0xf4/0x164\n    [\u003cffff8000804d8064\u003e] vfs_parse_fs_string+0x8c/0xd4\n    [\u003cffff8000804d815c\u003e] vfs_parse_monolithic_sep+0xb0/0xfc\n    [\u003cffff8000804d81d8\u003e] generic_parse_monolithic+0x30/0x3c\n    [\u003cffff8000804d8bfc\u003e] parse_monolithic_mount_data+0x40/0x4c\n    [\u003cffff8000804b6a64\u003e] path_mount+0x6c4/0x9ec\n    [\u003cffff8000804b6e38\u003e] do_mount+0xac/0xc4\n    [\u003cffff8000804b7494\u003e] __arm64_sys_mount+0x16c/0x2b0\n    [\u003cffff80008002b8dc\u003e] invoke_syscall+0x7c/0x104\n    [\u003cffff80008002ba44\u003e] el0_svc_common.constprop.1+0xe0/0x104\n    [\u003cffff80008002ba94\u003e] do_el0_svc+0x2c/0x38\n    [\u003cffff800081041108\u003e] el0_svc+0x3c/0x1b8\n\nThe opt-\u003eiocharset is freed inside the isofs_fill_super function,\nBut there may be situations where it\u0027s not possible to\nenter this function.\n\nFor example, in the get_tree_bdev_flags function,when\nencountering the situation where \"Can\u0027t mount, would change RO state,\"\nIn such a case, isofs_fill_super will not have the opportunity\nto be called,which means that opt-\u003eiocharset will not have the chance\nto be freed,ultimately leading to a memory leak.\n\nLet\u0027s move the memory freeing of opt-\u003eiocharset into\nisofs_free_fc function."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-01-20T06:22:25.150Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/34f090ddb3630a26e5a6b220bf3bfaf5c7b70393"
        },
        {
          "url": "https://git.kernel.org/stable/c/0fbab266ca8000333c966f5b58cb9b9cac658573"
        },
        {
          "url": "https://git.kernel.org/stable/c/0b5bbeee4de616a268db77e2f40f19ab010a367b"
        }
      ],
      "title": "isofs: avoid memory leak in iocharset",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-56534",
    "datePublished": "2024-12-27T14:11:17.091Z",
    "dateReserved": "2024-12-27T14:03:05.985Z",
    "dateUpdated": "2025-01-20T06:22:25.150Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-56534\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-12-27T14:15:32.940\",\"lastModified\":\"2025-01-14T15:49:15.640\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nisofs: avoid memory leak in iocharset\\n\\nA memleak was found as below:\\n\\nunreferenced object 0xffff0000d10164d8 (size 8):\\n  comm \\\"pool-udisksd\\\", pid 108217, jiffies 4295408555\\n  hex dump (first 8 bytes):\\n    75 74 66 38 00 cc cc cc                          utf8....\\n  backtrace (crc de430d31):\\n    [\u003cffff800081046e6c\u003e] kmemleak_alloc+0xb8/0xc8\\n    [\u003cffff8000803e6c3c\u003e] __kmalloc_node_track_caller_noprof+0x380/0x474\\n    [\u003cffff800080363b74\u003e] kstrdup+0x70/0xfc\\n    [\u003cffff80007bb3c6a4\u003e] isofs_parse_param+0x228/0x2c0 [isofs]\\n    [\u003cffff8000804d7f68\u003e] vfs_parse_fs_param+0xf4/0x164\\n    [\u003cffff8000804d8064\u003e] vfs_parse_fs_string+0x8c/0xd4\\n    [\u003cffff8000804d815c\u003e] vfs_parse_monolithic_sep+0xb0/0xfc\\n    [\u003cffff8000804d81d8\u003e] generic_parse_monolithic+0x30/0x3c\\n    [\u003cffff8000804d8bfc\u003e] parse_monolithic_mount_data+0x40/0x4c\\n    [\u003cffff8000804b6a64\u003e] path_mount+0x6c4/0x9ec\\n    [\u003cffff8000804b6e38\u003e] do_mount+0xac/0xc4\\n    [\u003cffff8000804b7494\u003e] __arm64_sys_mount+0x16c/0x2b0\\n    [\u003cffff80008002b8dc\u003e] invoke_syscall+0x7c/0x104\\n    [\u003cffff80008002ba44\u003e] el0_svc_common.constprop.1+0xe0/0x104\\n    [\u003cffff80008002ba94\u003e] do_el0_svc+0x2c/0x38\\n    [\u003cffff800081041108\u003e] el0_svc+0x3c/0x1b8\\n\\nThe opt-\u003eiocharset is freed inside the isofs_fill_super function,\\nBut there may be situations where it\u0027s not possible to\\nenter this function.\\n\\nFor example, in the get_tree_bdev_flags function,when\\nencountering the situation where \\\"Can\u0027t mount, would change RO state,\\\"\\nIn such a case, isofs_fill_super will not have the opportunity\\nto be called,which means that opt-\u003eiocharset will not have the chance\\nto be freed,ultimately leading to a memory leak.\\n\\nLet\u0027s move the memory freeing of opt-\u003eiocharset into\\nisofs_free_fc function.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: isofs: evitar p\u00e9rdida de memoria en iocharset Se encontr\u00f3 una p\u00e9rdida de memoria como la siguiente: objeto sin referencia 0xffff0000d10164d8 (tama\u00f1o 8): comm \\\"pool-udisksd\\\", pid 108217, jiffies 4295408555 volcado hexadecimal (primeros 8 bytes): 75 74 66 38 00 cc cc cc utf8.... backtrace (crc de430d31): [] kmemleak_alloc+0xb8/0xc8 [] __kmalloc_node_track_caller_noprof+0x380/0x474 [] kstrdup+0x70/0xfc [] par\u00e1metro_parse_isofs+0x228/0x2c0 [isofs] [] par\u00e1metro_fs_parse_vfs+0xf4/0x164 [] cadena_fs_parse_vfs+0x8c/0xd4 [] sep_monol\u00edtico_vfs+0xb0/0xfc [] par\u00e1metro_monol\u00edtico_gen\u00e9rico+0x30/0x3c [] analizar_datos_de_montaje_monol\u00edtico+0x40/0x4c [] ruta_de_montaje+0x6c4/0x9ec [] hacer_montaje+0xac/0xc4 [] __arm64_montaje_del_sistema+0x16c/0x2b0 [] invocar_llamada_del_sistema+0x7c/0x104 [] el0_svc_common.constprop.1+0xe0/0x104 [] do_el0_svc+0x2c/0x38 [] el0_svc+0x3c/0x1b8 El opt-\u0026gt;iocharset se libera dentro de la funci\u00f3n isofs_fill_super, pero puede haber situaciones en las que no sea posible ingresar a esta funci\u00f3n. Por ejemplo, en la funci\u00f3n get_tree_bdev_flags, cuando se encuentra la situaci\u00f3n en la que \\\"No se puede montar, cambiar\u00eda el estado de RO\\\", en tal caso, isofs_fill_super no tendr\u00e1 la oportunidad de ser llamado, lo que significa que opt-\u0026gt;iocharset no tendr\u00e1 la oportunidad de ser liberado, lo que finalmente conduce a una p\u00e9rdida de memoria. Pasemos la liberaci\u00f3n de memoria de opt-\u0026gt;iocharset a la funci\u00f3n isofs_free_fc.\"}],\"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\":\"6.10\",\"versionEndExcluding\":\"6.11.11\",\"matchCriteriaId\":\"158A6B22-9260-41D7-965A-A81798A5A969\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.12\",\"versionEndExcluding\":\"6.12.2\",\"matchCriteriaId\":\"D8882B1B-2ABC-4838-AC1D-DBDBB5764776\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0b5bbeee4de616a268db77e2f40f19ab010a367b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/0fbab266ca8000333c966f5b58cb9b9cac658573\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/34f090ddb3630a26e5a6b220bf3bfaf5c7b70393\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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