cve-2024-56553
Vulnerability from cvelistv5
Published
2024-12-27 14:22
Modified
2025-01-20 06:22
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: binder: fix memleak of proc->delivered_freeze If a freeze notification is cleared with BC_CLEAR_FREEZE_NOTIFICATION before calling binder_freeze_notification_done(), then it is detached from its reference (e.g. ref->freeze) but the work remains queued in proc->delivered_freeze. This leads to a memory leak when the process exits as any pending entries in proc->delivered_freeze are not freed: unreferenced object 0xffff38e8cfa36180 (size 64): comm "binder-util", pid 655, jiffies 4294936641 hex dump (first 32 bytes): b8 e9 9e c8 e8 38 ff ff b8 e9 9e c8 e8 38 ff ff .....8.......8.. 0b 00 00 00 00 00 00 00 3c 1f 4b 00 00 00 00 00 ........<.K..... backtrace (crc 95983b32): [<000000000d0582cf>] kmemleak_alloc+0x34/0x40 [<000000009c99a513>] __kmalloc_cache_noprof+0x208/0x280 [<00000000313b1704>] binder_thread_write+0xdec/0x439c [<000000000cbd33bb>] binder_ioctl+0x1b68/0x22cc [<000000002bbedeeb>] __arm64_sys_ioctl+0x124/0x190 [<00000000b439adee>] invoke_syscall+0x6c/0x254 [<00000000173558fc>] el0_svc_common.constprop.0+0xac/0x230 [<0000000084f72311>] do_el0_svc+0x40/0x58 [<000000008b872457>] el0_svc+0x38/0x78 [<00000000ee778653>] el0t_64_sync_handler+0x120/0x12c [<00000000a8ec61bf>] el0t_64_sync+0x190/0x194 This patch fixes the leak by ensuring that any pending entries in proc->delivered_freeze are freed during binder_deferred_release().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1db76ec2b4b206ff943e292a0b55e68ff3443598Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b8b77712142fb146fe18d2253bc8a798d522e427Patch
Impacted products
Vendor Product Version
Linux Linux Version: d579b04a52a183db47dfcb7a44304d7747d551e1
Version: d579b04a52a183db47dfcb7a44304d7747d551e1
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   Linux Linux Version: 6.12
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/android/binder.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b8b77712142fb146fe18d2253bc8a798d522e427",
              "status": "affected",
              "version": "d579b04a52a183db47dfcb7a44304d7747d551e1",
              "versionType": "git"
            },
            {
              "lessThan": "1db76ec2b4b206ff943e292a0b55e68ff3443598",
              "status": "affected",
              "version": "d579b04a52a183db47dfcb7a44304d7747d551e1",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/android/binder.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.12"
            },
            {
              "lessThan": "6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.4",
              "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\nbinder: fix memleak of proc-\u003edelivered_freeze\n\nIf a freeze notification is cleared with BC_CLEAR_FREEZE_NOTIFICATION\nbefore calling binder_freeze_notification_done(), then it is detached\nfrom its reference (e.g. ref-\u003efreeze) but the work remains queued in\nproc-\u003edelivered_freeze. This leads to a memory leak when the process\nexits as any pending entries in proc-\u003edelivered_freeze are not freed:\n\n  unreferenced object 0xffff38e8cfa36180 (size 64):\n    comm \"binder-util\", pid 655, jiffies 4294936641\n    hex dump (first 32 bytes):\n      b8 e9 9e c8 e8 38 ff ff b8 e9 9e c8 e8 38 ff ff  .....8.......8..\n      0b 00 00 00 00 00 00 00 3c 1f 4b 00 00 00 00 00  ........\u003c.K.....\n    backtrace (crc 95983b32):\n      [\u003c000000000d0582cf\u003e] kmemleak_alloc+0x34/0x40\n      [\u003c000000009c99a513\u003e] __kmalloc_cache_noprof+0x208/0x280\n      [\u003c00000000313b1704\u003e] binder_thread_write+0xdec/0x439c\n      [\u003c000000000cbd33bb\u003e] binder_ioctl+0x1b68/0x22cc\n      [\u003c000000002bbedeeb\u003e] __arm64_sys_ioctl+0x124/0x190\n      [\u003c00000000b439adee\u003e] invoke_syscall+0x6c/0x254\n      [\u003c00000000173558fc\u003e] el0_svc_common.constprop.0+0xac/0x230\n      [\u003c0000000084f72311\u003e] do_el0_svc+0x40/0x58\n      [\u003c000000008b872457\u003e] el0_svc+0x38/0x78\n      [\u003c00000000ee778653\u003e] el0t_64_sync_handler+0x120/0x12c\n      [\u003c00000000a8ec61bf\u003e] el0t_64_sync+0x190/0x194\n\nThis patch fixes the leak by ensuring that any pending entries in\nproc-\u003edelivered_freeze are freed during binder_deferred_release()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-01-20T06:22:47.016Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b8b77712142fb146fe18d2253bc8a798d522e427"
        },
        {
          "url": "https://git.kernel.org/stable/c/1db76ec2b4b206ff943e292a0b55e68ff3443598"
        }
      ],
      "title": "binder: fix memleak of proc-\u003edelivered_freeze",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-56553",
    "datePublished": "2024-12-27T14:22:54.859Z",
    "dateReserved": "2024-12-27T14:03:05.990Z",
    "dateUpdated": "2025-01-20T06:22:47.016Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-56553\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-12-27T15:15:14.073\",\"lastModified\":\"2025-01-15T18:35:51.337\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbinder: fix memleak of proc-\u003edelivered_freeze\\n\\nIf a freeze notification is cleared with BC_CLEAR_FREEZE_NOTIFICATION\\nbefore calling binder_freeze_notification_done(), then it is detached\\nfrom its reference (e.g. ref-\u003efreeze) but the work remains queued in\\nproc-\u003edelivered_freeze. This leads to a memory leak when the process\\nexits as any pending entries in proc-\u003edelivered_freeze are not freed:\\n\\n  unreferenced object 0xffff38e8cfa36180 (size 64):\\n    comm \\\"binder-util\\\", pid 655, jiffies 4294936641\\n    hex dump (first 32 bytes):\\n      b8 e9 9e c8 e8 38 ff ff b8 e9 9e c8 e8 38 ff ff  .....8.......8..\\n      0b 00 00 00 00 00 00 00 3c 1f 4b 00 00 00 00 00  ........\u003c.K.....\\n    backtrace (crc 95983b32):\\n      [\u003c000000000d0582cf\u003e] kmemleak_alloc+0x34/0x40\\n      [\u003c000000009c99a513\u003e] __kmalloc_cache_noprof+0x208/0x280\\n      [\u003c00000000313b1704\u003e] binder_thread_write+0xdec/0x439c\\n      [\u003c000000000cbd33bb\u003e] binder_ioctl+0x1b68/0x22cc\\n      [\u003c000000002bbedeeb\u003e] __arm64_sys_ioctl+0x124/0x190\\n      [\u003c00000000b439adee\u003e] invoke_syscall+0x6c/0x254\\n      [\u003c00000000173558fc\u003e] el0_svc_common.constprop.0+0xac/0x230\\n      [\u003c0000000084f72311\u003e] do_el0_svc+0x40/0x58\\n      [\u003c000000008b872457\u003e] el0_svc+0x38/0x78\\n      [\u003c00000000ee778653\u003e] el0t_64_sync_handler+0x120/0x12c\\n      [\u003c00000000a8ec61bf\u003e] el0t_64_sync+0x190/0x194\\n\\nThis patch fixes the leak by ensuring that any pending entries in\\nproc-\u003edelivered_freeze are freed during binder_deferred_release().\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: binder: corrige p\u00e9rdida de memoria de proc-\u0026gt;delivered_freeze Si se borra una notificaci\u00f3n de congelamiento con BC_CLEAR_FREEZE_NOTIFICATION antes de llamar a binder_freeze_notification_done(), entonces se separa de su referencia (por ejemplo, ref-\u0026gt;freeze) pero el trabajo permanece en cola en proc-\u0026gt;delivered_freeze. Esto genera una p\u00e9rdida de memoria cuando el proceso finaliza, ya que no se liberan las entradas pendientes en proc-\u0026gt;delivered_freeze: objeto sin referencia 0xffff38e8cfa36180 (tama\u00f1o 64): comm \\\"binder-util\\\", pid 655, jiffies 4294936641 volcado hexadecimal (primeros 32 bytes): b8 e9 9e c8 e8 38 ff ff b8 e9 9e c8 e8 38 ff ff .....8.......8.. 0b 00 00 00 00 00 00 00 3c 1f 4b 00 00 00 00 00 ........\u0026lt;.K..... backtrace (crc 95983b32): [\u0026lt;000000000d0582cf\u0026gt;] kmemleak_alloc+0x34/0x40 [\u0026lt;000000009c99a513\u0026gt;] __kmalloc_cache_noprof+0x208/0x280 [\u0026lt;00000000313b1704\u0026gt;] binder_thread_write+0xdec/0x439c [\u0026lt;000000000cbd33bb\u0026gt;] binder_ioctl+0x1b68/0x22cc [\u0026lt;000000002bbedeeb\u0026gt;] __arm64_sys_ioctl+0x124/0x190 [\u0026lt;00000000b439adee\u0026gt;] invocar_syscall+0x6c/0x254 [\u0026lt;00000000173558fc\u0026gt;] Este parche corrige la fuga al garantizar que todas las entradas pendientes en proc-\u0026gt;delivered_freeze se liberen durante binder_deferred_release().\"}],\"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\":\"6.12\",\"versionEndExcluding\":\"6.12.4\",\"matchCriteriaId\":\"938626A1-5477-4679-A5E2-2AADE66DEDCA\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1db76ec2b4b206ff943e292a0b55e68ff3443598\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b8b77712142fb146fe18d2253bc8a798d522e427\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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