{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-56555", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-27T14:03:05.990Z", "datePublished": "2024-12-27T14:23:01.650Z", "dateUpdated": "2025-10-01T20:07:16.206Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T09:58:14.520Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix OOB in binder_add_freeze_work()\n\nIn binder_add_freeze_work() we iterate over the proc->nodes with the\nproc->inner_lock held. However, this lock is temporarily dropped to\nacquire the node->lock first (lock nesting order). This can race with\nbinder_deferred_release() which removes the nodes from the proc->nodes\nrbtree and adds them into binder_dead_nodes list. This leads to a broken\niteration in binder_add_freeze_work() as rb_next() will use data from\nbinder_dead_nodes, triggering an out-of-bounds access:\n\n ==================================================================\n BUG: KASAN: global-out-of-bounds in rb_next+0xfc/0x124\n Read of size 8 at addr ffffcb84285f7170 by task freeze/660\n\n CPU: 8 UID: 0 PID: 660 Comm: freeze Not tainted 6.11.0-07343-ga727812a8d45 #18\n Hardware name: linux,dummy-virt (DT)\n Call trace:\n rb_next+0xfc/0x124\n binder_add_freeze_work+0x344/0x534\n binder_ioctl+0x1e70/0x25ac\n __arm64_sys_ioctl+0x124/0x190\n\n The buggy address belongs to the variable:\n binder_dead_nodes+0x10/0x40\n [...]\n ==================================================================\n\nThis is possible because proc->nodes (rbtree) and binder_dead_nodes\n(list) share entries in binder_node through a union:\n\n\tstruct binder_node {\n\t[...]\n\t\tunion {\n\t\t\tstruct rb_node rb_node;\n\t\t\tstruct hlist_node dead_node;\n\t\t};\n\nFix the race by checking that the proc is still alive. If not, simply\nbreak out of the iteration."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/android/binder.c"], "versions": [{"version": "d579b04a52a183db47dfcb7a44304d7747d551e1", "lessThan": "6b1be1da1f8279cf091266e71b5153c5b02aaff6", "status": "affected", "versionType": "git"}, {"version": "d579b04a52a183db47dfcb7a44304d7747d551e1", "lessThan": "011e69a1b23011c0db3af4b8293fdd4522cc97b0", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/android/binder.c"], "versions": [{"version": "6.12", "status": "affected"}, {"version": "0", "lessThan": "6.12", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.4", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.12.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6b1be1da1f8279cf091266e71b5153c5b02aaff6"}, {"url": "https://git.kernel.org/stable/c/011e69a1b23011c0db3af4b8293fdd4522cc97b0"}], "title": "binder: fix OOB in binder_add_freeze_work()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2024-56555", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-10-01T20:02:16.414215Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T20:07:16.206Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2024-56555", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-10-01T20:02:16.414215Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T15:41:13.780Z"}}], "cna": {"title": "binder: fix OOB in binder_add_freeze_work()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "d579b04a52a183db47dfcb7a44304d7747d551e1", "lessThan": "6b1be1da1f8279cf091266e71b5153c5b02aaff6", "versionType": "git"}, {"status": "affected", "version": "d579b04a52a183db47dfcb7a44304d7747d551e1", "lessThan": "011e69a1b23011c0db3af4b8293fdd4522cc97b0", "versionType": "git"}], "programFiles": ["drivers/android/binder.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.12"}, {"status": "unaffected", "version": "0", "lessThan": "6.12", "versionType": "semver"}, {"status": "unaffected", "version": "6.12.4", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.13", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/android/binder.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/6b1be1da1f8279cf091266e71b5153c5b02aaff6"}, {"url": "https://git.kernel.org/stable/c/011e69a1b23011c0db3af4b8293fdd4522cc97b0"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix OOB in binder_add_freeze_work()\n\nIn binder_add_freeze_work() we iterate over the proc->nodes with the\nproc->inner_lock held. However, this lock is temporarily dropped to\nacquire the node->lock first (lock nesting order). This can race with\nbinder_deferred_release() which removes the nodes from the proc->nodes\nrbtree and adds them into binder_dead_nodes list. This leads to a broken\niteration in binder_add_freeze_work() as rb_next() will use data from\nbinder_dead_nodes, triggering an out-of-bounds access:\n\n ==================================================================\n BUG: KASAN: global-out-of-bounds in rb_next+0xfc/0x124\n Read of size 8 at addr ffffcb84285f7170 by task freeze/660\n\n CPU: 8 UID: 0 PID: 660 Comm: freeze Not tainted 6.11.0-07343-ga727812a8d45 #18\n Hardware name: linux,dummy-virt (DT)\n Call trace:\n rb_next+0xfc/0x124\n binder_add_freeze_work+0x344/0x534\n binder_ioctl+0x1e70/0x25ac\n __arm64_sys_ioctl+0x124/0x190\n\n The buggy address belongs to the variable:\n binder_dead_nodes+0x10/0x40\n [...]\n ==================================================================\n\nThis is possible because proc->nodes (rbtree) and binder_dead_nodes\n(list) share entries in binder_node through a union:\n\n\tstruct binder_node {\n\t[...]\n\t\tunion {\n\t\t\tstruct rb_node rb_node;\n\t\t\tstruct hlist_node dead_node;\n\t\t};\n\nFix the race by checking that the proc is still alive. If not, simply\nbreak out of the iteration."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.4", "versionStartIncluding": "6.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.13", "versionStartIncluding": "6.12"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T09:58:14.520Z"}}}, "cveMetadata": {"cveId": "CVE-2024-56555", "state": "PUBLISHED", "dateUpdated": "2025-10-01T20:07:16.206Z", "dateReserved": "2024-12-27T14:03:05.990Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-12-27T14:23:01.650Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "938626A1-5477-4679-A5E2-2AADE66DEDCA", "versionEndExcluding": "6.12.4", "versionStartIncluding": "6.12", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix OOB in binder_add_freeze_work()\n\nIn binder_add_freeze_work() we iterate over the proc->nodes with the\nproc->inner_lock held. However, this lock is temporarily dropped to\nacquire the node->lock first (lock nesting order). This can race with\nbinder_deferred_release() which removes the nodes from the proc->nodes\nrbtree and adds them into binder_dead_nodes list. This leads to a broken\niteration in binder_add_freeze_work() as rb_next() will use data from\nbinder_dead_nodes, triggering an out-of-bounds access:\n\n ==================================================================\n BUG: KASAN: global-out-of-bounds in rb_next+0xfc/0x124\n Read of size 8 at addr ffffcb84285f7170 by task freeze/660\n\n CPU: 8 UID: 0 PID: 660 Comm: freeze Not tainted 6.11.0-07343-ga727812a8d45 #18\n Hardware name: linux,dummy-virt (DT)\n Call trace:\n rb_next+0xfc/0x124\n binder_add_freeze_work+0x344/0x534\n binder_ioctl+0x1e70/0x25ac\n __arm64_sys_ioctl+0x124/0x190\n\n The buggy address belongs to the variable:\n binder_dead_nodes+0x10/0x40\n [...]\n ==================================================================\n\nThis is possible because proc->nodes (rbtree) and binder_dead_nodes\n(list) share entries in binder_node through a union:\n\n\tstruct binder_node {\n\t[...]\n\t\tunion {\n\t\t\tstruct rb_node rb_node;\n\t\t\tstruct hlist_node dead_node;\n\t\t};\n\nFix the race by checking that the proc is still alive. If not, simply\nbreak out of the iteration."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: binder: correcci\u00f3n de OOB en binder_add_freeze_work() En binder_add_freeze_work() iteramos sobre proc->nodes con el proc->inner_lock retenido. Sin embargo, este bloqueo se elimina temporalmente para adquirir primero el node->lock (orden de anidaci\u00f3n de bloqueos). Esto puede competir con binder_deferred_release() que elimina los nodos del proc->nodes rbtree y los agrega a la lista binder_dead_nodes. Esto genera una iteraci\u00f3n rota en binder_add_freeze_work() ya que rb_next() usar\u00e1 datos de binder_dead_nodes, lo que activa un acceso fuera de los l\u00edmites: ====================================================================== ERROR: KASAN: global fuera de los l\u00edmites en rb_next+0xfc/0x124 Lectura de tama\u00f1o 8 en la direcci\u00f3n ffffcb84285f7170 por la tarea freeze/660 CPU: 8 UID: 0 PID: 660 Comm: freeze No contaminado 6.11.0-07343-ga727812a8d45 #18 Nombre del hardware: linux,dummy-virt (DT) Rastreo de llamadas: rb_next+0xfc/0x124 binder_add_freeze_work+0x344/0x534 binder_ioctl+0x1e70/0x25ac __arm64_sys_ioctl+0x124/0x190 La direcci\u00f3n con errores pertenece a la variable: binder_dead_nodes+0x10/0x40 [...] =================================================================== Esto es posible porque proc->nodes (rbtree) y binder_dead_nodes (lista) comparten entradas en binder_node a trav\u00e9s de una uni\u00f3n: struct binder_node { [...] union { struct rb_node rb_node; struct hlist_node dead_node; }; Corrija la ejecuci\u00f3n comprobando que el procedimiento sigue activo. Si no es as\u00ed, simplemente salga de la iteraci\u00f3n."}], "id": "CVE-2024-56555", "lastModified": "2025-10-01T20:17:27.287", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2024-12-27T15:15:14.297", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/011e69a1b23011c0db3af4b8293fdd4522cc97b0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6b1be1da1f8279cf091266e71b5153c5b02aaff6"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-125"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: binder: fix OOB in binder_add_freeze_work()", "id": "2334506", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334506"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbinder: fix OOB in binder_add_freeze_work()\nIn binder_add_freeze_work() we iterate over the proc->nodes with the\nproc->inner_lock held. However, this lock is temporarily dropped to\nacquire the node->lock first (lock nesting order). This can race with\nbinder_deferred_release() which removes the nodes from the proc->nodes\nrbtree and adds them into binder_dead_nodes list. This leads to a broken\niteration in binder_add_freeze_work() as rb_next() will use data from\nbinder_dead_nodes, triggering an out-of-bounds access:\n==================================================================\nBUG: KASAN: global-out-of-bounds in rb_next+0xfc/0x124\nRead of size 8 at addr ffffcb84285f7170 by task freeze/660\nCPU: 8 UID: 0 PID: 660 Comm: freeze Not tainted 6.11.0-07343-ga727812a8d45 #18\nHardware name: linux,dummy-virt (DT)\nCall trace:\nrb_next+0xfc/0x124\nbinder_add_freeze_work+0x344/0x534\nbinder_ioctl+0x1e70/0x25ac\n__arm64_sys_ioctl+0x124/0x190\nThe buggy address belongs to the variable:\nbinder_dead_nodes+0x10/0x40\n[...]\n==================================================================\nThis is possible because proc->nodes (rbtree) and binder_dead_nodes\n(list) share entries in binder_node through a union:\nstruct binder_node {\n[...]\nunion {\nstruct rb_node rb_node;\nstruct hlist_node dead_node;\n};\nFix the race by checking that the proc is still alive. If not, simply\nbreak out of the iteration."], "name": "CVE-2024-56555", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-12-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-56555\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-56555\nhttps://lore.kernel.org/linux-cve-announce/2024122711-CVE-2024-56555-6abc@gregkh/T"], "threat_severity": "Important"}

{}