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Al derribar una PMU 'hisi_hns3', ejecutamos por error las devoluciones de llamadas de conexi\u00f3n en caliente de la CPU despu\u00e9s de que el dispositivo haya sido anulado del registro, lo que lleva a a fuegos artificiales cuando intentamos ejecutar devoluciones de llamadas de funciones vac\u00edas dentro del controlador: | No se puede manejar la desreferencia del puntero NULL del kernel en la direcci\u00f3n virtual 0000000000000000 | CPU: 0 PID: 15 Comunicaciones: cpuhp/0 Contaminado: GWO 5.12.0-rc4+ #1 | Nombre del hardware: , BIOS KpxxxFPGA 1P B600 V143 22/04/2021 | pstate: 80400009 (Nzcv daif +PAN -UAO -TCO BTYPE=--) | ordenador personal: perf_pmu_migrate_context+0x98/0x38c | lr: perf_pmu_migrate_context+0x94/0x38c | | Rastreo de llamadas: | perf_pmu_migrate_context+0x98/0x38c | hisi_hns3_pmu_offline_cpu+0x104/0x12c [hisi_hns3_pmu] Utilice cpuhp_state_remove_instance_nocalls() en lugar de cpuhp_state_remove_instance() para que los notificadores no se ejecuten despu\u00e9s de que el dispositivo PMU haya sido anulado del registro. [will: reescribir\u00e1 el mensaje de confirmaci\u00f3n]"}], "id": "CVE-2023-52860", "lastModified": "2025-02-03T15:45:51.817", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-05-21T16:15:23.003", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3f5827371763f2d9c70719c270055a81d030f3d0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4589403a343bb0c72a6faf5898386ff964d4e01a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/50b560783f7f71790bcf70e9e9855155fb0af8c1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d04ff5437a45f275db5530efb49b68d0ec851f6f"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3f5827371763f2d9c70719c270055a81d030f3d0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4589403a343bb0c72a6faf5898386ff964d4e01a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/50b560783f7f71790bcf70e9e9855155fb0af8c1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d04ff5437a45f275db5530efb49b68d0ec851f6f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: drivers/perf: hisi: use cpuhp_state_remove_instance_nocalls() for hisi_hns3_pmu uninit process", "id": "2282697", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282697"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrivers/perf: hisi: use cpuhp_state_remove_instance_nocalls() for hisi_hns3_pmu uninit process\nWhen tearing down a 'hisi_hns3' PMU, we mistakenly run the CPU hotplug\ncallbacks after the device has been unregistered, leading to fireworks\nwhen we try to execute empty function callbacks within the driver:\n| Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n| CPU: 0 PID: 15 Comm: cpuhp/0 Tainted: G W O 5.12.0-rc4+ #1\n| Hardware name: , BIOS KpxxxFPGA 1P B600 V143 04/22/2021\n| pstate: 80400009 (Nzcv daif +PAN -UAO -TCO BTYPE=--)\n| pc : perf_pmu_migrate_context+0x98/0x38c\n| lr : perf_pmu_migrate_context+0x94/0x38c\n|\n| Call trace:\n| perf_pmu_migrate_context+0x98/0x38c\n| hisi_hns3_pmu_offline_cpu+0x104/0x12c [hisi_hns3_pmu]\nUse cpuhp_state_remove_instance_nocalls() instead of\ncpuhp_state_remove_instance() so that the notifiers don't execute after\nthe PMU device has been unregistered.\n[will: Rewrote commit message]"], "name": "CVE-2023-52860", "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": "2024-05-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52860\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52860\nhttps://lore.kernel.org/linux-cve-announce/2024052117-CVE-2023-52860-fc61@gregkh/T"], "threat_severity": "Low"}

{}