{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-46750", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-09-11T15:12:18.267Z", "datePublished": "2024-09-18T07:12:10.484Z", "dateUpdated": "2024-09-18T07:12:10.484Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-09-18T07:12:10.484Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: Add missing bridge lock to pci_bus_lock()\n\nOne of the true positives that the cfg_access_lock lockdep effort\nidentified is this sequence:\n\n WARNING: CPU: 14 PID: 1 at drivers/pci/pci.c:4886 pci_bridge_secondary_bus_reset+0x5d/0x70\n RIP: 0010:pci_bridge_secondary_bus_reset+0x5d/0x70\n Call Trace:\n <TASK>\n ? __warn+0x8c/0x190\n ? pci_bridge_secondary_bus_reset+0x5d/0x70\n ? report_bug+0x1f8/0x200\n ? handle_bug+0x3c/0x70\n ? exc_invalid_op+0x18/0x70\n ? asm_exc_invalid_op+0x1a/0x20\n ? pci_bridge_secondary_bus_reset+0x5d/0x70\n pci_reset_bus+0x1d8/0x270\n vmd_probe+0x778/0xa10\n pci_device_probe+0x95/0x120\n\nWhere pci_reset_bus() users are triggering unlocked secondary bus resets.\nIronically pci_bus_reset(), several calls down from pci_reset_bus(), uses\npci_bus_lock() before issuing the reset which locks everything *but* the\nbridge itself.\n\nFor the same motivation as adding:\n\n bridge = pci_upstream_bridge(dev);\n if (bridge)\n pci_dev_lock(bridge);\n\nto pci_reset_function() for the \"bus\" and \"cxl_bus\" reset cases, add\npci_dev_lock() for @bus->self to pci_bus_lock().\n\n[bhelgaas: squash in recursive locking deadlock fix from Keith Busch:\nhttps://lore.kernel.org/r/20240711193650.701834-1-kbusch@meta.com]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/pci/pci.c"], "versions": [{"version": "1da177e4c3f4", "lessThan": "0790b89c7e91", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "df77a678c338", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "e2355d513b89", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "04e85a3285b0", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "7253b4fed464", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "78c6e39fef5c", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "81c68e218ab8", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "a4e772898f8b", "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/pci/pci.c"], "versions": [{"version": "4.19.322", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.4.284", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.10.226", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.15.167", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.1.110", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.6.51", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.10.10", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.11", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/0790b89c7e911003b8c50ae50e3ac7645de1fae9"}, {"url": "https://git.kernel.org/stable/c/df77a678c33871a6e4ac5b54a71662f1d702335b"}, {"url": "https://git.kernel.org/stable/c/e2355d513b89a2cb511b4ded0deb426cdb01acd0"}, {"url": "https://git.kernel.org/stable/c/04e85a3285b0e5c5af6fd2c0fd6e95ffecc01945"}, {"url": "https://git.kernel.org/stable/c/7253b4fed46471cc247c6cacefac890a8472c083"}, {"url": "https://git.kernel.org/stable/c/78c6e39fef5c428960aff742149bba302dd46f5a"}, {"url": "https://git.kernel.org/stable/c/81c68e218ab883dfa368460a59b674084c0240da"}, {"url": "https://git.kernel.org/stable/c/a4e772898f8bf2e7e1cf661a12c60a5612c4afab"}], "title": "PCI: Add missing bridge lock to pci_bus_lock()", "x_generator": {"engine": "bippy-c9c4e1df01b2"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: Add missing bridge lock to pci_bus_lock()\n\nOne of the true positives that the cfg_access_lock lockdep effort\nidentified is this sequence:\n\n WARNING: CPU: 14 PID: 1 at drivers/pci/pci.c:4886 pci_bridge_secondary_bus_reset+0x5d/0x70\n RIP: 0010:pci_bridge_secondary_bus_reset+0x5d/0x70\n Call Trace:\n <TASK>\n ? __warn+0x8c/0x190\n ? pci_bridge_secondary_bus_reset+0x5d/0x70\n ? report_bug+0x1f8/0x200\n ? handle_bug+0x3c/0x70\n ? exc_invalid_op+0x18/0x70\n ? asm_exc_invalid_op+0x1a/0x20\n ? pci_bridge_secondary_bus_reset+0x5d/0x70\n pci_reset_bus+0x1d8/0x270\n vmd_probe+0x778/0xa10\n pci_device_probe+0x95/0x120\n\nWhere pci_reset_bus() users are triggering unlocked secondary bus resets.\nIronically pci_bus_reset(), several calls down from pci_reset_bus(), uses\npci_bus_lock() before issuing the reset which locks everything *but* the\nbridge itself.\n\nFor the same motivation as adding:\n\n bridge = pci_upstream_bridge(dev);\n if (bridge)\n pci_dev_lock(bridge);\n\nto pci_reset_function() for the \"bus\" and \"cxl_bus\" reset cases, add\npci_dev_lock() for @bus->self to pci_bus_lock().\n\n[bhelgaas: squash in recursive locking deadlock fix from Keith Busch:\nhttps://lore.kernel.org/r/20240711193650.701834-1-kbusch@meta.com]"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: PCI: Agregar bloqueo de puente faltante a pci_bus_lock() Uno de los verdaderos positivos que identific\u00f3 el esfuerzo de cfg_access_lock lockdep es esta secuencia: ADVERTENCIA: CPU: 14 PID: 1 en drivers/pci/pci.c:4886 pci_bridge_secondary_bus_reset+0x5d/0x70 RIP: 0010:pci_bridge_secondary_bus_reset+0x5d/0x70 Rastreo de llamada: ? __warn+0x8c/0x190 ? pci_bridge_secondary_bus_reset+0x5d/0x70 ? report_bug+0x1f8/0x200 ? handle_bug+0x3c/0x70 ? exc_invalid_op+0x18/0x70 ? asm_exc_invalid_op+0x1a/0x20 ? pci_bridge_secondary_bus_reset+0x5d/0x70 pci_reset_bus+0x1d8/0x270 vmd_probe+0x778/0xa10 pci_device_probe+0x95/0x120 Donde los usuarios de pci_reset_bus() est\u00e1n activando reinicios de bus secundario desbloqueados. Ir\u00f3nicamente, pci_bus_reset(), varias llamadas despu\u00e9s de pci_reset_bus(), usa pci_bus_lock() antes de emitir el reinicio que bloquea todo *excepto* el puente mismo. Por la misma motivaci\u00f3n que agregar: bridge = pci_upstream_bridge(dev); if (bridge) pci_dev_lock(bridge); Para pci_reset_function() en los casos de reinicio de \"bus\" y \"cxl_bus\", agregue pci_dev_lock() para @bus-&gt;self a pci_bus_lock(). [bhelgaas: soluci\u00f3n de bloqueo recursivo de squash de Keith Busch: https://lore.kernel.org/r/20240711193650.701834-1-kbusch@meta.com]"}], "id": "CVE-2024-46750", "lastModified": "2024-09-20T12:30:51.220", "metrics": {}, "published": "2024-09-18T08:15:03.947", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/04e85a3285b0e5c5af6fd2c0fd6e95ffecc01945"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0790b89c7e911003b8c50ae50e3ac7645de1fae9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7253b4fed46471cc247c6cacefac890a8472c083"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/78c6e39fef5c428960aff742149bba302dd46f5a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/81c68e218ab883dfa368460a59b674084c0240da"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a4e772898f8bf2e7e1cf661a12c60a5612c4afab"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/df77a678c33871a6e4ac5b54a71662f1d702335b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e2355d513b89a2cb511b4ded0deb426cdb01acd0"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: PCI: Add missing bridge lock to pci_bus_lock()", "id": "2313098", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2313098"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nPCI: Add missing bridge lock to pci_bus_lock()\nOne of the true positives that the cfg_access_lock lockdep effort\nidentified is this sequence:\nWARNING: CPU: 14 PID: 1 at drivers/pci/pci.c:4886 pci_bridge_secondary_bus_reset+0x5d/0x70\nRIP: 0010:pci_bridge_secondary_bus_reset+0x5d/0x70\nCall Trace:\n<TASK>\n? __warn+0x8c/0x190\n? pci_bridge_secondary_bus_reset+0x5d/0x70\n? report_bug+0x1f8/0x200\n? handle_bug+0x3c/0x70\n? exc_invalid_op+0x18/0x70\n? asm_exc_invalid_op+0x1a/0x20\n? pci_bridge_secondary_bus_reset+0x5d/0x70\npci_reset_bus+0x1d8/0x270\nvmd_probe+0x778/0xa10\npci_device_probe+0x95/0x120\nWhere pci_reset_bus() users are triggering unlocked secondary bus resets.\nIronically pci_bus_reset(), several calls down from pci_reset_bus(), uses\npci_bus_lock() before issuing the reset which locks everything *but* the\nbridge itself.\nFor the same motivation as adding:\nbridge = pci_upstream_bridge(dev);\nif (bridge)\npci_dev_lock(bridge);\nto pci_reset_function() for the \"bus\" and \"cxl_bus\" reset cases, add\npci_dev_lock() for @bus->self to pci_bus_lock().\n[bhelgaas: squash in recursive locking deadlock fix from Keith Busch:\nhttps://lore.kernel.org/r/20240711193650.701834-1-kbusch@meta.com]"], "name": "CVE-2024-46750", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-09-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-46750\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-46750\nhttps://lore.kernel.org/linux-cve-announce/2024091838-CVE-2024-46750-3be1@gregkh/T"], "threat_severity": "Moderate"}