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CVE-2024-46750 (GCVE-0-2024-46750)

Vulnerability from cvelistv5 – Published: 2024-09-18 07:12 – Updated: 2026-08-05 11:38
VLAI
Title
PCI: Add missing bridge lock to pci_bus_lock()
Summary
In the Linux kernel, the following vulnerability has been resolved: PCI: Add missing bridge lock to pci_bus_lock() One of the true positives that the cfg_access_lock lockdep effort identified is this sequence: WARNING: CPU: 14 PID: 1 at drivers/pci/pci.c:4886 pci_bridge_secondary_bus_reset+0x5d/0x70 RIP: 0010:pci_bridge_secondary_bus_reset+0x5d/0x70 Call Trace: <TASK> ? __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 Where pci_reset_bus() users are triggering unlocked secondary bus resets. Ironically pci_bus_reset(), several calls down from pci_reset_bus(), uses pci_bus_lock() before issuing the reset which locks everything *but* the bridge itself. For the same motivation as adding: bridge = pci_upstream_bridge(dev); if (bridge) pci_dev_lock(bridge); to pci_reset_function() for the "bus" and "cxl_bus" reset cases, add pci_dev_lock() for @bus->self to pci_bus_lock(). [bhelgaas: squash in recursive locking deadlock fix from Keith Busch: https://lore.kernel.org/r/20240711193650.701834-1-kbusch@meta.com]
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-29 14:47 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 090a3c5322e900f468b3205b76d0837003ad57b2 , < 0790b89c7e911003b8c50ae50e3ac7645de1fae9 (git)
Affected: 090a3c5322e900f468b3205b76d0837003ad57b2 , < df77a678c33871a6e4ac5b54a71662f1d702335b (git)
Affected: 090a3c5322e900f468b3205b76d0837003ad57b2 , < e2355d513b89a2cb511b4ded0deb426cdb01acd0 (git)
Affected: 090a3c5322e900f468b3205b76d0837003ad57b2 , < 04e85a3285b0e5c5af6fd2c0fd6e95ffecc01945 (git)
Affected: 090a3c5322e900f468b3205b76d0837003ad57b2 , < 7253b4fed46471cc247c6cacefac890a8472c083 (git)
Affected: 090a3c5322e900f468b3205b76d0837003ad57b2 , < 78c6e39fef5c428960aff742149bba302dd46f5a (git)
Affected: 090a3c5322e900f468b3205b76d0837003ad57b2 , < 81c68e218ab883dfa368460a59b674084c0240da (git)
Affected: 090a3c5322e900f468b3205b76d0837003ad57b2 , < a4e772898f8bf2e7e1cf661a12c60a5612c4afab (git)
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Linux Linux Affected: 3.12
Unaffected: 0 , < 3.12 (semver)
Unaffected: 4.19.322 , ≤ 4.19.* (semver)
Unaffected: 5.4.284 , ≤ 5.4.* (semver)
Unaffected: 5.10.226 , ≤ 5.10.* (semver)
Unaffected: 5.15.167 , ≤ 5.15.* (semver)
Unaffected: 6.1.110 , ≤ 6.1.* (semver)
Unaffected: 6.6.51 , ≤ 6.6.* (semver)
Unaffected: 6.10.10 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
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Siemens RUGGEDCOM RST2428P Affected: 0 , < V3.2 (custom)
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Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family Affected: 0 , < V3.2 (custom)
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Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family Affected: 0 , < V3.2 (custom)
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Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
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Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
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Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
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      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"4.19.322\", \"matchCriteriaId\": \"29162FB8-5FA4-4DC4-86CE-5EB0CAEEF2F3\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.20\", \"versionEndExcluding\": \"5.4.284\", \"matchCriteriaId\": \"6265A402-9C3C-438F-BFC5-4194B2568B85\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.5\", \"versionEndExcluding\": \"5.10.226\", \"matchCriteriaId\": \"864FC17C-501A-4823-A643-6F35D65D8A97\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.11\", \"versionEndExcluding\": \"5.15.167\", \"matchCriteriaId\": \"043405A4-25FE-45D4-A7BB-2A0C3B7D17C1\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.16\", \"versionEndExcluding\": \"6.1.110\", \"matchCriteriaId\": \"6B1A95FC-7E7E-428B-BB59-F76640C652AE\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.2\", \"versionEndExcluding\": \"6.6.51\", \"matchCriteriaId\": \"E4529134-BAC4-4776-840B-304009E181A0\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.7\", \"versionEndExcluding\": \"6.10.10\", \"matchCriteriaId\": \"ACDEE48C-137A-4731-90D0-A675865E1BED\"}]}]}]",
      "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   \u003cTASK\u003e\\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-\u003eself 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-\u0026gt;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": "2024-09-30T13:27:45.787",
      "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}]}",
      "published": "2024-09-18T08:15:03.947",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/04e85a3285b0e5c5af6fd2c0fd6e95ffecc01945\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/0790b89c7e911003b8c50ae50e3ac7645de1fae9\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/7253b4fed46471cc247c6cacefac890a8472c083\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/78c6e39fef5c428960aff742149bba302dd46f5a\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/81c68e218ab883dfa368460a59b674084c0240da\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/a4e772898f8bf2e7e1cf661a12c60a5612c4afab\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/df77a678c33871a6e4ac5b54a71662f1d702335b\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/e2355d513b89a2cb511b4ded0deb426cdb01acd0\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Analyzed",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-667\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-46750\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-09-18T08:15:03.947\",\"lastModified\":\"2026-08-04T11:20:21.573\",\"vulnStatus\":\"Modified\",\"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   \u003cTASK\u003e\\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-\u003eself 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-\u0026gt;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]\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/pci/pci.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"090a3c5322e900f468b3205b76d0837003ad57b2\",\"lessThan\":\"0790b89c7e911003b8c50ae50e3ac7645de1fae9\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"090a3c5322e900f468b3205b76d0837003ad57b2\",\"lessThan\":\"df77a678c33871a6e4ac5b54a71662f1d702335b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"090a3c5322e900f468b3205b76d0837003ad57b2\",\"lessThan\":\"e2355d513b89a2cb511b4ded0deb426cdb01acd0\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"090a3c5322e900f468b3205b76d0837003ad57b2\",\"lessThan\":\"04e85a3285b0e5c5af6fd2c0fd6e95ffecc01945\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"090a3c5322e900f468b3205b76d0837003ad57b2\",\"lessThan\":\"7253b4fed46471cc247c6cacefac890a8472c083\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"090a3c5322e900f468b3205b76d0837003ad57b2\",\"lessThan\":\"78c6e39fef5c428960aff742149bba302dd46f5a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"090a3c5322e900f468b3205b76d0837003ad57b2\",\"lessThan\":\"81c68e218ab883dfa368460a59b674084c0240da\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"090a3c5322e900f468b3205b76d0837003ad57b2\",\"lessThan\":\"a4e772898f8bf2e7e1cf661a12c60a5612c4afab\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/pci/pci.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.12\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.12\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.322\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.284\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.226\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.167\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.110\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.51\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.10.10\",\"lessThanOrEqual\":\"6.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.11\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\",\"affectedData\":[{\"vendor\":\"Siemens\",\"product\":\"RUGGEDCOM RST2428P\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.2\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.2\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XCM-/XRM-/XCH-/XRH-300 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.2\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518-4 PN/DP 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MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.0\",\"lessThan\":\"V3.1.5\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"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}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-09-29T14:47:52.159037Z\",\"id\":\"CVE-2024-46750\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-09-13T09:06:05+00:00",
      "cve": "CVE-2024-46750",
      "id": "CVE-2024-46750",
      "initial_release_date": "2024-09-18T00:00:00+00:00",
      "product_status:fixed": "305",
      "product_status:known_affected": "112",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: PCI: Add missing bridge lock to pci_bus_lock()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-46750.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T01:48:22Z",
      "cve": "CVE-2024-46750",
      "id": "CVE-2024-46750",
      "initial_release_date": "2024-09-19T03:10:37Z",
      "product_status:known_affected": "619",
      "product_status:known_not_affected": "12",
      "product_status:recommended": "767",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-46750",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-46750.json",
      "version": "80"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T22:17:46.292Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-46750\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-29T14:47:52.159037Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-29T14:47:56.456Z\"}}], \"cna\": {\"title\": \"PCI: Add missing bridge lock to pci_bus_lock()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"090a3c5322e900f468b3205b76d0837003ad57b2\", \"lessThan\": \"0790b89c7e911003b8c50ae50e3ac7645de1fae9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"090a3c5322e900f468b3205b76d0837003ad57b2\", \"lessThan\": \"df77a678c33871a6e4ac5b54a71662f1d702335b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"090a3c5322e900f468b3205b76d0837003ad57b2\", \"lessThan\": \"e2355d513b89a2cb511b4ded0deb426cdb01acd0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"090a3c5322e900f468b3205b76d0837003ad57b2\", \"lessThan\": \"04e85a3285b0e5c5af6fd2c0fd6e95ffecc01945\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"090a3c5322e900f468b3205b76d0837003ad57b2\", \"lessThan\": \"7253b4fed46471cc247c6cacefac890a8472c083\", \"versionType\": 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\"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.284\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.226\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.167\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.110\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.51\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.10.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/pci/pci.c\"], \"defaultStatus\": \"affected\"}], \"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\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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   \u003cTASK\u003e\\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-\u003eself 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]\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.322\", \"versionStartIncluding\": \"3.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.284\", \"versionStartIncluding\": \"3.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.226\", \"versionStartIncluding\": \"3.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.167\", \"versionStartIncluding\": \"3.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.110\", \"versionStartIncluding\": \"3.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.51\", \"versionStartIncluding\": \"3.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10.10\", \"versionStartIncluding\": \"3.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11\", \"versionStartIncluding\": \"3.12\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:35:41.081Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-46750\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:35:41.081Z\", \"dateReserved\": \"2024-09-11T15:12:18.267Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-09-18T07:12:10.484Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.