{"api_version":"1","generated_at":"2026-07-23T14:57:53+00:00","cve":"CVE-2024-46750","urls":{"html":"https://cve.report/CVE-2024-46750","api":"https://cve.report/api/cve/CVE-2024-46750.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2024-46750","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-46750"},"summary":{"title":"PCI: Add missing bridge lock to pci_bus_lock()","description":"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]","state":"PUBLISHED","assigner":"Linux","published_at":"2024-09-18 08:15:03","updated_at":"2026-05-12 12:17:11"},"problem_types":["CWE-667"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"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"}}],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html","name":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html","refsource":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e2355d513b89a2cb511b4ded0deb426cdb01acd0","name":"https://git.kernel.org/stable/c/e2355d513b89a2cb511b4ded0deb426cdb01acd0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/04e85a3285b0e5c5af6fd2c0fd6e95ffecc01945","name":"https://git.kernel.org/stable/c/04e85a3285b0e5c5af6fd2c0fd6e95ffecc01945","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/df77a678c33871a6e4ac5b54a71662f1d702335b","name":"https://git.kernel.org/stable/c/df77a678c33871a6e4ac5b54a71662f1d702335b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html","name":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html","refsource":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/78c6e39fef5c428960aff742149bba302dd46f5a","name":"https://git.kernel.org/stable/c/78c6e39fef5c428960aff742149bba302dd46f5a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0790b89c7e911003b8c50ae50e3ac7645de1fae9","name":"https://git.kernel.org/stable/c/0790b89c7e911003b8c50ae50e3ac7645de1fae9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7253b4fed46471cc247c6cacefac890a8472c083","name":"https://git.kernel.org/stable/c/7253b4fed46471cc247c6cacefac890a8472c083","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a4e772898f8bf2e7e1cf661a12c60a5612c4afab","name":"https://git.kernel.org/stable/c/a4e772898f8bf2e7e1cf661a12c60a5612c4afab","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/81c68e218ab883dfa368460a59b674084c0240da","name":"https://git.kernel.org/stable/c/81c68e218ab883dfa368460a59b674084c0240da","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html","name":"https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-355557.html","name":"https://cert-portal.siemens.com/productcert/html/ssa-355557.html","refsource":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html","name":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-46750","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-46750","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 090a3c5322e900f468b3205b76d0837003ad57b2 0790b89c7e911003b8c50ae50e3ac7645de1fae9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 090a3c5322e900f468b3205b76d0837003ad57b2 df77a678c33871a6e4ac5b54a71662f1d702335b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 090a3c5322e900f468b3205b76d0837003ad57b2 e2355d513b89a2cb511b4ded0deb426cdb01acd0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 090a3c5322e900f468b3205b76d0837003ad57b2 04e85a3285b0e5c5af6fd2c0fd6e95ffecc01945 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 090a3c5322e900f468b3205b76d0837003ad57b2 7253b4fed46471cc247c6cacefac890a8472c083 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 090a3c5322e900f468b3205b76d0837003ad57b2 78c6e39fef5c428960aff742149bba302dd46f5a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 090a3c5322e900f468b3205b76d0837003ad57b2 81c68e218ab883dfa368460a59b674084c0240da git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 090a3c5322e900f468b3205b76d0837003ad57b2 a4e772898f8bf2e7e1cf661a12c60a5612c4afab git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.12","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.12 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.19.322 4.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.4.284 5.4.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.226 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.167 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.110 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.51 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.10.10 6.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.11 * original_commit_for_fix","platforms":[]},{"source":"ADP","vendor":"Siemens","product":"RUGGEDCOM RST2428P","version":"affected V3.2 custom","platforms":[]},{"source":"ADP","vendor":"Siemens","product":"SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family","version":"affected V3.2 custom","platforms":[]},{"source":"ADP","vendor":"Siemens","product":"SCALANCE XCM-/XRM-/XCH-/XRH-300 family","version":"affected V3.2 custom","platforms":[]},{"source":"ADP","vendor":"Siemens","product":"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem","version":"affected * custom","platforms":[]},{"source":"ADP","vendor":"Siemens","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","version":"affected V3.1.0 V3.1.5 custom","platforms":[]},{"source":"ADP","vendor":"Siemens","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","version":"affected V3.1.0 V3.1.5 custom","platforms":[]},{"source":"ADP","vendor":"Siemens","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","version":"affected V3.1.0 V3.1.5 custom","platforms":[]},{"source":"ADP","vendor":"Siemens","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","version":"affected V3.1.0 V3.1.5 custom","platforms":[]},{"source":"ADP","vendor":"Siemens","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","version":"affected V3.1.0 V3.1.5 custom","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2024","cve_id":"46750","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2024-46750","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2024-09-29T14:47:52.159037Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2024-09-29T14:48:07.141Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"},{"providerMetadata":{"dateUpdated":"2025-11-03T22:17:46.292Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"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"}],"title":"CVE Program Container"},{"affected":[{"defaultStatus":"unknown","product":"RUGGEDCOM RST2428P","vendor":"Siemens","versions":[{"lessThan":"V3.2","status":"affected","version":"0","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family","vendor":"Siemens","versions":[{"lessThan":"V3.2","status":"affected","version":"0","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SCALANCE XCM-/XRM-/XCH-/XRH-300 family","vendor":"Siemens","versions":[{"lessThan":"V3.2","status":"affected","version":"0","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"0","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"V3.1.5","status":"affected","version":"V3.1.0","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"V3.1.5","status":"affected","version":"V3.1.0","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"V3.1.5","status":"affected","version":"V3.1.0","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"V3.1.5","status":"affected","version":"V3.1.0","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"V3.1.5","status":"affected","version":"V3.1.0","versionType":"custom"}]}],"providerMetadata":{"dateUpdated":"2026-05-12T11:57:57.105Z","orgId":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","shortName":"siemens-SADP"},"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-355557.html"}],"x_adpType":"supplier"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/pci/pci.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0790b89c7e911003b8c50ae50e3ac7645de1fae9","status":"affected","version":"090a3c5322e900f468b3205b76d0837003ad57b2","versionType":"git"},{"lessThan":"df77a678c33871a6e4ac5b54a71662f1d702335b","status":"affected","version":"090a3c5322e900f468b3205b76d0837003ad57b2","versionType":"git"},{"lessThan":"e2355d513b89a2cb511b4ded0deb426cdb01acd0","status":"affected","version":"090a3c5322e900f468b3205b76d0837003ad57b2","versionType":"git"},{"lessThan":"04e85a3285b0e5c5af6fd2c0fd6e95ffecc01945","status":"affected","version":"090a3c5322e900f468b3205b76d0837003ad57b2","versionType":"git"},{"lessThan":"7253b4fed46471cc247c6cacefac890a8472c083","status":"affected","version":"090a3c5322e900f468b3205b76d0837003ad57b2","versionType":"git"},{"lessThan":"78c6e39fef5c428960aff742149bba302dd46f5a","status":"affected","version":"090a3c5322e900f468b3205b76d0837003ad57b2","versionType":"git"},{"lessThan":"81c68e218ab883dfa368460a59b674084c0240da","status":"affected","version":"090a3c5322e900f468b3205b76d0837003ad57b2","versionType":"git"},{"lessThan":"a4e772898f8bf2e7e1cf661a12c60a5612c4afab","status":"affected","version":"090a3c5322e900f468b3205b76d0837003ad57b2","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/pci/pci.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.12"},{"lessThan":"3.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"4.19.*","status":"unaffected","version":"4.19.322","versionType":"semver"},{"lessThanOrEqual":"5.4.*","status":"unaffected","version":"5.4.284","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.226","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.167","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.110","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.51","versionType":"semver"},{"lessThanOrEqual":"6.10.*","status":"unaffected","version":"6.10.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.11","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"4.19.322","versionStartIncluding":"3.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.4.284","versionStartIncluding":"3.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.226","versionStartIncluding":"3.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.167","versionStartIncluding":"3.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.110","versionStartIncluding":"3.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.51","versionStartIncluding":"3.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.10.10","versionStartIncluding":"3.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.11","versionStartIncluding":"3.12","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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]"}],"providerMetadata":{"dateUpdated":"2026-05-11T20:35:41.081Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2024-46750","datePublished":"2024-09-18T07:12:10.484Z","dateReserved":"2024-09-11T15:12:18.267Z","dateUpdated":"2026-05-12T11:57:57.105Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2024-09-18 08:15:03","lastModifiedDate":"2026-05-12 12:17:11","problem_types":["CWE-667"],"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}]},"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"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2024","CveId":"46750","Ordinal":"1","Title":"PCI: Add missing bridge lock to pci_bus_lock()","CVE":"CVE-2024-46750","Year":"2024"},"notes":[{"CveYear":"2024","CveId":"46750","Ordinal":"1","NoteData":"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]","Type":"Description","Title":"PCI: Add missing bridge lock to pci_bus_lock()"}]}}}