{"api_version":"1","generated_at":"2026-05-15T13:47:41+00:00","cve":"CVE-2026-43200","urls":{"html":"https://cve.report/CVE-2026-43200","api":"https://cve.report/api/cve/CVE-2026-43200.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-43200","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43200"},"summary":{"title":"PCI: endpoint: Fix swapped parameters in pci_{primary/secondary}_epc_epf_unlink() functions","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: Fix swapped parameters in pci_{primary/secondary}_epc_epf_unlink() functions\n\nstruct configfs_item_operations callbacks are defined like the following:\n\n  int (*allow_link)(struct config_item *src, struct config_item *target);\n  void (*drop_link)(struct config_item *src, struct config_item *target);\n\nWhile pci_primary_epc_epf_link() and pci_secondary_epc_epf_link() specify\nthe parameters in the correct order, pci_primary_epc_epf_unlink() and\npci_secondary_epc_epf_unlink() specify the parameters in the wrong order,\nleading to the below kernel crash when using the unlink command in\nconfigfs:\n\n  Unable to handle kernel paging request at virtual address 0000000300000857\n  Mem abort info:\n  ...\n  pc : string+0x54/0x14c\n  lr : vsnprintf+0x280/0x6e8\n  ...\n  string+0x54/0x14c\n  vsnprintf+0x280/0x6e8\n  vprintk_default+0x38/0x4c\n  vprintk+0xc4/0xe0\n  pci_epf_unbind+0xdc/0x108\n  configfs_unlink+0xe0/0x208+0x44/0x74\n  vfs_unlink+0x120/0x29c\n  __arm64_sys_unlinkat+0x3c/0x90\n  invoke_syscall+0x48/0x134\n  do_el0_svc+0x1c/0x30prop.0+0xd0/0xf0\n\n[mani: cced stable, changed commit message as per https://lore.kernel.org/linux-pci/aV9joi3jF1R6ca02@ryzen]","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-06 12:16:39","updated_at":"2026-05-11 20:10:53"},"problem_types":["NVD-CWE-noinfo"],"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://git.kernel.org/stable/c/58686bf62cb38b92e4b28408162a5703775b4d12","name":"https://git.kernel.org/stable/c/58686bf62cb38b92e4b28408162a5703775b4d12","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/733cbc3aa97e71cc70847e75c925b364cc9b04a6","name":"https://git.kernel.org/stable/c/733cbc3aa97e71cc70847e75c925b364cc9b04a6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1c96c1acef4b4a1108fc13f84a8ac0b0633bbb46","name":"https://git.kernel.org/stable/c/1c96c1acef4b4a1108fc13f84a8ac0b0633bbb46","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/142b1bba3299264b76ed8ef53cd93b2b2af65d6c","name":"https://git.kernel.org/stable/c/142b1bba3299264b76ed8ef53cd93b2b2af65d6c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/339191811e6fc4559c4008c5af7a91b05086d596","name":"https://git.kernel.org/stable/c/339191811e6fc4559c4008c5af7a91b05086d596","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/aefc0e0bd20f54abe3b501b8798c0be656af272b","name":"https://git.kernel.org/stable/c/aefc0e0bd20f54abe3b501b8798c0be656af272b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8754dd7639ab0fd68c3ab9d91c7bdecc3e5740a8","name":"https://git.kernel.org/stable/c/8754dd7639ab0fd68c3ab9d91c7bdecc3e5740a8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43200","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43200","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e85a2d7837622bd99c96f5bbc7f972da90c285a2 58686bf62cb38b92e4b28408162a5703775b4d12 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e85a2d7837622bd99c96f5bbc7f972da90c285a2 1c96c1acef4b4a1108fc13f84a8ac0b0633bbb46 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e85a2d7837622bd99c96f5bbc7f972da90c285a2 142b1bba3299264b76ed8ef53cd93b2b2af65d6c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e85a2d7837622bd99c96f5bbc7f972da90c285a2 339191811e6fc4559c4008c5af7a91b05086d596 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.75 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.16 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.6 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"43200","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":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/pci/endpoint/pci-ep-cfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"58686bf62cb38b92e4b28408162a5703775b4d12","status":"affected","version":"e85a2d7837622bd99c96f5bbc7f972da90c285a2","versionType":"git"},{"lessThan":"1c96c1acef4b4a1108fc13f84a8ac0b0633bbb46","status":"affected","version":"e85a2d7837622bd99c96f5bbc7f972da90c285a2","versionType":"git"},{"lessThan":"142b1bba3299264b76ed8ef53cd93b2b2af65d6c","status":"affected","version":"e85a2d7837622bd99c96f5bbc7f972da90c285a2","versionType":"git"},{"lessThan":"339191811e6fc4559c4008c5af7a91b05086d596","status":"affected","version":"e85a2d7837622bd99c96f5bbc7f972da90c285a2","versionType":"git"},{"lessThan":"733cbc3aa97e71cc70847e75c925b364cc9b04a6","status":"affected","version":"e85a2d7837622bd99c96f5bbc7f972da90c285a2","versionType":"git"},{"lessThan":"aefc0e0bd20f54abe3b501b8798c0be656af272b","status":"affected","version":"e85a2d7837622bd99c96f5bbc7f972da90c285a2","versionType":"git"},{"lessThan":"8754dd7639ab0fd68c3ab9d91c7bdecc3e5740a8","status":"affected","version":"e85a2d7837622bd99c96f5bbc7f972da90c285a2","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/pci/endpoint/pci-ep-cfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.12"},{"lessThan":"5.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.202","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.165","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.128","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.16","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.202","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.165","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.128","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.75","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.16","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.6","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"5.12","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: Fix swapped parameters in pci_{primary/secondary}_epc_epf_unlink() functions\n\nstruct configfs_item_operations callbacks are defined like the following:\n\n  int (*allow_link)(struct config_item *src, struct config_item *target);\n  void (*drop_link)(struct config_item *src, struct config_item *target);\n\nWhile pci_primary_epc_epf_link() and pci_secondary_epc_epf_link() specify\nthe parameters in the correct order, pci_primary_epc_epf_unlink() and\npci_secondary_epc_epf_unlink() specify the parameters in the wrong order,\nleading to the below kernel crash when using the unlink command in\nconfigfs:\n\n  Unable to handle kernel paging request at virtual address 0000000300000857\n  Mem abort info:\n  ...\n  pc : string+0x54/0x14c\n  lr : vsnprintf+0x280/0x6e8\n  ...\n  string+0x54/0x14c\n  vsnprintf+0x280/0x6e8\n  vprintk_default+0x38/0x4c\n  vprintk+0xc4/0xe0\n  pci_epf_unbind+0xdc/0x108\n  configfs_unlink+0xe0/0x208+0x44/0x74\n  vfs_unlink+0x120/0x29c\n  __arm64_sys_unlinkat+0x3c/0x90\n  invoke_syscall+0x48/0x134\n  do_el0_svc+0x1c/0x30prop.0+0xd0/0xf0\n\n[mani: cced stable, changed commit message as per https://lore.kernel.org/linux-pci/aV9joi3jF1R6ca02@ryzen]"}],"providerMetadata":{"dateUpdated":"2026-05-06T11:28:06.904Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/58686bf62cb38b92e4b28408162a5703775b4d12"},{"url":"https://git.kernel.org/stable/c/1c96c1acef4b4a1108fc13f84a8ac0b0633bbb46"},{"url":"https://git.kernel.org/stable/c/142b1bba3299264b76ed8ef53cd93b2b2af65d6c"},{"url":"https://git.kernel.org/stable/c/339191811e6fc4559c4008c5af7a91b05086d596"},{"url":"https://git.kernel.org/stable/c/733cbc3aa97e71cc70847e75c925b364cc9b04a6"},{"url":"https://git.kernel.org/stable/c/aefc0e0bd20f54abe3b501b8798c0be656af272b"},{"url":"https://git.kernel.org/stable/c/8754dd7639ab0fd68c3ab9d91c7bdecc3e5740a8"}],"title":"PCI: endpoint: Fix swapped parameters in pci_{primary/secondary}_epc_epf_unlink() functions","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-43200","datePublished":"2026-05-06T11:28:06.904Z","dateReserved":"2026-05-01T14:12:55.992Z","dateUpdated":"2026-05-06T11:28:06.904Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-06 12:16:39","lastModifiedDate":"2026-05-11 20:10:53","problem_types":["NVD-CWE-noinfo"],"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:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"5.15.202","matchCriteriaId":"D50913C4-6689-4F0C-A587-7397F492A17C"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.165","matchCriteriaId":"797C7F46-D0BE-4FB8-A502-C5EF8E6B6654"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.128","matchCriteriaId":"851E9353-6C09-4CC9-877E-E09DB164A3C2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.75","matchCriteriaId":"BCE16369-98ED-41CF-8995-DFDC10B288D2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.18.16","matchCriteriaId":"B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"6.19.6","matchCriteriaId":"373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"43200","Ordinal":"1","Title":"PCI: endpoint: Fix swapped parameters in pci_{primary/secondary}","CVE":"CVE-2026-43200","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43200","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: Fix swapped parameters in pci_{primary/secondary}_epc_epf_unlink() functions\n\nstruct configfs_item_operations callbacks are defined like the following:\n\n  int (*allow_link)(struct config_item *src, struct config_item *target);\n  void (*drop_link)(struct config_item *src, struct config_item *target);\n\nWhile pci_primary_epc_epf_link() and pci_secondary_epc_epf_link() specify\nthe parameters in the correct order, pci_primary_epc_epf_unlink() and\npci_secondary_epc_epf_unlink() specify the parameters in the wrong order,\nleading to the below kernel crash when using the unlink command in\nconfigfs:\n\n  Unable to handle kernel paging request at virtual address 0000000300000857\n  Mem abort info:\n  ...\n  pc : string+0x54/0x14c\n  lr : vsnprintf+0x280/0x6e8\n  ...\n  string+0x54/0x14c\n  vsnprintf+0x280/0x6e8\n  vprintk_default+0x38/0x4c\n  vprintk+0xc4/0xe0\n  pci_epf_unbind+0xdc/0x108\n  configfs_unlink+0xe0/0x208+0x44/0x74\n  vfs_unlink+0x120/0x29c\n  __arm64_sys_unlinkat+0x3c/0x90\n  invoke_syscall+0x48/0x134\n  do_el0_svc+0x1c/0x30prop.0+0xd0/0xf0\n\n[mani: cced stable, changed commit message as per https://lore.kernel.org/linux-pci/aV9joi3jF1R6ca02@ryzen]","Type":"Description","Title":"PCI: endpoint: Fix swapped parameters in pci_{primary/secondary}"}]}}}