{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43097", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.984Z", "datePublished": "2026-05-06T07:40:28.157Z", "dateUpdated": "2026-05-06T07:40:28.157Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-06T07:40:28.157Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: hv: Fix double ida_free in hv_pci_probe error path\n\nIf hv_pci_probe() fails after storing the domain number in\nhbus->bridge->domain_nr, there is a call to free this domain_nr via\npci_bus_release_emul_domain_nr(), however, during cleanup, the bridge\nrelease callback pci_release_host_bridge_dev() also frees the domain_nr\ncausing ida_free to be called on same ID twice and triggering following\nwarning:\n\n ida_free called for id=28971 which is not allocated.\n WARNING: lib/idr.c:594 at ida_free+0xdf/0x160, CPU#0: kworker/0:2/198\n Call Trace:\n pci_bus_release_emul_domain_nr+0x17/0x20\n pci_release_host_bridge_dev+0x4b/0x60\n device_release+0x3b/0xa0\n kobject_put+0x8e/0x220\n devm_pci_alloc_host_bridge_release+0xe/0x20\n devres_release_all+0x9a/0xd0\n device_unbind_cleanup+0x12/0xa0\n really_probe+0x1c5/0x3f0\n vmbus_add_channel_work+0x135/0x1a0\n\nFix this by letting pci core handle the free domain_nr and remove\nthe explicit free called in pci-hyperv driver."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/pci/controller/pci-hyperv.c"], "versions": [{"version": "bcce8c74f1ce1e2731ac0261287897e3768767d8", "lessThan": "21bc8e0ba5c2a081b0a2808c976d4c9dbddf1e48", "status": "affected", "versionType": "git"}, {"version": "bcce8c74f1ce1e2731ac0261287897e3768767d8", "lessThan": "b6422dff0e518245019233432b6bccfc30b73e2f", "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/controller/pci-hyperv.c"], "versions": [{"version": "6.19", "status": "affected"}, {"version": "0", "lessThan": "6.19", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.14", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "6.19.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/21bc8e0ba5c2a081b0a2808c976d4c9dbddf1e48"}, {"url": "https://git.kernel.org/stable/c/b6422dff0e518245019233432b6bccfc30b73e2f"}], "title": "PCI: hv: Fix double ida_free in hv_pci_probe error path", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: hv: Fix double ida_free in hv_pci_probe error path\n\nIf hv_pci_probe() fails after storing the domain number in\nhbus->bridge->domain_nr, there is a call to free this domain_nr via\npci_bus_release_emul_domain_nr(), however, during cleanup, the bridge\nrelease callback pci_release_host_bridge_dev() also frees the domain_nr\ncausing ida_free to be called on same ID twice and triggering following\nwarning:\n\n ida_free called for id=28971 which is not allocated.\n WARNING: lib/idr.c:594 at ida_free+0xdf/0x160, CPU#0: kworker/0:2/198\n Call Trace:\n pci_bus_release_emul_domain_nr+0x17/0x20\n pci_release_host_bridge_dev+0x4b/0x60\n device_release+0x3b/0xa0\n kobject_put+0x8e/0x220\n devm_pci_alloc_host_bridge_release+0xe/0x20\n devres_release_all+0x9a/0xd0\n device_unbind_cleanup+0x12/0xa0\n really_probe+0x1c5/0x3f0\n vmbus_add_channel_work+0x135/0x1a0\n\nFix this by letting pci core handle the free domain_nr and remove\nthe explicit free called in pci-hyperv driver."}], "id": "CVE-2026-43097", "lastModified": "2026-05-06T13:08:07.970", "metrics": {}, "published": "2026-05-06T10:16:23.137", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/21bc8e0ba5c2a081b0a2808c976d4c9dbddf1e48"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b6422dff0e518245019233432b6bccfc30b73e2f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[bcce8c74f1ce1e2731ac0261287897e3768767d8,21bc8e0ba5c2a081b0a2808c976d4c9dbddf1e48)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[bcce8c74f1ce1e2731ac0261287897e3768767d8,b6422dff0e518245019233432b6bccfc30b73e2f)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.19)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.14,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-06T12:15:03.443358+00:00", "updated": "2026-05-06T12:15:03.931217+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-414"]}