{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-43130", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.988Z", "datePublished": "2026-05-06T11:27:18.825Z", "dateUpdated": "2026-05-23T16:06:22.409Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T16:06:22.409Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Flush dev-IOTLB only when PCIe device is accessible in scalable mode\n\nCommit 4fc82cd907ac (\"iommu/vt-d: Don't issue ATS Invalidation\nrequest when device is disconnected\") relies on\npci_dev_is_disconnected() to skip ATS invalidation for\nsafely-removed devices, but it does not cover link-down caused\nby faults, which can still hard-lock the system.\n\nFor example, if a VM fails to connect to the PCIe device,\n\"virsh destroy\" is executed to release resources and isolate\nthe fault, but a hard-lockup occurs while releasing the group fd.\n\nCall Trace:\n qi_submit_sync\n qi_flush_dev_iotlb\n intel_pasid_tear_down_entry\n device_block_translation\n blocking_domain_attach_dev\n __iommu_attach_device\n __iommu_device_set_domain\n __iommu_group_set_domain_internal\n iommu_detach_group\n vfio_iommu_type1_detach_group\n vfio_group_detach_container\n vfio_group_fops_release\n __fput\n\nAlthough pci_device_is_present() is slower than\npci_dev_is_disconnected(), it still takes only ~70 µs on a\nConnectX-5 (8 GT/s, x2) and becomes even faster as PCIe speed\nand width increase.\n\nBesides, devtlb_invalidation_with_pasid() is called only in the\npaths below, which are far less frequent than memory map/unmap.\n\n1. mm-struct release\n2. {attach,release}_dev\n3. set/remove PASID\n4. dirty-tracking setup\n\nThe gain in system stability far outweighs the negligible cost\nof using pci_device_is_present() instead of pci_dev_is_disconnected()\nto decide when to skip ATS invalidation, especially under GDR\nhigh-load conditions." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/iommu/intel/pasid.c" ], "versions": [ { "version": "f873b85ec762c5a6abe94a7ddb31df5d3ba07d85", "lessThan": "581ce094d9eafb78ec4f9de77bd24b780c151236", "status": "affected", "versionType": "git" }, { "version": "d70f1c85113cd8c2aa8373f491ca5d1b22ec0554", "lessThan": "e2c78c69f8faf2885ea4ceee08c71ac738f401a0", "status": "affected", "versionType": "git" }, { "version": "34a7b30f56d30114bf4d436e4dc793afe326fbcf", "lessThan": "ead67d0378e90f419e385a43af29435242d80c12", "status": "affected", "versionType": "git" }, { "version": "2b74b2a92e524d7c8dec8e02e95ecf18b667c062", "lessThan": "01aed2f1d7cb8fdf4c60c5bb4727608cb82b401d", "status": "affected", "versionType": "git" }, { "version": "4fc82cd907ac075648789cc3a00877778aa1838b", "lessThan": "9813306610d0d718c863aaa70928bf57d7570ec0", "status": "affected", "versionType": "git" }, { "version": "4fc82cd907ac075648789cc3a00877778aa1838b", "lessThan": "9deaacc8dcaddb6ddc5b52e1e63b457450ec0f94", "status": "affected", "versionType": "git" }, { "version": "4fc82cd907ac075648789cc3a00877778aa1838b", "lessThan": "0da6697e577023d8867c7beb2d16a22510e4eea9", "status": "affected", "versionType": "git" }, { "version": "4fc82cd907ac075648789cc3a00877778aa1838b", "lessThan": "10e60d87813989e20eac1f3eda30b3bae461e7f9", "status": "affected", "versionType": "git" }, { "version": "c04f2780919f20e2cc4846764221f5e802555868", "status": "affected", "versionType": "git" }, { "version": "025bc6b41e020aeb1e71f84ae3ffce945026de05", "status": "affected", "versionType": "git" }, { "version": "5.10.214", "lessThan": "5.10.252", "status": "affected", "versionType": "semver" }, { "version": "5.15.153", "lessThan": "5.15.202", "status": "affected", "versionType": "semver" }, { "version": "6.1.83", "lessThan": "6.1.165", "status": "affected", "versionType": "semver" }, { "version": "6.6.23", "lessThan": "6.6.128", "status": "affected", "versionType": "semver" }, { "version": "6.7.11", "lessThan": "6.8", "status": "affected", "versionType": "semver" }, { "version": "6.8.2", "lessThan": "6.9", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/iommu/intel/pasid.c" ], "versions": [ { "version": "6.9", "status": "affected" }, { "version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.252", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.202", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.165", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.128", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.16", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.19.6", "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": "5.10.214", "versionEndExcluding": "5.10.252" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.153", "versionEndExcluding": "5.15.202" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.83", "versionEndExcluding": "6.1.165" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.23", "versionEndExcluding": "6.6.128" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.12.75" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.18.16" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.19.6" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.0" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8.2" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/581ce094d9eafb78ec4f9de77bd24b780c151236" }, { "url": "https://git.kernel.org/stable/c/e2c78c69f8faf2885ea4ceee08c71ac738f401a0" }, { "url": "https://git.kernel.org/stable/c/ead67d0378e90f419e385a43af29435242d80c12" }, { "url": "https://git.kernel.org/stable/c/01aed2f1d7cb8fdf4c60c5bb4727608cb82b401d" }, { "url": "https://git.kernel.org/stable/c/9813306610d0d718c863aaa70928bf57d7570ec0" }, { "url": "https://git.kernel.org/stable/c/9deaacc8dcaddb6ddc5b52e1e63b457450ec0f94" }, { "url": "https://git.kernel.org/stable/c/0da6697e577023d8867c7beb2d16a22510e4eea9" }, { "url": "https://git.kernel.org/stable/c/10e60d87813989e20eac1f3eda30b3bae461e7f9" } ], "title": "iommu/vt-d: Flush dev-IOTLB only when PCIe device is accessible in scalable mode", "x_generator": { "engine": "bippy-1.2.0" } } } }