202 lines
9.9 KiB
JSON
202 lines
9.9 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-80894",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-08-26T14:34:25.800Z",
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"datePublished": "2026-09-04T17:11:10.093Z",
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"dateUpdated": "2026-09-04T17:11:10.093Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-09-04T17:11:10.093Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommufd: Fix wrong hwpt passed to iommufd_auto_response_faults on replace\n\niommufd_hwpt_replace_device() calls:\n\n\tiommufd_auto_response_faults(hwpt, old_handle);\n\npassing the *new* hwpt together with the handle of\nthe device's *old* domain. This should be a parameter mismatch:\n\n1. Semantically, iommufd_auto_response_faults(x, handle) scans\n x->fault's deliver list and response xarray for groups matching\n \"handle\". A group is queued under the hwpt that was attached at\n fault-delivery time. old_handle is fetched *before* the domain switch,\n so its group lives on old->fault, not on the new hwpt->fault.\n\n2. Historically, the first argument was \"old\". The routine was\n introduced by commit b7d8833677ba (\"iommufd: Fault-capable hwpt\n attach/detach/replace\") as __fault_domain_replace_dev() in\n fault.c, correctly calling iommufd_auto_response_faults(old, curr).\n Commit fb21b1568ada (\"iommufd: Make attach_handle generic than\n fault specific\") moved this into iommufd_hwpt_replace_device() in\n device.c and swapped it to \"hwpt\". This should be a refactor regression,\n not an intentional change.\n\nFix this by passing \"old\" instead."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/iommu/iommufd/device.c"
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],
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"versions": [
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{
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"version": "6d11543bf37abdf60b8e6022a62fccfb82a5fe2e",
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"lessThan": "adb87155b67f9759ff010c0a99559f5bffa45dcf",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "fb21b1568adaa76af7a8c853f37c60fba8b28661",
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"lessThan": "564ac339c0f8bada4e77a57a92bab9d3df635e07",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "fb21b1568adaa76af7a8c853f37c60fba8b28661",
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"lessThan": "8eb077025279304268bd58657f0af3d388822b21",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "fb21b1568adaa76af7a8c853f37c60fba8b28661",
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"lessThan": "ba5c0f28a26e7d9be1e0997f8920dd638e2782fd",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "1e0216b6a58c79b5ee91c78706d5f560e4d1f56f",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4b23c4b991eb90cc7bca42e9f81142feedd4bb56",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "6.12.24",
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"lessThan": "6.12.105",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.13.12",
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"lessThan": "6.14",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.14.3",
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"lessThan": "6.15",
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"status": "affected",
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"versionType": "semver"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/iommu/iommufd/device.c"
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],
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"versions": [
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{
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"version": "6.15",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.15",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.105",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.44",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.1.8",
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"lessThanOrEqual": "7.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.12.24",
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"versionEndExcluding": "6.12.105"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.15",
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"versionEndExcluding": "6.18.44"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.15",
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"versionEndExcluding": "7.1.8"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.15",
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"versionEndExcluding": "7.2"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.13.12"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.14.3"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/adb87155b67f9759ff010c0a99559f5bffa45dcf"
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},
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{
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"url": "https://git.kernel.org/stable/c/564ac339c0f8bada4e77a57a92bab9d3df635e07"
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},
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{
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"url": "https://git.kernel.org/stable/c/8eb077025279304268bd58657f0af3d388822b21"
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},
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{
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"url": "https://git.kernel.org/stable/c/ba5c0f28a26e7d9be1e0997f8920dd638e2782fd"
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}
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],
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"title": "iommufd: Fix wrong hwpt passed to iommufd_auto_response_faults on replace",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |