164 lines
7.7 KiB
JSON
164 lines
7.7 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-2026-46034",
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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": "2026-05-13T15:03:33.093Z",
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"datePublished": "2026-05-27T12:56:43.389Z",
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"dateUpdated": "2026-06-14T17:49:29.082Z"
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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": "2026-06-14T17:49:29.082Z"
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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\nvfio/cdx: Fix NULL pointer dereference in interrupt trigger path\n\nAdd validation to ensure MSI is configured before accessing cdx_irqs\narray in vfio_cdx_set_msi_trigger(). Without this check, userspace\ncan trigger a NULL pointer dereference by calling VFIO_DEVICE_SET_IRQS\nwith VFIO_IRQ_SET_DATA_BOOL or VFIO_IRQ_SET_DATA_NONE flags before\never setting up interrupts via VFIO_IRQ_SET_DATA_EVENTFD.\n\nThe vfio_cdx_msi_enable() function allocates the cdx_irqs array and\nsets config_msi to 1 only when called through the EVENTFD path. The\ntrigger loop (for DATA_BOOL/DATA_NONE) assumed this had already been\ndone, but there was no enforcement of this call ordering.\n\nThis matches the protection used in the PCI VFIO driver where\nvfio_pci_set_msi_trigger() checks irq_is() before the trigger loop."
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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/vfio/cdx/intr.c"
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],
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"versions": [
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{
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"version": "848e447e000c41894ff931dc7c004fd42c8840f8",
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"lessThan": "51bf7638f33aece41cb3f4cbeb942cc52950e329",
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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": "848e447e000c41894ff931dc7c004fd42c8840f8",
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"lessThan": "5d6c349c9823eb819fed8b537b088cf38126018c",
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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": "848e447e000c41894ff931dc7c004fd42c8840f8",
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"lessThan": "338a736aaf15e8ba3635ce20b29af5b8fc15e66a",
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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": "848e447e000c41894ff931dc7c004fd42c8840f8",
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"lessThan": "5ea5880764cbb164afb17a62e76ca75dc371409d",
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"status": "affected",
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"versionType": "git"
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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/vfio/cdx/intr.c"
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],
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"versions": [
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{
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"version": "6.10",
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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": "6.10",
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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": "6.12.86",
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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": "6.18.27",
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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": "7.0.4",
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"lessThanOrEqual": "7.0.*",
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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",
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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": "6.10",
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"versionEndExcluding": "6.12.86"
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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": "6.10",
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"versionEndExcluding": "6.18.27"
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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": "6.10",
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"versionEndExcluding": "7.0.4"
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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": "6.10",
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"versionEndExcluding": "7.1"
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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/51bf7638f33aece41cb3f4cbeb942cc52950e329"
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},
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{
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"url": "https://git.kernel.org/stable/c/5d6c349c9823eb819fed8b537b088cf38126018c"
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},
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{
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"url": "https://git.kernel.org/stable/c/338a736aaf15e8ba3635ce20b29af5b8fc15e66a"
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},
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{
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"url": "https://git.kernel.org/stable/c/5ea5880764cbb164afb17a62e76ca75dc371409d"
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}
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],
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"title": "vfio/cdx: Fix NULL pointer dereference in interrupt trigger path",
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"x_generator": {
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"engine": "bippy-1.2.0"
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} |