264 lines
14 KiB
JSON
264 lines
14 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-2026-90007",
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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": "2026-09-11T19:38:34.781Z",
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"datePublished": "2026-09-16T10:33:16.098Z",
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"dateUpdated": "2026-10-19T08:56:21.169Z"
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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": "2026-10-19T08:56:21.169Z"
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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\nscsi: pm8001: Use rollback index when freeing MSI-X vectors\n\npm8001_request_msix() unwinds previously registered handlers with\nfree_irq() when request_irq() fails. The rollback loop uses the failing\nindex i for every iteration instead of the already registered vector\nindex j.\n\nThat passes the wrong IRQ/dev_id pair to free_irq() and leaves the\nearlier handlers installed. Use j for both pci_irq_vector() and the\nmatching irq_vector entry in the rollback loop."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The bug is in pm8001_request_msix() on the PCI SAS HBA probe and resume path (pm8001_pci_probe/pm8001_pci_resume → pm8001_alloc/pm8001_request_irq), not in network, FC, or USB packet processing; PMC-Sierra/Microchip/ATTO/Adaptec SPCv controllers are local PCI devices in storage servers and workstations.\nAC:L - Once request_irq() fails after any earlier MSI-X vector succeeded, rollback always free_irq()s the failing index i instead of registered index j, then pci_free_irq_vectors() and kfree of the HBA; a local attacker can induce that partial failure with memory or IRQ exhaustion and does not depend on an uncontrolled race.\nPR:L - An unprivileged local user on a machine with a multi-vector SPCv pm8001 HBA can apply memory pressure during probe, deferred probe, or resume so a later request_irq() fails, then spray the heap against the leftover IRQ handler; PCI bind/unbind needs init-namespace root but is not required to exploit the planted UAF.\nUI:N - No victim must mount a filesystem, open a device, or plug hardware; the attacker induces the MSI-X request failure and consumes the leftover handler without another user's action.\nS:U - The leftover irqaction and use-after-free of pm8001_hba_info stay in the host kernel IRQ/SCSI path and do not cross a VM, IOMMU, or other security-authority boundary.\nC:H - Failed MSI-X registration leaves pm8001_interrupt_handler_msix installed with dev_id pointing into pm8001_ha, which pm8001_free() then kfree()s, a use-after-free that per kernel CNA guidance enables arbitrary kernel memory disclosure via slab reuse.\nI:H - The same dangling MSI-X handler reads irq_vector->drv_inst and invokes isr/tasklet on the freed HBA object; reclaiming that heap allocation yields write and control-flow hijack primitives, so integrity impact is High.\nA:H - Wrong-index free_irq() hits WARN on an already-free IRQ, pci_free_irq_vectors() tears down descriptors with live irqactions, and a later IRQ or panic_on_warn can oops or panic the kernel, fully denying availability."
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}
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]
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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/scsi/pm8001/pm8001_init.c"
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],
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"versions": [
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{
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"version": "a76037ff3479ad333a2505061915f7a21e7f3fb6",
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"lessThan": "f39e3ca1f688d7c08954a0794e9bf1e279c83b15",
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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": "a76037ff3479ad333a2505061915f7a21e7f3fb6",
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"lessThan": "a980dec7c69990e4f119bcf6a2ea093d1c4975e8",
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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": "a76037ff3479ad333a2505061915f7a21e7f3fb6",
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"lessThan": "0205db768570f9a46b20912afa581a0c7a63d8b7",
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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": "a76037ff3479ad333a2505061915f7a21e7f3fb6",
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"lessThan": "2853ce9c88e0e6dd575f95f28b3a8c2b27164115",
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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": "a76037ff3479ad333a2505061915f7a21e7f3fb6",
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"lessThan": "fb22a8d2f3ac6665cc8bee197096b6675cac1a9f",
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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": "a76037ff3479ad333a2505061915f7a21e7f3fb6",
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"lessThan": "dd817463c9b42a3a9e23d15b86c6c77a6cfb809d",
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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": "a76037ff3479ad333a2505061915f7a21e7f3fb6",
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"lessThan": "e20b16aa3b49f9db5510940740255a987e6f2a6f",
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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": "a76037ff3479ad333a2505061915f7a21e7f3fb6",
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"lessThan": "3f92a64545165bdbb36dee8fa35626b295463313",
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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/scsi/pm8001/pm8001_init.c"
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],
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"versions": [
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{
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"version": "4.11",
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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": "4.11",
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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": "5.10.270",
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"lessThanOrEqual": "5.10.*",
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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": "5.15.221",
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"lessThanOrEqual": "5.15.*",
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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": "6.1.188",
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"lessThanOrEqual": "6.1.*",
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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": "6.6.157",
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"lessThanOrEqual": "6.6.*",
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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": "6.12.110",
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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": "6.18.51",
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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": "7.2.5",
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"lessThanOrEqual": "7.2.*",
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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": "7.3",
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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": "4.11",
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"versionEndExcluding": "5.10.270"
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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": "4.11",
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"versionEndExcluding": "5.15.221"
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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": "4.11",
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"versionEndExcluding": "6.1.188"
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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": "4.11",
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"versionEndExcluding": "6.6.157"
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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": "4.11",
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"versionEndExcluding": "6.12.110"
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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": "4.11",
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"versionEndExcluding": "6.18.51"
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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": "4.11",
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"versionEndExcluding": "7.2.5"
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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": "4.11",
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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/f39e3ca1f688d7c08954a0794e9bf1e279c83b15"
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},
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{
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"url": "https://git.kernel.org/stable/c/a980dec7c69990e4f119bcf6a2ea093d1c4975e8"
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},
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{
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"url": "https://git.kernel.org/stable/c/0205db768570f9a46b20912afa581a0c7a63d8b7"
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},
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{
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"url": "https://git.kernel.org/stable/c/2853ce9c88e0e6dd575f95f28b3a8c2b27164115"
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},
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{
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"url": "https://git.kernel.org/stable/c/fb22a8d2f3ac6665cc8bee197096b6675cac1a9f"
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},
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{
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"url": "https://git.kernel.org/stable/c/dd817463c9b42a3a9e23d15b86c6c77a6cfb809d"
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},
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{
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"url": "https://git.kernel.org/stable/c/e20b16aa3b49f9db5510940740255a987e6f2a6f"
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},
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{
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"url": "https://git.kernel.org/stable/c/3f92a64545165bdbb36dee8fa35626b295463313"
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}
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],
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"title": "scsi: pm8001: Use rollback index when freeing MSI-X vectors",
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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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} |