FKIE_CVE-2026-90082
Vulnerability from fkie_nvd - Published: 2026-09-17 17:16 - Updated: 2026-10-19 09:18| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/microsoft/mana/gdma_main.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "7b3e08eea1e8cae37e84540c5cb4aee4887e46ac",
"status": "affected",
"version": "755391121038c06cb653241aa94dcabd87179f62",
"versionType": "git"
},
{
"lessThan": "4f9827b314ee57cd99f86f8dbadcaf567112e2b2",
"status": "affected",
"version": "755391121038c06cb653241aa94dcabd87179f62",
"versionType": "git"
},
{
"lessThan": "2c7493f980140a5c40eb4f98f97c557193a2c330",
"status": "affected",
"version": "755391121038c06cb653241aa94dcabd87179f62",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/microsoft/mana/gdma_main.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.17"
},
{
"lessThan": "6.17",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.57",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: Cap MSI-X vectors to the device MSI-X table size\n\nmana_gd_query_max_resources() sizes gc-\u003enum_msix_usable from resp.max_msix\nand the CPU count, but never from the device MSI-X table. On a 1792 vCPU\nM-series VM that yields 1793 while the table has 1024 entries, and\nmana_gd_setup_remaining_irqs() then walks indices 1..1792, running off the\nend of the region mapped by msix_map_region():\n\n BUG: unable to handle page fault for address: ff8e347f8b99800c\n RIP: 0010:msix_prepare_msi_desc+0x7a/0x90\n RAX: 0000000000004000 RBX: ff4330cb164ea780 RCX: ff8e347f8b998000\n Call Trace:\n \u003cTASK\u003e\n __msi_domain_alloc_irqs+0x13a/0x440\n msi_domain_alloc_irq_at+0x149/0x1b0\n mana_gd_setup+0x351/0x890\n mana_gd_probe+0x274/0x390\n \u003c/TASK\u003e\n\nRAX is index 1024 * PCI_MSIX_ENTRY_SIZE, one entry past the table.\n\nmsi_insert_desc() does range check the index, but only against the MSI\ndomain hwsize, which matches the table only for devices on an MSI parent\ndomain. With a global PCI/MSI domain hwsize is MSI_XA_DOMAIN_SIZE, so\nnothing bounds the request.\n\nCap num_msix_usable with pci_msix_vec_count()."
}
],
"id": "CVE-2026-90082",
"lastModified": "2026-10-19T09:18:57.130",
"metrics": {},
"published": "2026-09-17T17:16:57.573",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/2c7493f980140a5c40eb4f98f97c557193a2c330"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/4f9827b314ee57cd99f86f8dbadcaf567112e2b2"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/7b3e08eea1e8cae37e84540c5cb4aee4887e46ac"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
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