{"id":"CVE-2024-27437","revision":"06001b628e9947b1b22f314bd9c0f2fa","records":[{"revision":"06001b628e9947b1b22f314bd9c0f2fa","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-27437","aliases":[],"title":"vfio/pci: Disable auto-enable of exclusive INTx IRQ","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvfio/pci: Disable auto-enable of exclusive INTx IRQ\n\nCurrently for devices requiring masking at the irqchip for INTx, ie.\ndevices without DisINTx support, the IRQ is enabled in request_irq()\nand subsequently disabled as necessary to align with the masked status\nflag.  This presents a window where the interrupt could fire between\nthese events, resulting in the IRQ incrementing the disable depth twice.\nThis would be unrecoverable for a user since the masked flag prevents\nnested enables through vfio.\n\nInstead, invert the logic using IRQF_NO_AUTOEN such that exclusive INTx\nis never auto-enabled, then unmask as required.","state":0,"publishedAt":"2024-04-05T08:24:44.561+00:00","modifiedAt":"2026-10-15T00:40:22.214+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/vfio/pci/vfio_pci_intrs.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"89e1f7d4c66d85f42c3d52ea3866eb10cadf6153\",\n                            \"lessThan\": \"26389925d6c2126fb777821a0a983adca7ee6351\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"89e1f7d4c66d85f42c3d52ea3866eb10cadf6153\",\n                            \"lessThan\": \"561d5e1998d58b54ce2bbbb3e843b669aa0b3db5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"89e1f7d4c66d85f42c3d52ea3866eb10cadf6153\",\n                            \"lessThan\": \"b7a2f0955ffceffadfe098b40b50307431f45438\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"89e1f7d4c66d85f42c3d52ea3866eb10cadf6153\",\n                            \"lessThan\": \"139dfcc4d723ab13469881200c7d80f49d776060\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"89e1f7d4c66d85f42c3d52ea3866eb10cadf6153\",\n                            \"lessThan\": \"2a4a666c45107206605b7b5bc20545f8aabc4fa2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"89e1f7d4c66d85f42c3d52ea3866eb10cadf6153\",\n                            \"lessThan\": \"3b3491ad0f80d913e7d255941d4470f4a4d9bfda\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"89e1f7d4c66d85f42c3d52ea3866eb10cadf6153\",\n                            \"lessThan\": \"bf0bc84a20e6109ab07d5dc072067bd01eb931ec\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"89e1f7d4c66d85f42c3d52ea3866eb10cadf6153\",\n                            \"lessThan\": \"fe9a7082684eb059b925c535682e68c34d487d43\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/vfio/pci/vfio_pci_intrs.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.6\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.4.274\",\n                            \"lessThanOrEqual\": \"5.4.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.215\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.154\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.84\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.24\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.7.12\",\n                            \"lessThanOrEqual\": \"6.7.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.8.3\",\n                            \"lessThanOrEqual\": \"6.8.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.9\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/26389925d6c2126fb777821a0a983adca7ee6351","https://git.kernel.org/stable/c/561d5e1998d58b54ce2bbbb3e843b669aa0b3db5","https://git.kernel.org/stable/c/b7a2f0955ffceffadfe098b40b50307431f45438","https://git.kernel.org/stable/c/139dfcc4d723ab13469881200c7d80f49d776060","https://git.kernel.org/stable/c/2a4a666c45107206605b7b5bc20545f8aabc4fa2","https://git.kernel.org/stable/c/3b3491ad0f80d913e7d255941d4470f4a4d9bfda","https://git.kernel.org/stable/c/bf0bc84a20e6109ab07d5dc072067bd01eb931ec","https://git.kernel.org/stable/c/fe9a7082684eb059b925c535682e68c34d487d43"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-27437","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-27437","identifiers":["CVE-2024-27437"]},"retained":false,"historicalAffected":[]}],"coverage":[]}