{"dataType":"CVE_RECORD","cveMetadata":{"cveId":"CVE-2024-27437","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-25T13:47:42.687Z","datePublished":"2024-04-05T08:24:44.561Z","dateUpdated":"2026-05-12T11:51:40.351Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T20:10:47.644Z"},"descriptions":[{"lang":"en","value":"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/vfio/pci/vfio_pci_intrs.c"],"versions":[{"version":"89e1f7d4c66d85f42c3d52ea3866eb10cadf6153","lessThan":"26389925d6c2126fb777821a0a983adca7ee6351","status":"affected","versionType":"git"},{"version":"89e1f7d4c66d85f42c3d52ea3866eb10cadf6153","lessThan":"561d5e1998d58b54ce2bbbb3e843b669aa0b3db5","status":"affected","versionType":"git"},{"version":"89e1f7d4c66d85f42c3d52ea3866eb10cadf6153","lessThan":"b7a2f0955ffceffadfe098b40b50307431f45438","status":"affected","versionType":"git"},{"version":"89e1f7d4c66d85f42c3d52ea3866eb10cadf6153","lessThan":"139dfcc4d723ab13469881200c7d80f49d776060","status":"affected","versionType":"git"},{"version":"89e1f7d4c66d85f42c3d52ea3866eb10cadf6153","lessThan":"2a4a666c45107206605b7b5bc20545f8aabc4fa2","status":"affected","versionType":"git"},{"version":"89e1f7d4c66d85f42c3d52ea3866eb10cadf6153","lessThan":"3b3491ad0f80d913e7d255941d4470f4a4d9bfda","status":"affected","versionType":"git"},{"version":"89e1f7d4c66d85f42c3d52ea3866eb10cadf6153","lessThan":"bf0bc84a20e6109ab07d5dc072067bd01eb931ec","status":"affected","versionType":"git"},{"version":"89e1f7d4c66d85f42c3d52ea3866eb10cadf6153","lessThan":"fe9a7082684eb059b925c535682e68c34d487d43","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/vfio/pci/vfio_pci_intrs.c"],"versions":[{"version":"3.6","status":"affected"},{"version":"0","lessThan":"3.6","status":"unaffected","versionType":"semver"},{"version":"5.4.274","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.215","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.154","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.84","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.24","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.7.12","lessThanOrEqual":"6.7.*","status":"unaffected","versionType":"semver"},{"version":"6.8.3","lessThanOrEqual":"6.8.*","status":"unaffected","versionType":"semver"},{"version":"6.9","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.6","versionEndExcluding":"5.4.274"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.6","versionEndExcluding":"5.10.215"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.6","versionEndExcluding":"5.15.154"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.6","versionEndExcluding":"6.1.84"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.6","versionEndExcluding":"6.6.24"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.6","versionEndExcluding":"6.7.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.6","versionEndExcluding":"6.8.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.6","versionEndExcluding":"6.9"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/26389925d6c2126fb777821a0a983adca7ee6351"},{"url":"https://git.kernel.org/stable/c/561d5e1998d58b54ce2bbbb3e843b669aa0b3db5"},{"url":"https://git.kernel.org/stable/c/b7a2f0955ffceffadfe098b40b50307431f45438"},{"url":"https://git.kernel.org/stable/c/139dfcc4d723ab13469881200c7d80f49d776060"},{"url":"https://git.kernel.org/stable/c/2a4a666c45107206605b7b5bc20545f8aabc4fa2"},{"url":"https://git.kernel.org/stable/c/3b3491ad0f80d913e7d255941d4470f4a4d9bfda"},{"url":"https://git.kernel.org/stable/c/bf0bc84a20e6109ab07d5dc072067bd01eb931ec"},{"url":"https://git.kernel.org/stable/c/fe9a7082684eb059b925c535682e68c34d487d43"}],"title":"vfio/pci: 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