cbcvebase.
CVE-2024-27437
published 2024-04-05

CVE-2024-27437: In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Disable auto-enable of exclusive INTx IRQ Currently for devices requiring masking…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.24%
15.2th percentile
In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Disable auto-enable of exclusive INTx IRQ Currently for devices requiring masking at the irqchip for INTx, ie. devices without DisINTx support, the IRQ is enabled in request_irq() and subsequently disabled as necessary to align with the masked status flag. This presents a window where the interrupt could fire between these events, resulting in the IRQ incrementing the disable depth twice. This would be unrecoverable for a user since the masked flag prevents nested enables through vfio. Instead, invert the logic using IRQF_NO_AUTOEN such that exclusive INTx is never auto-enabled, then unmask as required.

Affected

27 ranges· showing 25
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 6.1.85-1 (bookworm)linux 6.1.85-1 (bookworm)
linuxlinux
linuxlinux>= 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 < 26389925d6c2126fb777821a0a983adca7ee635126389925d6c2126fb777821a0a983adca7ee6351
linuxlinux>= 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 < 561d5e1998d58b54ce2bbbb3e843b669aa0b3db5561d5e1998d58b54ce2bbbb3e843b669aa0b3db5
linuxlinux>= 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 < b7a2f0955ffceffadfe098b40b50307431f45438b7a2f0955ffceffadfe098b40b50307431f45438
linuxlinux>= 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 < 139dfcc4d723ab13469881200c7d80f49d776060139dfcc4d723ab13469881200c7d80f49d776060
linuxlinux>= 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 < 2a4a666c45107206605b7b5bc20545f8aabc4fa22a4a666c45107206605b7b5bc20545f8aabc4fa2
linuxlinux>= 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 < 3b3491ad0f80d913e7d255941d4470f4a4d9bfda3b3491ad0f80d913e7d255941d4470f4a4d9bfda
linuxlinux>= 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 < bf0bc84a20e6109ab07d5dc072067bd01eb931ecbf0bc84a20e6109ab07d5dc072067bd01eb931ec
linuxlinux>= 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 < fe9a7082684eb059b925c535682e68c34d487d43fe9a7082684eb059b925c535682e68c34d487d43
linuxlinux_kernel>= 0 < 5.10.216-15.10.216-1
linuxlinux_kernel>= 0 < 6.1.85-16.1.85-1
linuxlinux_kernel>= 0 < 6.7.12-16.7.12-1
linuxlinux_kernel>= 0 < 6.7.12-16.7.12-1
linuxlinux_kernel>= 0 < 5.4.0-189.2095.4.0-189.209
linuxlinux_kernel>= 0 < 5.15.0-116.1265.15.0-116.126
linuxlinux_kernel>= 0 < 6.8.0-35.356.8.0-35.35
linuxlinux_kernel>= 0 < 4.4.0-259.2934.4.0-259.293
linuxlinux_kernel>= 0 < 4.15.0-229.2414.15.0-229.241
linuxlinux_kernel>= 3.6 < 6.1.846.1.84
linuxlinux_kernel>= 6.2 < 6.6.246.6.24
linuxlinux_kernel>= 6.7 < 6.7.126.7.12
linuxlinux_kernel>= 6.8 < 6.8.36.8.3
linuxlinux_kernel6.8.4 – 6.8.12

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv7.0HIGH
vendor_ubuntu7.0HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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