CVE-2024-27437

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Source
https://cve.org/CVERecord?id=CVE-2024-27437
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-27437.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-27437
Downstream
Related
Published
2024-04-05T08:24:44.561Z
Modified
2026-05-28T03:53:54.616951016Z
Summary
vfio/pci: Disable auto-enable of exclusive INTx IRQ
Details

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 IRQFNOAUTOEN such that exclusive INTx is never auto-enabled, then unmask as required.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27437.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
89e1f7d4c66d85f42c3d52ea3866eb10cadf6153
Fixed
26389925d6c2126fb777821a0a983adca7ee6351
Fixed
561d5e1998d58b54ce2bbbb3e843b669aa0b3db5
Fixed
b7a2f0955ffceffadfe098b40b50307431f45438
Fixed
139dfcc4d723ab13469881200c7d80f49d776060
Fixed
2a4a666c45107206605b7b5bc20545f8aabc4fa2
Fixed
3b3491ad0f80d913e7d255941d4470f4a4d9bfda
Fixed
bf0bc84a20e6109ab07d5dc072067bd01eb931ec
Fixed
fe9a7082684eb059b925c535682e68c34d487d43

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-27437.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.6.0
Fixed
5.4.274
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.215
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.154
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.84
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.24
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.7.12
Type
ECOSYSTEM
Events
Introduced
6.8.0
Fixed
6.8.3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-27437.json"