CVE-2024-36898

In the Linux kernel, the following vulnerability has been resolved: gpiolib: cdev: fix uninitialised kfifo If a line is requested with debounce, and that results in debouncing in software, and the line is subsequently reconfigured to enable edge detection then the allocation of the kfifo to contain edge events is overlooked. This results in events being written to and read from an uninitialised kfifo. Read events are returned to userspace. Initialise the kfifo in the case where the software debounce is already active.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/1a51e24404d77bb3307c1e39eee0d8e86febb1a5	Patch
https://git.kernel.org/stable/c/883e4bbf06eb5fb7482679e4edb201093e9f55a2	Patch
https://git.kernel.org/stable/c/bd7139a70ee8d8ea872b223e043730cf6f5e2b0e	Patch
https://git.kernel.org/stable/c/ee0166b637a5e376118e9659e5b4148080f1d27e	Patch
https://git.kernel.org/stable/c/1a51e24404d77bb3307c1e39eee0d8e86febb1a5	Patch
https://git.kernel.org/stable/c/883e4bbf06eb5fb7482679e4edb201093e9f55a2	Patch
https://git.kernel.org/stable/c/bd7139a70ee8d8ea872b223e043730cf6f5e2b0e	Patch
https://git.kernel.org/stable/c/ee0166b637a5e376118e9659e5b4148080f1d27e	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.9:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.9:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.9:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.9:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.9:rc5::::::
	cpe:2.3:o:linux:linux_kernel:6.9:rc6::::::
	cpe:2.3:o:linux:linux_kernel:6.9:rc7::::::

History

No history.

Information

Published : 2024-05-30 16:15

Updated : 2025-09-18 14:48

NVD link : CVE-2024-36898

Mitre link : CVE-2024-36898

CVE.ORG link : CVE-2024-36898

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-908

Use of Uninitialized Resource

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This results in events being written to and read from an\nuninitialised kfifo. Read events are returned to userspace.\n\nInitialise the kfifo in the case where the software debounce is\nalready active."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: gpiolib: cdev: corrige kfifo no inicializado Si se solicita una l\u00ednea con antirrebote, y eso resulta en un antirrebote en el software, y la l\u00ednea se reconfigura posteriormente para habilitar la detecci\u00f3n de bordes, entonces se realiza la asignaci\u00f3n del Se pasa por alto kfifo para contener eventos de borde. Esto da como resultado que los eventos se escriban y lean desde un kfifo no inicializado. Los eventos le\u00eddos se devuelven al espacio de usuario. 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