CVE-2024-46859

In the Linux kernel, the following vulnerability has been resolved: platform/x86: panasonic-laptop: Fix SINF array out of bounds accesses The panasonic laptop code in various places uses the SINF array with index values of 0 - SINF_CUR_BRIGHT(0x0d) without checking that the SINF array is big enough. Not all panasonic laptops have this many SINF array entries, for example the Toughbook CF-18 model only has 10 SINF array entries. So it only supports the AC+DC brightness entries and mute. Check that the SINF array has a minimum size which covers all AC+DC brightness entries and refuse to load if the SINF array is smaller. For higher SINF indexes hide the sysfs attributes when the SINF array does not contain an entry for that attribute, avoiding show()/store() accessing the array out of bounds and add bounds checking to the probe() and resume() code accessing these.

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/6821a82616f60aa72c5909b3e252ad97fb9f7e2a	Patch
https://git.kernel.org/stable/c/9291fadbd2720a869b1d2fcf82305648e2e62a16	Patch
https://git.kernel.org/stable/c/b38c19783286a71693c2194ed1b36665168c09c4	Patch
https://git.kernel.org/stable/c/b7c2f692307fe704be87ea80d7328782b33c3cef
https://git.kernel.org/stable/c/f52e98d16e9bd7dd2b3aef8e38db5cbc9899d6a4	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:6.11:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.11:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.11:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.11:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.11:rc5::::::
	cpe:2.3:o:linux:linux_kernel:6.11:rc6::::::
	cpe:2.3:o:linux:linux_kernel:6.11:rc7::::::

History

No history.

Information

Published : 2024-09-27 13:15

Updated : 2024-10-17 14:15

NVD link : CVE-2024-46859

Mitre link : CVE-2024-46859

CVE.ORG link : CVE-2024-46859

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-129

Improper Validation of Array Index

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So it only\nsupports the AC+DC brightness entries and mute.\n\nCheck that the SINF array has a minimum size which covers all AC+DC\nbrightness entries and refuse to load if the SINF array is smaller.\n\nFor higher SINF indexes hide the sysfs attributes when the SINF array\ndoes not contain an entry for that attribute, avoiding show()/store()\naccessing the array out of bounds and add bounds checking to the probe()\nand resume() code accessing these."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: plataforma/x86: panasonic-laptop: Arreglar accesos fuera de los l\u00edmites a la matriz SINF El c\u00f3digo de la computadora port\u00e1til Panasonic en varios lugares usa la matriz SINF con valores de \u00edndice de 0 - SINF_CUR_BRIGHT(0x0d) sin verificar que la matriz SINF sea lo suficientemente grande. No todas las computadoras port\u00e1tiles Panasonic tienen esta cantidad de entradas de matriz SINF, por ejemplo, el modelo Toughbook CF-18 solo tiene 10 entradas de matriz SINF. Por lo tanto, solo admite las entradas de brillo AC+DC y silencio. Verifique que la matriz SINF tenga un tama\u00f1o m\u00ednimo que cubra todas las entradas de brillo AC+DC y reh\u00fase a cargar si la matriz SINF es m\u00e1s peque\u00f1a. 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