CVE-2024-46774

In the Linux kernel, the following vulnerability has been resolved: powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas() Smatch warns: arch/powerpc/kernel/rtas.c:1932 __do_sys_rtas() warn: potential spectre issue 'args.args' [r] (local cap) The 'nargs' and 'nret' locals come directly from a user-supplied buffer and are used as indexes into a small stack-based array and as inputs to copy_to_user() after they are subject to bounds checks. Use array_index_nospec() after the bounds checks to clamp these values for speculative execution.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/0974d03eb479384466d828d65637814bee6b26d7	Patch
https://git.kernel.org/stable/c/1f1feff02e9da0dd0cdb195c428c42b5f9b6c771
https://git.kernel.org/stable/c/68d8156480940b79227d58865ec5d2947b9384a8	Patch
https://git.kernel.org/stable/c/a262c2dc833f2fe1bd5c53a4d899e7077d3b1da9
https://git.kernel.org/stable/c/b137af795399d8b657bad1646c18561530f35ed1
https://git.kernel.org/stable/c/d2834ff1d9641a8695a09ea79cd901c7b6d4d05f
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

03 Nov 2025, 20:16

Type	Values Removed	Values Added
References		() https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html -

02 May 2025, 07:15

Type	Values Removed	Values Added
References		() https://git.kernel.org/stable/c/a262c2dc833f2fe1bd5c53a4d899e7077d3b1da9 - () https://git.kernel.org/stable/c/d2834ff1d9641a8695a09ea79cd901c7b6d4d05f -

25 Apr 2025, 11:15

Type	Values Removed	Values Added
References		() https://git.kernel.org/stable/c/1f1feff02e9da0dd0cdb195c428c42b5f9b6c771 - () https://git.kernel.org/stable/c/b137af795399d8b657bad1646c18561530f35ed1 -

Information

Published : 2024-09-18 08:15

Updated : 2025-11-03 20:16

NVD link : CVE-2024-46774

Mitre link : CVE-2024-46774

CVE.ORG link : CVE-2024-46774

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-787

Out-of-bounds Write

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