CVE-2024-26705

MEDIUM

Linux Kernel 6.6-6.6.17, 6.7-6.7.5, 6.8 - Missing Authorization via BTLB Setup

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: parisc: BTLB: Fix crash when setting up BTLB at CPU bringup When using hotplug and bringing up a 32-bit CPU, ask the firmware about the BTLB information to set up the static (block) TLB entries. For that write access to the static btlb_info struct is needed, but since it is marked __ro_after_init the kernel segfaults with missing write permissions. Fix the crash by dropping the __ro_after_init annotation.

References (3)

Core 3

Core References

Patch

https://git.kernel.org/stable/c/54944f45470af5965fb9c28cf962ec30f38a8f5b

Patch

https://git.kernel.org/stable/c/aa52be55276614d33f22fbe7da36c40d6432d10b

Patch

https://git.kernel.org/stable/c/913b9d443a0180cf0de3548f1ab3149378998486

Scores

CVSS v3 5.5

EPSS 0.0019

EPSS Percentile 9.3%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-862

Status published

Products (12)

linux/Kernel 6.6.0 - 6.6.18linux

linux/Kernel 6.7.0 - 6.7.6linux

Linux/Linux < 6.6

Linux/Linux 6.6

Linux/Linux 6.6.18 - 6.6.*

Linux/Linux 6.7.6 - 6.7.*

Linux/Linux 6.8

Linux/Linux e5ef93d02d6c9cc3a14e7348481c9e41a528caa1 - 54944f45470af5965fb9c28cf962ec30f38a8f5b

Linux/Linux e5ef93d02d6c9cc3a14e7348481c9e41a528caa1 - 913b9d443a0180cf0de3548f1ab3149378998486

Linux/Linux e5ef93d02d6c9cc3a14e7348481c9e41a528caa1 - aa52be55276614d33f22fbe7da36c40d6432d10b

... and 2 more

Published Apr 03, 2024

Tracked Since Feb 18, 2026