CVE-2024-26705

MediumCVSS 5.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-862

Affected software

VendorProductVersions
LinuxLinux>= e5ef93d02d6c9cc3a14e7348481c9e41a528caa1, < 54944f45470af5965fb9c28cf962ec30f38a8f5b; >= e5ef93d02d6c9cc3a14e7348481c9e41a528caa1, < aa52be55276614d33f22fbe7da36c40d6432d10b; >= e5ef93d02d6c9cc3a14e7348481c9e41a528caa1, < 913b9d443a0180cf0de3548f1ab3149378998486
LinuxLinux6.6

References

Timeline

Published
Apr 3, 2024
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2024-26705: Medium severity, CVSS 5.5 | Vulnix