CVE-2024-26705

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-26705
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.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/54944f45470af5965fb9c28cf962ec30f38a8f5b Patch
https://git.kernel.org/stable/c/913b9d443a0180cf0de3548f1ab3149378998486 Patch
https://git.kernel.org/stable/c/aa52be55276614d33f22fbe7da36c40d6432d10b Patch
https://git.kernel.org/stable/c/54944f45470af5965fb9c28cf962ec30f38a8f5b Patch
https://git.kernel.org/stable/c/913b9d443a0180cf0de3548f1ab3149378998486 Patch
https://git.kernel.org/stable/c/aa52be55276614d33f22fbe7da36c40d6432d10b 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:6.8:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*
History

17 Mar 2025, 15:36

Type Values Removed Values Added
First Time Linux linux Kernel
Linux
CWE CWE-862
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/54944f45470af5965fb9c28cf962ec30f38a8f5b - () https://git.kernel.org/stable/c/54944f45470af5965fb9c28cf962ec30f38a8f5b - Patch
References () https://git.kernel.org/stable/c/913b9d443a0180cf0de3548f1ab3149378998486 - () https://git.kernel.org/stable/c/913b9d443a0180cf0de3548f1ab3149378998486 - Patch
References () https://git.kernel.org/stable/c/aa52be55276614d33f22fbe7da36c40d6432d10b - () https://git.kernel.org/stable/c/aa52be55276614d33f22fbe7da36c40d6432d10b - Patch
CPE cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*

21 Nov 2024, 09:02

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: parisc: BTLB: soluciona el problema al configurar BTLB al iniciar la CPU. Al usar hotplug y activar una CPU de 32 bits, solicite al firmware la información de BTLB para configurar la estática ( bloque) Entradas TLB. Para eso se necesita acceso de escritura a la estructura estática btlb_info, pero como está marcada como __ro_after_init, el kernel falla por defecto y faltan permisos de escritura. Solucione el problema eliminando la anotación __ro_after_init.
References () https://git.kernel.org/stable/c/54944f45470af5965fb9c28cf962ec30f38a8f5b - () https://git.kernel.org/stable/c/54944f45470af5965fb9c28cf962ec30f38a8f5b -
References () https://git.kernel.org/stable/c/913b9d443a0180cf0de3548f1ab3149378998486 - () https://git.kernel.org/stable/c/913b9d443a0180cf0de3548f1ab3149378998486 -
References () https://git.kernel.org/stable/c/aa52be55276614d33f22fbe7da36c40d6432d10b - () https://git.kernel.org/stable/c/aa52be55276614d33f22fbe7da36c40d6432d10b -

03 Apr 2024, 15:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-04-03 15:15

Updated : 2025-03-17 15:36

NVD link : CVE-2024-26705

Mitre link : CVE-2024-26705

CVE.ORG link : CVE-2024-26705

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-862

Missing Authorization