CVE-2024-56781

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-56781
In the Linux kernel, the following vulnerability has been resolved: powerpc/prom_init: Fixup missing powermac #size-cells On some powermacs `escc` nodes are missing `#size-cells` properties, which is deprecated and now triggers a warning at boot since commit 045b14ca5c36 ("of: WARN on deprecated #address-cells/#size-cells handling"). For example: Missing '#size-cells' in /pci@f2000000/mac-io@c/escc@13000 WARNING: CPU: 0 PID: 0 at drivers/of/base.c:133 of_bus_n_size_cells+0x98/0x108 Hardware name: PowerMac3,1 7400 0xc0209 PowerMac ... Call Trace: of_bus_n_size_cells+0x98/0x108 (unreliable) of_bus_default_count_cells+0x40/0x60 __of_get_address+0xc8/0x21c __of_address_to_resource+0x5c/0x228 pmz_init_port+0x5c/0x2ec pmz_probe.isra.0+0x144/0x1e4 pmz_console_init+0x10/0x48 console_init+0xcc/0x138 start_kernel+0x5c4/0x694 As powermacs boot via prom_init it's possible to add the missing properties to the device tree during boot, avoiding the warning. Note that `escc-legacy` nodes are also missing `#size-cells` properties, but they are skipped by the macio driver, so leave them alone. Depends-on: 045b14ca5c36 ("of: WARN on deprecated #address-cells/#size-cells handling")

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/0b94d838018fb0a824e0cd3149034928c99fb1b7 Patch
https://git.kernel.org/stable/c/296a109fa77110ba5267fe0e90a26005eecc2726 Patch
https://git.kernel.org/stable/c/691284c2cd33ffaa0b35ce53b3286b90621e9dc9 Patch
https://git.kernel.org/stable/c/6d5f0453a2228607333bff0c85238a3cb495d194 Patch
https://git.kernel.org/stable/c/a79a7e3c03ae2a07f68b5f24d5ed549f9799ec89 Patch
https://git.kernel.org/stable/c/cf89c9434af122f28a3552e6f9cc5158c33ce50a Patch
https://git.kernel.org/stable/c/ee68554d2c03e32077f7b984e5289fdb005036d2 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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

09 Jan 2025, 21:21

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: powerpc/prom_init: Reparación de #size-cells faltantes en powermac. En algunos nodos `escc` faltan las propiedades `#size-cells`, lo cual está obsoleto y ahora activa una advertencia en el arranque desde el commit 045b14ca5c36 ("of: WARN on precated #address-cells/#size-cells management"). Por ejemplo: Falta '#size-cells' en /pci@f2000000/mac-io@c/escc@13000 ADVERTENCIA: CPU: 0 PID: 0 en drivers/of/base.c:133 of_bus_n_size_cells+0x98/0x108 Nombre de hardware: PowerMac3,1 7400 0xc0209 PowerMac ... Seguimiento de llamadas: of_bus_n_size_cells+0x98/0x108 (no confiable) of_bus_default_count_cells+0x40/0x60 __of_get_address+0xc8/0x21c __of_address_to_resource+0x5c/0x228 pmz_init_port+0x5c/0x2ec pmz_probe.isra.0+0x144/0x1e4 pmz_console_init+0x10/0x48 console_init+0xcc/0x138 start_kernel+0x5c4/0x694 Como los powermacs arrancan a través de prom_init, es posible agregar las propiedades faltantes al árbol de dispositivos durante el arranque, evitando la advertencia. Tenga en cuenta que a los nodos `escc-legacy` también les faltan las propiedades `#size-cells`, pero el controlador de Macio las omite, así que déjelas como están. Depende de: 045b14ca5c36 ("of: WARN on deprecated #address-cells/#size-cells management")
First Time Linux
Linux linux Kernel
CWE NVD-CWE-noinfo
References () https://git.kernel.org/stable/c/0b94d838018fb0a824e0cd3149034928c99fb1b7 - () https://git.kernel.org/stable/c/0b94d838018fb0a824e0cd3149034928c99fb1b7 - Patch
References () https://git.kernel.org/stable/c/296a109fa77110ba5267fe0e90a26005eecc2726 - () https://git.kernel.org/stable/c/296a109fa77110ba5267fe0e90a26005eecc2726 - Patch
References () https://git.kernel.org/stable/c/691284c2cd33ffaa0b35ce53b3286b90621e9dc9 - () https://git.kernel.org/stable/c/691284c2cd33ffaa0b35ce53b3286b90621e9dc9 - Patch
References () https://git.kernel.org/stable/c/6d5f0453a2228607333bff0c85238a3cb495d194 - () https://git.kernel.org/stable/c/6d5f0453a2228607333bff0c85238a3cb495d194 - Patch
References () https://git.kernel.org/stable/c/a79a7e3c03ae2a07f68b5f24d5ed549f9799ec89 - () https://git.kernel.org/stable/c/a79a7e3c03ae2a07f68b5f24d5ed549f9799ec89 - Patch
References () https://git.kernel.org/stable/c/cf89c9434af122f28a3552e6f9cc5158c33ce50a - () https://git.kernel.org/stable/c/cf89c9434af122f28a3552e6f9cc5158c33ce50a - Patch
References () https://git.kernel.org/stable/c/ee68554d2c03e32077f7b984e5289fdb005036d2 - () https://git.kernel.org/stable/c/ee68554d2c03e32077f7b984e5289fdb005036d2 - Patch
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

08 Jan 2025, 18:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-01-08 18:15

Updated : 2025-01-09 21:21

NVD link : CVE-2024-56781

Mitre link : CVE-2024-56781

CVE.ORG link : CVE-2024-56781

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo