CVE-2022-50012

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-50012
In the Linux kernel, the following vulnerability has been resolved: powerpc/64: Init jump labels before parse_early_param() On 64-bit, calling jump_label_init() in setup_feature_keys() is too late because static keys may be used in subroutines of parse_early_param() which is again subroutine of early_init_devtree(). For example booting with "threadirqs": static_key_enable_cpuslocked(): static key '0xc000000002953260' used before call to jump_label_init() WARNING: CPU: 0 PID: 0 at kernel/jump_label.c:166 static_key_enable_cpuslocked+0xfc/0x120 ... NIP static_key_enable_cpuslocked+0xfc/0x120 LR static_key_enable_cpuslocked+0xf8/0x120 Call Trace: static_key_enable_cpuslocked+0xf8/0x120 (unreliable) static_key_enable+0x30/0x50 setup_forced_irqthreads+0x28/0x40 do_early_param+0xa0/0x108 parse_args+0x290/0x4e0 parse_early_options+0x48/0x5c parse_early_param+0x58/0x84 early_init_devtree+0xd4/0x518 early_setup+0xb4/0x214 So call jump_label_init() just before parse_early_param() in early_init_devtree(). [mpe: Add call trace to change log and minor wording edits.]

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/4bb1188e2b1ed98fa2b618cc0628ccba63c6c80f Patch
https://git.kernel.org/stable/c/5e14b04c8459afbeea1eeb74e81af86d7b196a4d Patch
https://git.kernel.org/stable/c/8992141cb88f1d99fd11580f4423634700a99240 Patch
https://git.kernel.org/stable/c/8f9357313cdcadb0a311b44c29d4eaccc7fa632f Patch
https://git.kernel.org/stable/c/c4ced9fd10073adc854919976b88ad6004271119 Patch
https://git.kernel.org/stable/c/ca829e05d3d4f728810cc5e4b468d9ebc7745eb3 Patch
https://git.kernel.org/stable/c/dac28dff90849af4200b8269fcdc84cdc12fa46c Patch
https://git.kernel.org/stable/c/e3c9e9452a8ea12d335b1e59b2c72e1b99c699b8 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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

14 Nov 2025, 17:00

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: powerpc/64: Inicializar etiquetas de salto antes de parse_early_param() En 64 bits, llamar a jump_label_init() en setup_feature_keys() es demasiado tarde porque las claves estáticas se pueden usar en subrutinas de parse_early_param(), que a su vez es una subrutina de early_init_devtree(). Por ejemplo, al arrancar con "threadirqs": static_key_enable_cpuslocked(): clave estática '0xc000000002953260' usada antes de llamar a jump_label_init() ADVERTENCIA: CPU: 0 PID: 0 en kernel/jump_label.c:166 static_key_enable_cpuslocked+0xfc/0x120 ... NIP static_key_enable_cpuslocked+0xfc/0x120 LR static_key_enable_cpuslocked+0xf8/0x120 Rastreo de llamadas: static_key_enable_cpuslocked+0xf8/0x120 (no confiable) static_key_enable+0x30/0x50 setup_forced_irqthreads+0x28/0x40 do_early_param+0xa0/0x108 parse_args+0x290/0x4e0 parse_early_options+0x48/0x5c parse_early_param+0x58/0x84 early_init_devtree+0xd4/0x518 early_setup+0xb4/0x214 Por lo tanto, llame a jump_label_init() justo antes de parse_early_param() en early_init_devtree(). [mpe: Agregar seguimiento de llamadas al registro de cambios y ediciones menores de redacción].
References () https://git.kernel.org/stable/c/4bb1188e2b1ed98fa2b618cc0628ccba63c6c80f - () https://git.kernel.org/stable/c/4bb1188e2b1ed98fa2b618cc0628ccba63c6c80f - Patch
References () https://git.kernel.org/stable/c/5e14b04c8459afbeea1eeb74e81af86d7b196a4d - () https://git.kernel.org/stable/c/5e14b04c8459afbeea1eeb74e81af86d7b196a4d - Patch
References () https://git.kernel.org/stable/c/8992141cb88f1d99fd11580f4423634700a99240 - () https://git.kernel.org/stable/c/8992141cb88f1d99fd11580f4423634700a99240 - Patch
References () https://git.kernel.org/stable/c/8f9357313cdcadb0a311b44c29d4eaccc7fa632f - () https://git.kernel.org/stable/c/8f9357313cdcadb0a311b44c29d4eaccc7fa632f - Patch
References () https://git.kernel.org/stable/c/c4ced9fd10073adc854919976b88ad6004271119 - () https://git.kernel.org/stable/c/c4ced9fd10073adc854919976b88ad6004271119 - Patch
References () https://git.kernel.org/stable/c/ca829e05d3d4f728810cc5e4b468d9ebc7745eb3 - () https://git.kernel.org/stable/c/ca829e05d3d4f728810cc5e4b468d9ebc7745eb3 - Patch
References () https://git.kernel.org/stable/c/dac28dff90849af4200b8269fcdc84cdc12fa46c - () https://git.kernel.org/stable/c/dac28dff90849af4200b8269fcdc84cdc12fa46c - Patch
References () https://git.kernel.org/stable/c/e3c9e9452a8ea12d335b1e59b2c72e1b99c699b8 - () https://git.kernel.org/stable/c/e3c9e9452a8ea12d335b1e59b2c72e1b99c699b8 - Patch
First Time Linux
Linux linux Kernel
CWE NVD-CWE-noinfo
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5

18 Jun 2025, 11:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-06-18 11:15

Updated : 2025-11-14 17:00

NVD link : CVE-2022-50012

Mitre link : CVE-2022-50012

CVE.ORG link : CVE-2022-50012

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo