CVE-2022-50012
Full vulnerability record from the local CVENow database.
Description
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.]
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-06-18 11:15:29.213000
Last modified
2026-11-05 20:17:20.597000
View original CVE JSON
{
"id": "CVE-2022-50012",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-06-18T11:15:29.213",
"lastModified": "2026-11-05T20:17:20.597",
"vulnStatus": "Modified",
"cveTags": [],
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/64: Init jump labels before parse_early_param()\n\nOn 64-bit, calling jump_label_init() in setup_feature_keys() is too\nlate because static keys may be used in subroutines of\nparse_early_param() which is again subroutine of early_init_devtree().\n\nFor example booting with \"threadirqs\":\n\n static_key_enable_cpuslocked(): static key '0xc000000002953260' used before call to jump_label_init()\n WARNING: CPU: 0 PID: 0 at kernel/jump_label.c:166 static_key_enable_cpuslocked+0xfc/0x120\n ...\n NIP static_key_enable_cpuslocked+0xfc/0x120\n LR static_key_enable_cpuslocked+0xf8/0x120\n Call Trace:\n static_key_enable_cpuslocked+0xf8/0x120 (unreliable)\n static_key_enable+0x30/0x50\n setup_forced_irqthreads+0x28/0x40\n do_early_param+0xa0/0x108\n parse_args+0x290/0x4e0\n parse_early_options+0x48/0x5c\n parse_early_param+0x58/0x84\n early_init_devtree+0xd4/0x518\n early_setup+0xb4/0x214\n\nSo call jump_label_init() just before parse_early_param() in\nearly_init_devtree().\n\n[mpe: Add call trace to change log and minor wording edits.]"
},
{
"lang": "es",
"value": "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]."
}
],
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"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
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"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-11-05T19:52:59.950888Z",
"id": "CVE-2022-50012",
"options": [
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{
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"role": "CISA Coordinator",
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"weaknesses": [
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"source": "[email protected]",
"type": "Primary",
"description": [
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"value": "NVD-CWE-noinfo"
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