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.]

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

No data.

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/4bb1188e2b1ed98fa2b618cc0628ccba63c6c80f cve-icon cve-icon
https://git.kernel.org/stable/c/5e14b04c8459afbeea1eeb74e81af86d7b196a4d cve-icon cve-icon
https://git.kernel.org/stable/c/8992141cb88f1d99fd11580f4423634700a99240 cve-icon cve-icon
https://git.kernel.org/stable/c/8f9357313cdcadb0a311b44c29d4eaccc7fa632f cve-icon cve-icon
https://git.kernel.org/stable/c/c4ced9fd10073adc854919976b88ad6004271119 cve-icon cve-icon
https://git.kernel.org/stable/c/ca829e05d3d4f728810cc5e4b468d9ebc7745eb3 cve-icon cve-icon
https://git.kernel.org/stable/c/dac28dff90849af4200b8269fcdc84cdc12fa46c cve-icon cve-icon
https://git.kernel.org/stable/c/e3c9e9452a8ea12d335b1e59b2c72e1b99c699b8 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025061832-CVE-2022-50012-0c32@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-50012 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-50012 cve-icon
History

Wed, 02 Jul 2025 02:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
Metrics cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

 cvssV3_1

{'score': 4.1, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low

Fri, 20 Jun 2025 02:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Wed, 18 Jun 2025 11:15:00 +0000

Type Values Removed Values Added
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.]
Title powerpc/64: Init jump labels before parse_early_param()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-06-18T11:01:16.857Z

Updated: 2025-06-18T11:01:16.857Z

Reserved: 2025-06-18T10:57:27.388Z

Link: CVE-2022-50012

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-06-18T11:15:29.213

Modified: 2025-06-18T13:46:52.973

Link: CVE-2022-50012

cve-icon Redhat

Severity : Low

Publid Date: 2025-06-18T00:00:00Z

Links: CVE-2022-50012 - Bugzilla