Vulnerability Database

309,469

Total vulnerabilities in the database

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.]

  • Published: Jun 18, 2025
  • Updated: Nov 15, 2025
  • CVE: CVE-2022-50012
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.5
  • AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

No CWE or OWASP classifications available.

Software From Fixed in
linux / linux_kernel - 4.9.326
linux / linux_kernel 4.10 4.14.291
linux / linux_kernel 4.15 4.19.256
linux / linux_kernel 4.20 5.4.211
linux / linux_kernel 5.5 5.10.138
linux / linux_kernel 5.11 5.15.63
linux / linux_kernel 5.16 5.19.4