Linus Torvalds 4357f03d66 Power management fixes for 5.15-rc2
- Prevent intel_pstate from avoiding to use HWP, even if instructed
    to do so via the kernel command line, when HWP has been enabled
    already by the platform firmware (Doug Smythies).
 
  - Prevent use-after-free from occurring in the schedutil cpufreq
    governor on exit by fixing a core helper function that attempts
    to access memory associated with a kobject after calling
    kobject_put() on it (James Morse).
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Merge tag 'pm-5.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix two cpufreq issues, one in the intel_pstate driver and one
  in the core.

  Specifics:

   - Prevent intel_pstate from avoiding to use HWP, even if instructed
     to do so via the kernel command line, when HWP has been enabled
     already by the platform firmware (Doug Smythies).

   - Prevent use-after-free from occurring in the schedutil cpufreq
     governor on exit by fixing a core helper function that attempts to
     access memory associated with a kobject after calling kobject_put()
     on it (James Morse)"

* tag 'pm-5.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: schedutil: Destroy mutex before kobject_put() frees the memory
  cpufreq: intel_pstate: Override parameters if HWP forced by BIOS
2021-09-17 12:05:04 -07:00
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2019-07-18 09:49:30 +02:00
2019-07-18 09:49:30 +02:00
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2020-12-15 15:24:52 +01:00