CVE-2025-21645 (GCVE-0-2025-21645)

Vulnerability from cvelistv5 – Published: 2025-01-19 10:18 – Updated: 2025-11-03 19:35
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd/pmc: Only disable IRQ1 wakeup where i8042 actually enabled it Wakeup for IRQ1 should be disabled only in cases where i8042 had actually enabled it, otherwise "wake_depth" for this IRQ will try to drop below zero and there will be an unpleasant WARN() logged: kernel: atkbd serio0: Disabling IRQ1 wakeup source to avoid platform firmware bug kernel: ------------[ cut here ]------------ kernel: Unbalanced IRQ 1 wake disable kernel: WARNING: CPU: 10 PID: 6431 at kernel/irq/manage.c:920 irq_set_irq_wake+0x147/0x1a0 The PMC driver uses DEFINE_SIMPLE_DEV_PM_OPS() to define its dev_pm_ops which sets amd_pmc_suspend_handler() to the .suspend, .freeze, and .poweroff handlers. i8042_pm_suspend(), however, is only set as the .suspend handler. Fix the issue by call PMC suspend handler only from the same set of dev_pm_ops handlers as i8042_pm_suspend(), which currently means just the .suspend handler. To reproduce this issue try hibernating (S4) the machine after a fresh boot without putting it into s2idle first. [ij: edited the commit message.]
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 72e5a83b7c8401856cc3732150af24e43726717a , < ab47d72b736e78d3c2370b26e0bfc46eb0918391 (git)
Affected: 8e60615e8932167057b363c11a7835da7f007106 , < 5cc621085e2b7a9b1905a98f8e5a86bb4aea2016 (git)
Affected: 8e60615e8932167057b363c11a7835da7f007106 , < b25778c87a6bce40c31e92364f08aa6240309e25 (git)
Affected: 8e60615e8932167057b363c11a7835da7f007106 , < dd410d784402c5775f66faf8b624e85e41c38aaf (git)
Affected: 3fc9dc0340e0b5df8059313537b55f82c1e84e94 (git)
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    Linux Linux Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.1.140 , ≤ 6.1.* (semver)
Unaffected: 6.6.72 , ≤ 6.6.* (semver)
Unaffected: 6.12.10 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
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Sin embargo, i8042_pm_suspend() solo se configura como el controlador .suspend. Solucione el problema llamando al controlador de suspensi\u00f3n PMC solo desde el mismo conjunto de controladores dev_pm_ops que i8042_pm_suspend(), lo que actualmente significa solo el controlador .suspend. Para reproducir este problema, intente hibernar (S4) la m\u00e1quina despu\u00e9s de un arranque nuevo sin ponerla primero en s2idle. 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