Description (CNA)
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.]
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 72e5a83b7c8401856cc3732150af24e43726717a before ab47d72b736e78d3c2370b26e0bfc46eb0918391; affected 8e60615e8932167057b363c11a7835da7f007106 before 5cc621085e2b7a9b1905a98f8e5a86bb4aea2016; affected 8e60615e8932167057b363c11a7835da7f007106 before b25778c87a6bce40c31e92364f08aa6240309e25; affected 8e60615e8932167057b363c11a7835da7f007106 before dd410d784402c5775f66faf8b624e85e41c38aaf; affected 3fc9dc0340e0b5df8059313537b55f82c1e84e94; affected 6.1.11 before 6.1.140; affected 5.15.95 before 5.16 |
| Linux / Linux | affected 6.2; unaffected 0 before 6.2; unaffected 6.1.140 through 6.1.*; unaffected 6.6.72 through 6.6.*; unaffected 6.12.10 through 6.12.*; unaffected 6.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/ab47d72b736e78d3c2370b26e0bfc46eb0918391
- https://git.kernel.org/stable/c/5cc621085e2b7a9b1905a98f8e5a86bb4aea2016
- https://git.kernel.org/stable/c/b25778c87a6bce40c31e92364f08aa6240309e25
- https://git.kernel.org/stable/c/dd410d784402c5775f66faf8b624e85e41c38aaf
ADP enrichment
No English description supplied.
No English description supplied.