Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: irqchip/imx-irqsteer: Handle runtime power management correctly The power domain is automatically activated from clk_prepare(). However, on certain platforms like i.MX8QM and i.MX8QXP, the power-on handling invokes sleeping functions, which triggers the 'scheduling while atomic' bug in the context switch path during device probing: BUG: scheduling while atomic: kworker/u13:1/48/0x00000002 Call trace: __schedule_bug+0x54/0x6c __schedule+0x7f0/0xa94 schedule+0x5c/0xc4 schedule_preempt_disabled+0x24/0x40 __mutex_lock.constprop.0+0x2c0/0x540 __mutex_lock_slowpath+0x14/0x20 mutex_lock+0x48/0x54 clk_prepare_lock+0x44/0xa0 clk_prepare+0x20/0x44 imx_irqsteer_resume+0x28/0xe0 pm_generic_runtime_resume+0x2c/0x44 __genpd_runtime_resume+0x30/0x80 genpd_runtime_resume+0xc8/0x2c0 __rpm_callback+0x48/0x1d8 rpm_callback+0x6c/0x78 rpm_resume+0x490/0x6b4 __pm_runtime_resume+0x50/0x94 irq_chip_pm_get+0x2c/0xa0 __irq_do_set_handler+0x178/0x24c irq_set_chained_handler_and_data+0x60/0xa4 mxc_gpio_probe+0x160/0x4b0 Cure this by implementing the irq_bus_lock/sync_unlock() interrupt chip callbacks and handle power management in them as they are invoked from non-atomic context. [ tglx: Rewrote change log, added Fixes tag ]
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 0136afa08967f6e160b9b4e85a7a70e4180a8333 before a590e8dea3df2639921f874d763be961dd74e8f9; affected 0136afa08967f6e160b9b4e85a7a70e4180a8333 before 3a2884a44e5cda192df1b28e9925661f79f599a1; affected 0136afa08967f6e160b9b4e85a7a70e4180a8333 before fa1803401e1c360efe6342fb41d161cc51748a11; affected 0136afa08967f6e160b9b4e85a7a70e4180a8333 before 58c56735facb225a5c46fa4b8bbbe7f31d1cb894; affected 0136afa08967f6e160b9b4e85a7a70e4180a8333 before 21bd3f9e7f924cd2fc892a484e7a50c7e1847565; affected 0136afa08967f6e160b9b4e85a7a70e4180a8333 before f8ae38f1dfe652779c7c613facbc257cec00ac44; affected 0136afa08967f6e160b9b4e85a7a70e4180a8333 before 33b1c47d1fc0b5f06a393bb915db85baacba18ea |
| Linux / Linux | affected 5.0; unaffected 0 before 5.0; unaffected 5.4.282 through 5.4.*; unaffected 5.10.224 through 5.10.*; unaffected 5.15.165 through 5.15.*; unaffected 6.1.103 through 6.1.*; unaffected 6.6.44 through 6.6.*; unaffected 6.10.3 through 6.10.*; unaffected 6.11 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/a590e8dea3df2639921f874d763be961dd74e8f9
- https://git.kernel.org/stable/c/3a2884a44e5cda192df1b28e9925661f79f599a1
- https://git.kernel.org/stable/c/fa1803401e1c360efe6342fb41d161cc51748a11
- https://git.kernel.org/stable/c/58c56735facb225a5c46fa4b8bbbe7f31d1cb894
- https://git.kernel.org/stable/c/21bd3f9e7f924cd2fc892a484e7a50c7e1847565
- https://git.kernel.org/stable/c/f8ae38f1dfe652779c7c613facbc257cec00ac44
- https://git.kernel.org/stable/c/33b1c47d1fc0b5f06a393bb915db85baacba18ea
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.