CVE-2022-49685

In the Linux kernel, the following vulnerability has been resolved:

iio: trigger: sysfs: fix use-after-free on remove

Ensure that the irq_work has completed before the trigger is freed.

================================================================== BUG: KASAN: use-after-free in irqworkrun_list Read of size 8 at addr 0000000064702248 by task python3/25

Call Trace: irqworkrunlist irqworktick updateprocesstimes tickschedhandle tickschedtimer _hrtimerrunqueues hrtimer_interrupt

Allocated by task 25: kmemcachealloctrace iiosysfstrigadd devattrstore sysfskfwrite kernfsfopwriteiter newsyncwrite vfswrite ksyswrite syswrite

Freed by task 25: kfree iiosysfstrigremove devattrstore sysfskfwrite kernfsfopwriteiter newsyncwrite vfswrite ksyswrite sys_write

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