IT

Tracker / CVE-2022-49685

CVE-2022-49685

High 7.8

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 irq_work_run_list Read of size 8 at addr 0000000064702248 by task python3/25 Call Trace: irq_work_run_list irq_work_tick update_process_times tick_sched_handle tick_sched_timer __hrtimer_run_queues hrtimer_interrupt Allocated by task 25: kmem_cache_alloc_trace iio_sysfs_trig_add dev_attr_store sysfs_kf_write kernfs_fop_write_iter new_sync_write vfs_write ksys_write sys_write Freed by task 25: kfree iio_sysfs_trig_remove dev_attr_store sysfs_kf_write kernfs_fop_write_iter new_sync_write vfs_write ksys_write sys_write ==================================================================

Affected products and versions

linux linux_kernel
linux linux_kernel · 3.7 → 4.9.321
linux linux_kernel · 4.10 → 4.14.286
linux linux_kernel · 4.15 → 4.19.250
linux linux_kernel · 4.20 → 5.4.202
linux linux_kernel · 5.11 → 5.15.51
linux linux_kernel · 5.16 → 5.18.8
linux linux_kernel · 5.5 → 5.10.127

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References