CVE-2022-49685: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

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

• Linux Linux Kernel: from 3.7, before 4.9.321 (fixed in 4.9.321); from 4.10, before 4.14.286 (fixed in 4.14.286); from 4.15, before 4.19.250 (fixed in 4.19.250); from 4.20, before 5.4.202 (fixed in 5.4.202); from 5.5, before 5.10.127 (fixed in 5.10.127); from 5.11, before 5.15.51 (fixed in 5.15.51); …

Published 2025-02-26. Last modified 2026-06-17.