CVE-2022-49685

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

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

==================================================================

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
LinuxLinux>= f38bc926d022ebd67baad6ac7fc22c95fbc6238c, < d6111e7bdb8ec27eb43d01c4cd4ff1620a75f7f2; >= f38bc926d022ebd67baad6ac7fc22c95fbc6238c, < fd5d8fb298a2866c337da635c79d63c3afabcaf7; >= f38bc926d022ebd67baad6ac7fc22c95fbc6238c, < 31ff3309b47d98313c61b8301bf595820cc3cc33; >= f38bc926d022ebd67baad6ac7fc22c95fbc6238c, < 5e39397d60dacc7f5d81d442c1c958eaaaf31128; >= f38bc926d022ebd67baad6ac7fc22c95fbc6238c, < b07a30a774b3c3e584a68dc91779c68ea2da4813; >= f38bc926d022ebd67baad6ac7fc22c95fbc6238c, < 4687c3f955240ca2a576bdc3f742d4d915b6272d; >= f38bc926d022ebd67baad6ac7fc22c95fbc6238c, < 4ef1e521be610b720daeb7cf899fedc7db0274c4; >= f38bc926d022ebd67baad6ac7fc22c95fbc6238c, < 78601726d4a59a291acc5a52da1d3a0a6831e4e8
LinuxLinux3.7

References

Timeline

Published
Feb 26, 2025
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2022-49685: High severity, CVSS 7.8 | Vulnix