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CVE-2022-49685

7.8 · HIGH

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.

Published Feb 26, 2025CWE-416EPSS 0.28%

Overview

CVE-2022-49685 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical 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

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

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/31ff3309b47d98313c61b8301bf595820cc3cc33Refgit.kernel.org/stable/c/4687c3f955240ca2a576bdc3f742d4d915b6272dRefgit.kernel.org/stable/c/4ef1e521be610b720daeb7cf899fedc7db0274c4Refgit.kernel.org/stable/c/5e39397d60dacc7f5d81d442c1c958eaaaf31128Refgit.kernel.org/stable/c/78601726d4a59a291acc5a52da1d3a0a6831e4e8Refgit.kernel.org/stable/c/b07a30a774b3c3e584a68dc91779c68ea2da4813Refgit.kernel.org/stable/c/d6111e7bdb8ec27eb43d01c4cd4ff1620a75f7f2Refgit.kernel.org/stable/c/fd5d8fb298a2866c337da635c79d63c3afabcaf7

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49685?

CVE-2022-49685 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2022-49685?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-49685?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-49685?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49685 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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