CVE-2022-49685
Linux IIO Trigger Use-After-Free Vulnerability
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 ==================================================================
INFO
Published Date :
Feb. 26, 2025, 7:01 a.m.
Last Modified :
March 24, 2025, 7:27 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-49685.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-49685 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49685 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 24, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.202 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.127 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.51 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.7 up to (excluding) 4.9.321 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.286 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.250 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.18.8 Added Reference Type kernel.org: https://git.kernel.org/stable/c/31ff3309b47d98313c61b8301bf595820cc3cc33 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4687c3f955240ca2a576bdc3f742d4d915b6272d Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4ef1e521be610b720daeb7cf899fedc7db0274c4 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/5e39397d60dacc7f5d81d442c1c958eaaaf31128 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/78601726d4a59a291acc5a52da1d3a0a6831e4e8 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/b07a30a774b3c3e584a68dc91779c68ea2da4813 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d6111e7bdb8ec27eb43d01c4cd4ff1620a75f7f2 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/fd5d8fb298a2866c337da635c79d63c3afabcaf7 Types: Patch -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Feb. 27, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-416 -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 26, 2025
Action Type Old Value New Value Added 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 ================================================================== Added Reference https://git.kernel.org/stable/c/31ff3309b47d98313c61b8301bf595820cc3cc33 Added Reference https://git.kernel.org/stable/c/4687c3f955240ca2a576bdc3f742d4d915b6272d Added Reference https://git.kernel.org/stable/c/4ef1e521be610b720daeb7cf899fedc7db0274c4 Added Reference https://git.kernel.org/stable/c/5e39397d60dacc7f5d81d442c1c958eaaaf31128 Added Reference https://git.kernel.org/stable/c/78601726d4a59a291acc5a52da1d3a0a6831e4e8 Added Reference https://git.kernel.org/stable/c/b07a30a774b3c3e584a68dc91779c68ea2da4813 Added Reference https://git.kernel.org/stable/c/d6111e7bdb8ec27eb43d01c4cd4ff1620a75f7f2 Added Reference https://git.kernel.org/stable/c/fd5d8fb298a2866c337da635c79d63c3afabcaf7
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49685 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-49685
weaknesses.