CVE-2025-71199

Description

In the Linux kernel, the following vulnerability has been resolved:iio: adc: at91-sama5d2_adc: Fix potential use-after-free in sama5d2_adc driverat91_adc_interrupt can call at91_adc_touch_data_handler functionto start the work by schedule_work(&st->touch_st.workq).If we remove the module which will call at91_adc_remove tomake cleanup, it will free indio_dev through iio_device_unregister butquite a bit later. While the work mentioned above will be used. Thesequence of operations that may lead to a UAF bug is as follows:CPU0 CPU1 | at91_adc_workq_handlerat91_adc_remove |iio_device_unregister(indio_dev) |//free indio_dev a bit later | | iio_push_to_buffers(indio_dev) | //use indio_devFix it by ensuring that the work is canceled before proceeding withthe cleanup in at91_adc_remove.

Risk Information

Base Score

8.6

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C

EPSS Score

Exploitation Probability

0.035

Associated Vulnerability

No records found

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234