CVE-2025-71199
In the Linux kernel, the following vulnerability has been resolved: iio: adc: at91-sama5d2_adc: Fix potential use-after-free in sama5d2_adc driver at91_adc_interrupt can call at91_adc_touch_data_handler function to start the work by schedule_work(&st->touch_st.workq). If we remove the module which will call at91_adc_remove to make cleanup, it will free indio_dev through iio_device_unregister but quite a bit later. While the work mentioned above will be used. The sequence of operations that may lead to a UAF bug is as follows: CPU0 CPU1 | at91_adc_workq_handler at91_adc_remove | iio_device_unregister(indio_dev) | //free indio_dev a bit later | | iio_push_to_buffers(indio_dev) | //use indio_dev Fix it by ensuring that the work is canceled before proceeding with the cleanup in at91_adc_remove.
Affected versions
Linux kernel versions
4.19
and later are affected. Fixed in
5.10.249,
5.15.199,
6.1.162,
6.6.122,
6.12.68,
6.18.8,
6.19
and their respective stable series.
References
The following references provide additional information about CVE-2025-71199 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/4c83dd62595ee7b7c9298a4d19a256b6647e7240
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PatchKernel patch commithttps://git.kernel.org/stable/c/919d176b05776c7ede79c36744c823a07d631617
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PatchKernel patch commithttps://git.kernel.org/stable/c/9795fe80976f8c31cafda7d44edfc0f532d1f7c4
Frequently asked questions
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What is CVE-2025-71199?
CVE-2025-71199 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.19 onward and has been patched in 5.10.249, 5.15.199, 6.1.162 and others. CVE-2025-71199 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2025-71199?
Yes — CVE-2025-71199 has been patched. Fixed versions include 5.10.249, 5.15.199, 6.1.162 and others. If you are running Linux kernel 4.19 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-71199 actively exploited?
No — CVE-2025-71199 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.