VulnerabilityPublished 4 Feb 2026Updated 13 Oct 2026

CVE-2025-71199: Linux kernel · iio: adc: at91-sama5d2_adc: Fix potential use-after-free in sama5d2_adc driver

Affects Linux kernelSource GCVE Database

Not known to be exploited · fixed in 5.15.0-1105.112~20.04.1 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 17:16 UTC

Severity

Medium

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS: 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 5.15.0-1105.112~20.04.1, 5.15.0-1110.119~20.04.1, 5.15.0-1106.115~20.04.1 +70

Exploitation evidence

Disclosed: evidence found.
CVE published 4 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
Ubuntu 25.10linux`pkg:deb/ubuntu/linux?arch=source&distro=questing`Other threats	Affected 6.14.0-15.15 – 6.17.0-40.40 20 affected builds	Fixed in–
Ubuntu 25.10linux-aws`pkg:deb/ubuntu/linux-aws?arch=source&distro=questing`Other threats	Affected 6.14.0-1005.5 – 6.17.0-1019.19 17 affected builds	Fixed in–
Ubuntu 25.10linux-azure`pkg:deb/ubuntu/linux-azure?arch=source&distro=questing`Other threats	Affected 6.14.0-1004.4 – 6.17.0-1020.20 16 affected builds	Fixed in–
Ubuntu 25.10linux-azure-fde`pkg:deb/ubuntu/linux-azure-fde?arch=source&distro=questing`Other threats	Affected 6.17.0-1003.3 – 6.17.0-1017.17 10 affected builds	Fixed in–
Ubuntu 25.10linux-gcp`pkg:deb/ubuntu/linux-gcp?arch=source&distro=questing`Other threats	Affected 6.14.0-1006.6 – 6.17.0-1020.22 17 affected builds	Fixed in–
Ubuntu 25.10linux-oracle`pkg:deb/ubuntu/linux-oracle?arch=source&distro=questing`Other threats	Affected 6.14.0-1005.5 – 6.17.0-1018.18 16 affected builds	Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available and has been incorporated into updated Linux kernel packages for affected Ubuntu releases. Users should apply the relevant kernel updates and reboot their systems to ensure the vulnerability is remediated. Due to an ABI change in the kernel updates, recompilation and reinstallation of third-party kernel modules may be required. Follow vendor instructions for updating and rebuilding kernel modules as necessary.

Description

A use-after-free vulnerability was identified and fixed in the Linux kernel's at91-sama5d2_adc driver. The flaw occurs when scheduled work referencing a device structure is executed after the device has been freed during module removal, potentially leading to use of freed memory. This issue was resolved by ensuring that scheduled work is canceled before device cleanup proceeds. The vulnerability affects certain Linux kernel versions prior to 5.15.0-1105.112~20.04.1 and related builds. A patch is available and included in updated Linux kernel packages. Users should update and reboot to apply the fix.

Impact

If exploited, this use-after-free vulnerability could lead to system instability or potential privilege escalation by causing kernel memory corruption. However, no known exploits are reported in the wild. The vulnerability affects the Linux kernel on affected versions, potentially compromising system reliability and security if unpatched.

Summary

The Linux kernel's at91-sama5d2_adc driver contained a use-after-free vulnerability (CVE-2025-71199) caused by a race condition between scheduled work execution and device removal. Specifically, the at91_adc_interrupt function schedules work that uses the indio_dev device structure, but during module removal, the device is freed asynchronously after iio_device_unregister is called. This can lead to the scheduled work accessing freed memory, causing a use-after-free condition. The fix involves canceling the scheduled work before proceeding with device cleanup in the at91_adc_remove function. This vulnerability affects multiple Linux kernel versions in the 5.15 series prior to specific patched versions for Ubuntu 20.04 LTS and 22.04 LTS. The vendor has released updated kernel packages that address this and other vulnerabilities.

GCVE source: db.gcve.eu
OSV ID: UBUNTU-CVE-2025-71199
Osv Schema Version: 1.7.0
Ecosystems: Ubuntu:16.04:LTS, Ubuntu:18.04:LTS, Ubuntu:Pro:18.04:LTS, Ubuntu:Pro:20.04:LTS, Ubuntu:20.04:LTS, Ubuntu:Pro:FIPS-updates:20.04:LTS, Ubuntu:Pro:FIPS:20.04:LTS, Ubuntu:22.04:LTS, Ubuntu:Nvidia-BlueField:22.04:LTS, Ubuntu:Pro:FIPS-preview:22.04:LTS, Ubuntu:Pro:FIPS-updates:22.04:LTS, Ubuntu:Pro:Realtime:22.04:LTS, Ubuntu:24.04:LTS, Ubuntu:Nvidia-BlueField:24.04:LTS, Ubuntu:Pro:FIPS-updates:24.04:LTS, Ubuntu:Pro:Realtime:24.04:LTS, Ubuntu:25.10

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 22 Aug 2026, 22:00 UTC

Technical details

References

Community reviews

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