CVE-2026-31762
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Interrupt Handler Resource Leak in Linux Kernel IIO Gyro MPU3050

Publication date: 2026-05-01

Last updated on: 2026-05-08

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: iio: gyro: mpu3050: Fix irq resource leak The interrupt handler is setup but only a few lines down if iio_trigger_register() fails the function returns without properly releasing the handler. Add cleanup goto to resolve resource leak. Detected by Smatch: drivers/iio/gyro/mpu3050-core.c:1128 mpu3050_trigger_probe() warn: 'irq' from request_threaded_irq() not released on lines: 1124.
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Meta Information
Published
2026-05-01
Last Modified
2026-05-08
Generated
2026-06-16
AI Q&A
2026-05-01
EPSS Evaluated
2026-06-15
NVD
CVE-2026-31762
EUVD
EUVD-2026-26575
Affected Vendors & Products
Showing 13 associated CPEs
Vendor Product Version / Range
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel From 5.11 (inc) to 5.15.203 (exc)
linux linux_kernel From 6.13 (inc) to 6.18.22 (exc)
linux linux_kernel From 5.16 (inc) to 6.1.168 (exc)
linux linux_kernel From 6.19 (inc) to 6.19.12 (exc)
linux linux_kernel From 6.7 (inc) to 6.12.81 (exc)
linux linux_kernel From 6.2 (inc) to 6.6.134 (exc)
linux linux_kernel From 4.10 (inc) to 5.10.253 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-401 The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
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Executive Summary

This vulnerability is a resource leak in the Linux kernel related to the iio gyro mpu3050 driver. Specifically, when the interrupt handler is set up using request_threaded_irq(), if the subsequent call to iio_trigger_register() fails, the function returns without properly releasing the interrupt handler resource. This leads to an irq resource leak.

The issue was detected by Smatch, a static analysis tool, which flagged that the irq requested was not released on certain lines of the source code. The fix involved adding a cleanup goto to ensure the irq resource is properly released in case of failure.

Impact Analysis

This vulnerability can lead to a resource leak in the Linux kernel's interrupt handling for the mpu3050 gyro driver. Over time, such leaks could cause system instability or degraded performance due to exhausted interrupt resources.

However, since this is a resource leak rather than a direct security exploit like privilege escalation or code execution, the immediate impact on system security may be limited.

Detection Guidance

This vulnerability relates to a resource leak in the Linux kernel driver for the mpu3050 gyro sensor, specifically involving the interrupt handler not being properly released if iio_trigger_register() fails.

Detection would typically require checking the kernel source or logs for signs of irq resource leaks related to the mpu3050 driver. Since this is a kernel driver issue, there are no direct network commands to detect it.

You might inspect kernel logs for warnings or errors related to the mpu3050 gyro driver or irq resource leaks using commands like:

  • dmesg | grep mpu3050
  • journalctl -k | grep irq
  • cat /proc/interrupts | grep mpu3050

However, no specific commands are provided in the available information to detect this vulnerability automatically.

Compliance Impact

The provided information does not include any details about the impact of this vulnerability on compliance with common standards and regulations such as GDPR or HIPAA.

Mitigation Strategies

The vulnerability has been fixed by adding a cleanup goto to properly release the irq resource if iio_trigger_register() fails in the mpu3050 gyro driver.

Immediate mitigation steps include updating your Linux kernel to a version that contains this fix.

If updating is not immediately possible, consider disabling the mpu3050 gyro driver if it is not required on your system to avoid triggering the resource leak.

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