CVE-2026-64498

In the Linux kernel, the following vulnerability has been resolved: iio: buffer: hw-consumer: free scan_mask on buffer release The scan_mask lifetime changed in commit 9a2e1233d38c ("iio: buffer: hw-consumer: remove redundant scan_mask flexible array"). Before that change, the scan mask storage was embedded in struct hw_consumer_buffer, so iio_hw_buf_release() could free the whole allocation with a single kfree(hw_buf). That commit moved the scan mask to a separate bitmap_zalloc() allocation stored in buffer.scan_mask, but left iio_hw_buf_release() unchanged. Free the scan mask in iio_hw_buf_release() before freeing the buffer wrapper.

Package Linux Kernel
Published 2026-07-25
Last modified 2026-07-25
Patch available
Yes

Affected versions

Linux kernel versions 7.1 and later are affected. Fixed in 7.1.4, 7.2-rc1 and their respective stable series.

Affected from
≥ 7.1
Fixed in
✓ 7.1.4 7.1.x ✓ 7.2-rc1

References

2 total

Frequently asked questions

  • What is CVE-2026-64498?

    CVE-2026-64498 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 7.1 onward and has been patched in 7.1.4 and 7.2-rc1. CVE-2026-64498 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-64498?

    Yes. CVE-2026-64498 has been patched. Fixed versions include 7.1.4 and 7.2-rc1. If you are running Linux kernel 7.1 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-64498 actively exploited?

    No. CVE-2026-64498 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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