CVE-2026-89977

In the Linux kernel, the following vulnerability has been resolved: accel/ethosu: check MMIO mapping errors in probe devm_platform_ioremap_resource() returns an error pointer when the register resource cannot be mapped. ethosu_probe() stores it and continues until initialization dereferences it through MMIO accessors. Return the mapping error before initializing the device.

Package Linux Kernel
Published 2026-09-16
Last modified 2026-09-16
Patch available
Yes

Affected versions

Linux kernel versions 6.19 and later are affected. Fixed in 7.2.5, 7.3-rc2 and their respective stable series.

Affected from
≥ 6.19
Fixed in
✓ 7.2.5 7.2.x ✓ 7.3-rc2

References

2 total

Frequently asked questions

  • What is CVE-2026-89977?

    CVE-2026-89977 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.19 onward and has been patched in 7.2.5 and 7.3-rc2. CVE-2026-89977 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-89977?

    Yes. CVE-2026-89977 has been patched. Fixed versions include 7.2.5 and 7.3-rc2. If you are running Linux kernel 6.19 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-89977 actively exploited?

    No. CVE-2026-89977 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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