CVE-2026-46192

In the Linux kernel, the following vulnerability has been resolved: spi: microchip-core-qspi: don't attempt to transmit during emulated read-only dual/quad operations The core will deal with reads by creating clock cycles itself, there's no need to generate clock cycles by transmitting garbage data at the driver level. Further, transmitting garbage data just bricks the transfer since QSPI doesn't have a dedicated master-out line like MOSI in regular SPI. I'm not entirely sure if the transfer is bricked because of the garbage data being transmitted on the bus or because the core loses track of whether it is supposed to be sending or receiving data.

Package Linux Kernel
Published 2026-05-28
Last modified 2026-05-28
Patch available
Yes

Affected versions

Linux kernel versions 6.17 and later are affected. Fixed in 6.18.30, 7.0.7, 7.1-rc3 and their respective stable series.

Affected from
≥ 6.17
Fixed in
✓ 6.18.30 6.18.x ✓ 7.0.7 7.0.x ✓ 7.1-rc3

References

The following references provide additional information about CVE-2026-46192 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2026-46192?

    CVE-2026-46192 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.17 onward and has been patched in 6.18.30, 7.0.7 and 7.1-rc3. CVE-2026-46192 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-46192?

    Yes — CVE-2026-46192 has been patched. Fixed versions include 6.18.30, 7.0.7 and 7.1-rc3. If you are running Linux kernel 6.17 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-46192 actively exploited?

    No — CVE-2026-46192 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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