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Review reviewHigh

CVE-2025-68746

Linux

In the Linux kernel, the following vulnerability has been resolved: spi: tegra210-quad: Fix timeout handling When the CPU that the QSPI interrupt handler runs on (typically CPU 0) is excessively busy, it can lead to rare cases of the IRQ thread not running before the transfer timeout is reached. While handling the timeouts, any pending transfers are cleaned up and the message that they correspond to is marked as failed, which leaves the curr_xfer field pointing at stale memory. To avoid this, clear curr_xfer to NULL upon timeout and check for this condition when the IRQ thread is finally ru...

CVSS
7.8
EPSS
0.13%
2.59% percentile
CISA KEV
Not listed
Published
2025.12.24
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.13%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: spi: tegra210-quad: Fix timeout handling When the CPU that the QSPI interrupt handler runs on (typically CPU 0) is excessively busy, it can lead to rare cases of the IRQ thread not running before the transfer timeout is reached. While handling the timeouts, any pending transfers are cleaned up and the message that they correspond to is marked as failed, which leaves the curr_xfer field pointing at stale memory. To avoid this, clear curr_xfer to NULL upon timeout and check for this condition when the IRQ thread is finally ru...

Affected product and versions

Product
Linux
Affected versions
>= 921fc1838fb036f690b8ba52e6a6d3644b475cbb < 88db8bb7ed1bb474618acdf05ebd4f0758d244e2, >= 921fc1838fb036f690b8ba52e6a6d3644b475cbb < 83309dd551cfd60a5a1a98d9cab19f435b44d46d, >= 921fc1838fb036f690b8ba52e6a6d3644b475cbb < c934e40246da2c5726d14e94719c514e30840df8, >= 921fc1838fb036f690b8ba52e6a6d3644b475cbb < 551060efb156c50fe33799038ba8145418cfdeef, >= 921fc1838fb036f690b8ba52e6a6d3644b475cbb < bb0c58be84f907285af45657c1d4847b960a12bf, >= 921fc1838fb036f690b8ba52e6a6d3644b475cbb < 01bbf25c767219b14c3235bfa85906b8d2cb8fbc, >= 921fc1838fb036f690b8ba52e6a6d3644b475cbb < b4e002d8a7cee3b1d70efad0e222567f92a73000, >= 5.12
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Not available