CVE-2025-68746 (GCVE-0-2025-68746)

Vulnerability from cvelistv5 – Published: 2025-12-24 12:09 – Updated: 2026-08-05 12:11
VLAI
Title
spi: tegra210-quad: Fix timeout handling
Summary
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 run. While at it, also make sure to clear interrupts on failure so that new interrupts can be run. A better, more involved, fix would move the interrupt clearing into a hard IRQ handler. Ideally we would also want to signal that the IRQ thread no longer needs to be run after the timeout is hit to avoid the extra check for a valid transfer.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 921fc1838fb036f690b8ba52e6a6d3644b475cbb , < 88db8bb7ed1bb474618acdf05ebd4f0758d244e2 (git)
Affected: 921fc1838fb036f690b8ba52e6a6d3644b475cbb , < 83309dd551cfd60a5a1a98d9cab19f435b44d46d (git)
Affected: 921fc1838fb036f690b8ba52e6a6d3644b475cbb , < c934e40246da2c5726d14e94719c514e30840df8 (git)
Affected: 921fc1838fb036f690b8ba52e6a6d3644b475cbb , < 551060efb156c50fe33799038ba8145418cfdeef (git)
Affected: 921fc1838fb036f690b8ba52e6a6d3644b475cbb , < bb0c58be84f907285af45657c1d4847b960a12bf (git)
Affected: 921fc1838fb036f690b8ba52e6a6d3644b475cbb , < 01bbf25c767219b14c3235bfa85906b8d2cb8fbc (git)
Affected: 921fc1838fb036f690b8ba52e6a6d3644b475cbb , < b4e002d8a7cee3b1d70efad0e222567f92a73000 (git)
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Linux Linux Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 5.15.198 , ≤ 5.15.* (semver)
Unaffected: 6.1.160 , ≤ 6.1.* (semver)
Unaffected: 6.6.120 , ≤ 6.6.* (semver)
Unaffected: 6.12.63 , ≤ 6.12.* (semver)
Unaffected: 6.17.13 , ≤ 6.17.* (semver)
Unaffected: 6.18.2 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: tegra210-quad: Fix timeout handling\n\nWhen the CPU that the QSPI interrupt handler runs on (typically CPU 0)\nis excessively busy, it can lead to rare cases of the IRQ thread not\nrunning before the transfer timeout is reached.\n\nWhile handling the timeouts, any pending transfers are cleaned up and\nthe message that they correspond to is marked as failed, which leaves\nthe curr_xfer field pointing at stale memory.\n\nTo avoid this, clear curr_xfer to NULL upon timeout and check for this\ncondition when the IRQ thread is finally run.\n\nWhile at it, also make sure to clear interrupts on failure so that new\ninterrupts can be run.\n\nA better, more involved, fix would move the interrupt clearing into a\nhard IRQ handler. Ideally we would also want to signal that the IRQ\nthread no longer needs to be run after the timeout is hit to avoid the\nextra check for a valid transfer."
        }
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            "baseSeverity": "HIGH",
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            "version": "3.1"
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            }
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68746",
    "datePublished": "2025-12-24T12:09:42.213Z",
    "dateReserved": "2025-12-24T10:30:51.031Z",
    "dateUpdated": "2026-08-05T12:11:15.698Z",
    "state": "PUBLISHED"
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      "version": "5"
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Ideally we would also want to signal that the IRQ\\nthread no longer needs to be run after the timeout is hit to avoid the\\nextra check for a valid transfer.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/spi/spi-tegra210-quad.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"921fc1838fb036f690b8ba52e6a6d3644b475cbb\",\"lessThan\":\"88db8bb7ed1bb474618acdf05ebd4f0758d244e2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"921fc1838fb036f690b8ba52e6a6d3644b475cbb\",\"lessThan\":\"83309dd551cfd60a5a1a98d9cab19f435b44d46d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"921fc1838fb036f690b8ba52e6a6d3644b475cbb\",\"lessThan\":\"c934e40246da2c5726d14e94719c514e30840df8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"921fc1838fb036f690b8ba52e6a6d3644b475cbb\",\"lessThan\":\"551060efb156c50fe33799038ba8145418cfdeef\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"921fc1838fb036f690b8ba52e6a6d3644b475cbb\",\"lessThan\":\"bb0c58be84f907285af45657c1d4847b960a12bf\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"921fc1838fb036f690b8ba52e6a6d3644b475cbb\",\"lessThan\":\"01bbf25c767219b14c3235bfa85906b8d2cb8fbc\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"921fc1838fb036f690b8ba52e6a6d3644b475cbb\",\"lessThan\":\"b4e002d8a7cee3b1d70efad0e222567f92a73000\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/spi/spi-tegra210-quad.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.12\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.12\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.198\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.160\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.120\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.63\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.17.13\",\"lessThanOrEqual\":\"6.17.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.2\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.19\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/01bbf25c767219b14c3235bfa85906b8d2cb8fbc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/551060efb156c50fe33799038ba8145418cfdeef\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/83309dd551cfd60a5a1a98d9cab19f435b44d46d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/88db8bb7ed1bb474618acdf05ebd4f0758d244e2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b4e002d8a7cee3b1d70efad0e222567f92a73000\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bb0c58be84f907285af45657c1d4847b960a12bf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c934e40246da2c5726d14e94719c514e30840df8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-07-30T10:07:17+00:00",
      "cve": "CVE-2025-68746",
      "id": "CVE-2025-68746",
      "initial_release_date": "2025-12-24T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: spi: tegra210-quad: Fix timeout handling",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68746.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.