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Highest advisory severityMedium 1 vendor · 1 advisory

CVE-2026-68176

CVE-2026-68176: 1 tracked advisory record across Red Hat. Compare vendor sources.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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Vendor advisory comparison

Red Hat

1 advisory
  • Advisory severityMedium5.5

    Medium [CVE-2026-68176] Fix mmiotrace possible NULL dereferencing of hiter->dev

    CVE-2026-68176Source published Source updated

    In the Linux kernel, the following vulnerability has been resolved: tracing: Fix mmiotrace possible NULL dereferencing of hiter->dev If the mmio_pipe_open() fails to find a PCI device, the hiter->dev will be assigned to NULL. The mmiotrace read() function dereferences the hiter->dev if hiter exists. Change the test of the read to not only check hiter being NULL, but also the hiter->dev before dereferencing it. The `mmiotrace read()` function then attempts to dereference this null pointer, which can lead to a system crash and result in a denial of service. A local attacker could potentially exploit this to cause system instability. Systems not using mmiotrace are not affected. Red Hat severity: Low — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-476. Affected Red…

    Affected products in this advisory
    • Red Hat Enterprise Linux 10
    • Red Hat Enterprise Linux 6
    • Red Hat Enterprise Linux 7
    • Red Hat Enterprise Linux 8

    3 more entries in the full advisory.

    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    No fixed-version detail extracted. This does not mean no fix exists.
    Mitigation guidance
    No mitigation guidance extracted; consult the source.
    Full advisory and evidenceOpen source bulletin

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