UBUNTU-CVE-2021-46943

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    UBUNTU-CVE-2021-46943

    Published: 27 Feb 2024Last Modified: 9 Sept 2026
    Upstream:
    CVE-2021-46943

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: media: staging/intel-ipu3: Fix set_fmt error handling If there in an error during a set_fmt, do not overwrite the previous sizes with the invalid config. Without this patch, v4l2-compliance ends up allocating 4GiB of RAM and causing the following OOPs [ 38.662975] ipu3-imgu 0000:00:05.0: swiotlb buffer is full (sz: 4096 bytes) [ 38.662980] DMA: Out of SW-IOMMU space for 4096 bytes at device 0000:00:05.0 [ 38.663010] general protection fault: 0000 [#1] PREEMPT SMP

    References: https://ubuntu.com/security/CVE-2021-46943, https://git.kernel.org/linus/ad91849996f9dd79741a961fd03585a683b08356, https://git.kernel.org/stable/c/a03fb1e8a110658215a4cefc3e2ad53279e496a6, https://git.kernel.org/stable/c/c6b81b897f6f9445d57f8d47c4e060ec21556137, https://git.kernel.org/stable/c/34892ea938387d83ffcfb7775ec55f0f80767916, https://git.kernel.org/stable/c/6fb617e37a39db0a3eca4489431359d0bdf3b9bc, https://git.kernel.org/stable/c/ad91849996f9dd79741a961fd03585a683b08356, https://www.cve.org/CVERecord?id=CVE-2021-46943

    Affected packages

    Package

    Name: linux-hwe-edge

    Purl: pkg:deb/ubuntu/linux-hwe-edge?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.8.0-28.30~16.04.1
    4.8.0-30.32~16.04.1
    4.8.0-32.34~16.04.1
    4.8.0-34.36~16.04.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2021-46943 | CVE-DB