CVE-2021-46943

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

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

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-131

Affected software

VendorProductVersions
LinuxLinux>= 6d5f26f2e045f2377b524516194657c00efbbce8, < a03fb1e8a110658215a4cefc3e2ad53279e496a6; >= 6d5f26f2e045f2377b524516194657c00efbbce8, < c6b81b897f6f9445d57f8d47c4e060ec21556137; >= 6d5f26f2e045f2377b524516194657c00efbbce8, < 34892ea938387d83ffcfb7775ec55f0f80767916; >= 6d5f26f2e045f2377b524516194657c00efbbce8, < 6fb617e37a39db0a3eca4489431359d0bdf3b9bc; >= 6d5f26f2e045f2377b524516194657c00efbbce8, < ad91849996f9dd79741a961fd03585a683b08356
LinuxLinux5.2

References

Timeline

Published
Feb 27, 2024
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

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CVE-2021-46943: High severity, CVSS 7.8 | Vulnix