CVE-2021-46943

media: staging/intel-ipu3: Fix set_fmt error handling

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

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.03%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/a03fb1e8a110658215a4cefc3e2ad53279e496a6 patch
https://git.kernel.org/stable/c/c6b81b897f6f9445d57f8d47c4e060ec21556137 patch
https://git.kernel.org/stable/c/34892ea938387d83ffcfb7775ec55f0f80767916 patch
https://git.kernel.org/stable/c/6fb617e37a39db0a3eca4489431359d0bdf3b9bc patch
https://git.kernel.org/stable/c/ad91849996f9dd79741a961fd03585a683b08356 patch

Frequently Asked Questions

What is the severity of CVE-2021-46943?
CVE-2021-46943 has been scored as a high severity vulnerability.
How to fix CVE-2021-46943?
To fix CVE-2021-46943, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-46943 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-46943 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-46943?
CVE-2021-46943 affects Linux Linux, Linux Linux.
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