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Ubuntu: (CVE-2021-46943): linux vulnerability

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Ubuntu: (CVE-2021-46943): linux vulnerability

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
02/27/2024
Created
11/21/2024
Added
11/19/2024
Modified
02/11/2025

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

Solution(s)

  • ubuntu-upgrade-linux
  • ubuntu-upgrade-linux-aws
  • ubuntu-upgrade-linux-aws-5-4
  • ubuntu-upgrade-linux-aws-fips
  • ubuntu-upgrade-linux-azure
  • ubuntu-upgrade-linux-azure-5-4
  • ubuntu-upgrade-linux-azure-fips
  • ubuntu-upgrade-linux-bluefield
  • ubuntu-upgrade-linux-fips
  • ubuntu-upgrade-linux-gcp
  • ubuntu-upgrade-linux-gcp-5-4
  • ubuntu-upgrade-linux-gcp-fips
  • ubuntu-upgrade-linux-gkeop
  • ubuntu-upgrade-linux-hwe-5-4
  • ubuntu-upgrade-linux-kvm
  • ubuntu-upgrade-linux-oracle
  • ubuntu-upgrade-linux-oracle-5-4
  • ubuntu-upgrade-linux-raspi
  • ubuntu-upgrade-linux-raspi-5-4

References

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