CVE-2021-46943
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.23%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.23% probability · 14th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-131
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/34892ea938387d83ffcfb7775ec55f0f80767916Patch
- https://git.kernel.org/stable/c/6fb617e37a39db0a3eca4489431359d0bdf3b9bcPatch
- https://git.kernel.org/stable/c/a03fb1e8a110658215a4cefc3e2ad53279e496a6Patch
- https://git.kernel.org/stable/c/ad91849996f9dd79741a961fd03585a683b08356Patch
- https://git.kernel.org/stable/c/c6b81b897f6f9445d57f8d47c4e060ec21556137Patch
- https://git.kernel.org/stable/c/34892ea938387d83ffcfb7775ec55f0f80767916Patch
- https://git.kernel.org/stable/c/6fb617e37a39db0a3eca4489431359d0bdf3b9bcPatch
- https://git.kernel.org/stable/c/a03fb1e8a110658215a4cefc3e2ad53279e496a6Patch
- https://git.kernel.org/stable/c/ad91849996f9dd79741a961fd03585a683b08356Patch
- https://git.kernel.org/stable/c/c6b81b897f6f9445d57f8d47c4e060ec21556137Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.