7.8

CVE-2021-46943

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

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
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.2.0 < 5.4.118
Linux ≫ Linux Kernel Version >= 5.5.0 < 5.10.36
Linux ≫ Linux Kernel Version >= 5.11.0 < 5.11.20
Linux ≫ Linux Kernel Version >= 5.12.0 < 5.12.3
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.14
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-131 Incorrect Calculation of Buffer Size

The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow.

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