What is CVE-2021-46943?

CVE-2021-46943 is a high-severity vulnerability in Linux, classified under Incorrect Calculation of Buffer Size. CVSS score: 7.8/10. Published 2024-02-27.

How severe is CVE-2021-46943?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Linux

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. 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

EPSS: 0.002 (14.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions 6d5f26f2e045f2377b524516194657c00efbbce8, 5.2, 0
Linux Linux_kernel

Weakness classification (CWE)

CWE-131 — Incorrect Calculation of Buffer Size

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2021-46943?: CVE-2021-46943 is a high-severity vulnerability in Linux, classified under Incorrect Calculation of Buffer Size. CVSS score: 7.8/10. Published 2024-02-27.
How severe is CVE-2021-46943?: High severity. CVSS v3 base score is 7.8 out of 10.