7.8

CVE-2021-46943: media: staging/intel-ipu3: Fix set_fmt error handling

Modified
AliasesUBUNTU-CVE-2021-46943DEBIAN-CVE-2021-46943
Published 27-02-2024Last modified 11-05-2026

Vulnerability summary

CVE-2021-46943 is a high (CVSS 7.8) Incorrect Calculation of Buffer Size vulnerability in linux. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 14.3% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.23%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 3
SUSE-SU-2024:1454-1SUSE-SU-2024:1465-1SUSE-SU-2024:1489-1

Timeline

  1. 27-02-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

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 metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.23% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu82 products
  • linux< 5.4.0-77.86
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1051.53
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 6d5f26f2e045f2377b524516194657c00efbbce8, < a03fb1e8a110658215a4cefc3e2ad53279e496a6 | ≥ 6d5f26f2e045f2377b524516194657c00efbbce8, < c6b81b897f6f9445d57f8d47c4e060ec21556137 | ≥ 6d5f26f2e045f2377b524516194657c00efbbce8, < 34892ea938387d83ffcfb7775ec55f0f80767916 | ≥ 6d5f26f2e045f2377b524516194657c00efbbce8, < 6fb617e37a39db0a3eca4489431359d0bdf3b9bc | ≥ 6d5f26f2e045f2377b524516194657c00efbbce8, < ad91849996f9dd79741a961fd03585a683b08356 | 5.2
  • linux_kernel≥ 5.2.0, < 5.4.118 | ≥ 5.5.0, < 5.10.36 | ≥ 5.11.0, < 5.11.20 | ≥ 5.12.0, < 5.12.3
Debian1 product
  • linux< 5.10.38-1

3 vendors · 85 products

References

9 links