// For flags

CVE-2021-46943

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

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: medios: staging/intel-ipu3: Corrija el manejo de errores set_fmt Si ocurre un error durante un set_fmt, no sobrescriba los tamaños anteriores con la configuración no válida. Sin este parche, el cumplimiento de v4l2 termina asignando 4 GiB de RAM y provocando los siguientes OOP [38.662975] ipu3-imgu 0000:00:05.0: el búfer swiotlb está lleno (sz: 4096 bytes) [38.662980] DMA: Fuera de SW-IOMMU espacio para 4096 bytes en el dispositivo 0000:00:05.0 [38.663010] falla de protección general: 0000 [#1] PREEMPT SMP

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

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-02-25 CVE Reserved
  • 2024-02-27 CVE Published
  • 2024-04-21 EPSS Updated
  • 2024-12-19 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-131: Incorrect Calculation of Buffer Size
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.2 < 5.4.118
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.2 < 5.4.118"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.2 < 5.10.36
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.2 < 5.10.36"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.2 < 5.11.20
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.2 < 5.11.20"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.2 < 5.12.3
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.2 < 5.12.3"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.2 < 5.13
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.2 < 5.13"
en
Affected