CVE-2021-47653

HIGH EPSS 15.6%
Published Feb 26, 20251y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: media: davinci: vpif: fix use-after-free on driver unbind The driver allocates and registers two platform device structures during probe, but the devices were never deregistered on driver unbind. This results in a use-after-free on driver unbind as the device structures were allocated using devres and would be freed by driver core when remove() returns. Fix this by adding the missing deregistration calls to the remove() callback and failing probe on registration errors. Note that the platform device structures must be freed using a proper release callback to avoid leaking associated resources like device names.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
15.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥4.13  –  <5.15.54
linuxlinux_kernel*≥5.16  –  <5.16.19
linuxlinux_kernel*≥5.17  –  <5.17.2

References 4

  • git.kernel.org https://git.kernel.org/stable/c/43acb728bbc40169d2e2425e84a80068270974be
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6512c3c39cb6b573b791ce45365818a38b76afbe
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9ffc602e14d7b9f7e7cb2f67e18dfef9ef8af676
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b5a3bb7f6f164eb6ee74ef4898dcd019b2063448
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/43acb728bbc40169d2e2425e84a80068270974be
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6512c3c39cb6b573b791ce45365818a38b76afbe
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9ffc602e14d7b9f7e7cb2f67e18dfef9ef8af676
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b5a3bb7f6f164eb6ee74ef4898dcd019b2063448
    Patch