CVE-2024-43833: media: v4l: async: Fix NULL pointer dereference in adding ancillary links
In the Linux kernel, the following vulnerability has been resolved:
media: v4l: async: Fix NULL pointer dereference in adding ancillary links
In v4l2asynccreateancillarylinks(), ancillary links are created for lens and flash sub-devices. These are sub-device to sub-device links and if the async notifier is related to a V4L2 device, the source sub-device of the ancillary link is NULL, leading to a NULL pointer dereference. Check the notifier's sd field is non-NULL in v4l2asynccreateancillarylinks().
[Sakari Ailus: Reword the subject and commit messages slightly.]
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2024-43833?
CVE-2024-43833 is classified as a medium severity vulnerability due to its potential to cause a NULL pointer dereference in the Linux kernel.
How do I fix CVE-2024-43833?
To fix CVE-2024-43833, upgrade your Linux kernel to a version that has addressed the vulnerability, such as 5.10.223-1, 5.10.226-1, or later.
Which versions of the Linux kernel are affected by CVE-2024-43833?
CVE-2024-43833 affects Linux kernel versions between 5.19 and 6.1.103, as well as versions from 6.2 to 6.6.44 and from 6.7 to 6.10.3.
Is there a specific package affected by CVE-2024-43833 on Debian?
Yes, the 'linux' package versions such as 6.1.119-1~deb11u1 and others listed should be updated to mitigate CVE-2024-43833.
What components of the system does CVE-2024-43833 involve?
CVE-2024-43833 involves ancillary links for lens and flash sub-devices within the media subsystem of the Linux kernel.