In the Linux kernel, the following vulnerability has been resolved:
media: v4l2-core: explicitly clear ioctl input data
As seen from a recent syzbot bug report, mistakes in the compat ioctl
implementation can lead to uninitialized kernel stack data getting used
as input for driver ioctl handlers.
The reported bug is now fixed, but it's possible that other related
bugs are still present or get added in the future. As the drivers need
to check user input already, the possible impact is fairly low, but it
might still cause an information leak.
To be on the safe side, always clear the entire ioctl buffer before
calling the conversion handler functions that are meant to initialize
them.
References
Configurations
Configuration 1 (hide)
|
History
06 Mar 2025, 12:53
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/dc02c0b2bd6096f2f3ce63e1fc317aeda05f74d8 - Patch | |
| References | () https://git.kernel.org/stable/c/bfb48b54db25c3b4ef4bef5e0691464ebc4aa335 - Patch | |
| References | () https://git.kernel.org/stable/c/7b53cca764f9b291b7907fcd39d9e66ad728ee0b - Patch | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| First Time |
Linux linux Kernel
Linux |
|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
21 May 2024, 15:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-05-21 15:15
Updated : 2025-03-06 12:57
NVD link : CVE-2021-47339
Mitre link : CVE-2021-47339
JSON object : View
Products Affected
linux
- linux_kernel
CWE
No CWE.