In the Linux kernel, the following vulnerability has been resolved:
clk: sunxi-ng: Unregister clocks/resets when unbinding
Currently, unbinding a CCU driver unmaps the device's MMIO region, while
leaving its clocks/resets and their providers registered. This can cause
a page fault later when some clock operation tries to perform MMIO. Fix
this by separating the CCU initialization from the memory allocation,
and then using a devres callback to unregister the clocks and resets.
This also fixes a memory leak of the `struct ccu_reset`, and uses the
correct owner (the specific platform driver) for the clocks and resets.
Early OF clock providers are never unregistered, and limited error
handling is possible, so they are mostly unchanged. The error reporting
is made more consistent by moving the message inside of_sunxi_ccu_probe.
References
| Link | Resource |
|---|---|
| https://git.kernel.org/stable/c/9bec2b9c6134052994115d2d3374e96f2ccb9b9d | Patch Mailing List |
| https://git.kernel.org/stable/c/9bec2b9c6134052994115d2d3374e96f2ccb9b9d | Patch Mailing List |
| https://git.kernel.org/stable/c/b5dd513daa70ee8f6d281a20bd28485ee9bb7db2 | Patch Mailing List |
| https://git.kernel.org/stable/c/b5dd513daa70ee8f6d281a20bd28485ee9bb7db2 | Patch Mailing List |
Configurations
History
03 Mar 2025, 17:47
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/9bec2b9c6134052994115d2d3374e96f2ccb9b9d - Patch, Mailing List | |
| References | () https://git.kernel.org/stable/c/b5dd513daa70ee8f6d281a20bd28485ee9bb7db2 - Patch, Mailing List | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| First Time |
Linux linux Kernel
Linux |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
10 Apr 2024, 19:49
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-04-10 19:15
Updated : 2025-03-03 17:47
NVD link : CVE-2021-47205
Mitre link : CVE-2021-47205
JSON object : View
Products Affected
linux
- linux_kernel
CWE
No CWE.