In the Linux kernel, the following vulnerability has been resolved:
media: mxl111sf: change mutex_init() location
Syzbot reported, that mxl111sf_ctrl_msg() uses uninitialized
mutex. The problem was in wrong mutex_init() location.
Previous mutex_init(&state->msg_lock) call was in ->init() function, but
dvb_usbv2_init() has this order of calls:
dvb_usbv2_init()
dvb_usbv2_adapter_init()
dvb_usbv2_adapter_frontend_init()
props->frontend_attach()
props->init()
Since mxl111sf_* devices call mxl111sf_ctrl_msg() in ->frontend_attach()
internally we need to initialize state->msg_lock before
frontend_attach(). To achieve it, ->probe() call added to all mxl111sf_*
devices, which will simply initiaize mutex.
References
Configurations
Configuration 1 (hide)
|
History
07 Nov 2024, 17:41
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| References | () https://git.kernel.org/stable/c/44870a9e7a3c24acbb3f888b2a7cc22c9bdf7e7f - Patch | |
| References | () https://git.kernel.org/stable/c/8c6fdf62bfe1bc72bfceeaf832ef7499c7ed09ba - Patch | |
| References | () https://git.kernel.org/stable/c/b99bdf127af91d53919e96292c05f737c45ea59a - Patch | |
| References | () https://git.kernel.org/stable/c/4b2d9600b31f9ba7adbc9f3c54a068615d27b390 - Patch | |
| References | () https://git.kernel.org/stable/c/96f182c9f48b984447741f054ec301fdc8517035 - Patch | |
| CWE | CWE-908 | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| First Time |
Linux
Linux linux Kernel |
19 Jun 2024, 15:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-06-19 15:15
Updated : 2024-11-07 17:41
NVD link : CVE-2021-47583
Mitre link : CVE-2021-47583
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-908
Use of Uninitialized Resource