In the Linux kernel, the following vulnerability has been resolved:
spi: Fix null dereference on suspend
A race condition exists where a synchronous (noqueue) transfer can be
active during a system suspend. This can cause a null pointer
dereference exception to occur when the system resumes.
Example order of events leading to the exception:
1. spi_sync() calls __spi_transfer_message_noqueue() which sets
ctlr->cur_msg
2. Spi transfer begins via spi_transfer_one_message()
3. System is suspended interrupting the transfer context
4. System is resumed
6. spi_controller_resume() calls spi_start_queue() which resets cur_msg
to NULL
7. Spi transfer context resumes and spi_finalize_current_message() is
called which dereferences cur_msg (which is now NULL)
Wait for synchronous transfers to complete before suspending by
acquiring the bus mutex and setting/checking a suspend flag.
References
Configurations
Configuration 1 (hide)
|
History
06 Jan 2025, 20:41
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CWE | CWE-476 CWE-362 |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 4.7 |
| First Time |
Linux linux Kernel
Linux |
|
| References | () https://git.kernel.org/stable/c/4ec4508db97502a12daee88c74782e8d35ced068 - Patch | |
| References | () https://git.kernel.org/stable/c/96474ea47dc67b0704392d59192b233c8197db0e - Patch | |
| References | () https://git.kernel.org/stable/c/bef4a48f4ef798c4feddf045d49e53c8a97d5e37 - Patch |
Information
Published : 2024-05-21 16:15
Updated : 2025-01-06 20:41
NVD link : CVE-2023-52749
Mitre link : CVE-2023-52749
CVE.ORG link : CVE-2023-52749
JSON object : View
Products Affected
linux
- linux_kernel