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.
Metrics
Affected Vendors & Products
References
History
Sat, 16 Nov 2024 03:00:00 +0000
Type | Values Removed | Values Added |
---|---|---|
First Time appeared |
Redhat rhel Eus
|
|
CPEs | cpe:/a:redhat:rhel_eus:9.4 | |
Vendors & Products |
Redhat rhel Eus
|
Wed, 13 Nov 2024 02:30:00 +0000
Type | Values Removed | Values Added |
---|---|---|
First Time appeared |
Redhat
Redhat enterprise Linux |
|
CPEs | cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9 |
|
Vendors & Products |
Redhat
Redhat enterprise Linux |
Mon, 04 Nov 2024 15:15:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
ssvc
|
MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2024-05-21T15:30:38.904Z
Updated: 2024-11-04T14:51:58.145Z
Reserved: 2024-05-21T15:19:24.234Z
Link: CVE-2023-52749
Vulnrichment
Updated: 2024-08-02T23:11:35.612Z
NVD
Status : Awaiting Analysis
Published: 2024-05-21T16:15:14.587
Modified: 2024-05-21T16:53:56.550
Link: CVE-2023-52749
Redhat