In the Linux kernel, the following vulnerability has been resolved:
s390/dasd: protect device queue against concurrent access
In dasd_profile_start() the amount of requests on the device queue are
counted. The access to the device queue is unprotected against
concurrent access. With a lot of parallel I/O, especially with alias
devices enabled, the device queue can change while dasd_profile_start()
is accessing the queue. In the worst case this leads to a kernel panic
due to incorrect pointer accesses.
Fix this by taking the device lock before accessing the queue and
counting the requests. Additionally the check for a valid profile data
pointer can be done earlier to avoid unnecessary locking in a hot path.
Metrics
Affected Vendors & Products
References
History
Wed, 11 Sep 2024 13:30:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
ssvc
|
MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2024-05-21T15:30:55.593Z
Updated: 2024-12-19T08:25:42.232Z
Reserved: 2024-05-21T15:19:24.239Z
Link: CVE-2023-52774
Vulnrichment
Updated: 2024-08-02T23:11:35.549Z
NVD
Status : Awaiting Analysis
Published: 2024-05-21T16:15:16.537
Modified: 2024-11-21T08:40:33.640
Link: CVE-2023-52774
Redhat