5.5

CVE-2023-52774

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.

Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD
Diese Information steht angemeldeten Benutzern zur Verfügung.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.1 < 4.14.332
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.301
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.263
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.203
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.141
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.65
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.4
Linux ≫ Linux Kernel Version6.7 Updaterc1
Linux ≫ Linux Kernel Version6.7 Updaterc2
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.01% 0.017
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.