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.
References
Configurations
Configuration 1 (hide)
|
History
23 Sep 2025, 20:00
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/6062c527d0403cef27c54b91ac8390c3a497b250 - Patch | |
| References | () https://git.kernel.org/stable/c/9372aab5d0ff621ea203c8c603e7e5f75e888240 - Patch | |
| References | () https://git.kernel.org/stable/c/c841de6247e94e07566d57163d3c0d8b29278f7a - Patch | |
| References | () https://git.kernel.org/stable/c/db46cd1e0426f52999d50fa72cfa97fa39952885 - Patch | |
| References | () https://git.kernel.org/stable/c/dc96fde8fcb2b896fd6c64802a7f4ece2e69b0be - Patch | |
| References | () https://git.kernel.org/stable/c/ebdc569a07a3e8dbe66b4184922ad6f88ac0b96f - Patch | |
| References | () https://git.kernel.org/stable/c/f1ac7789406e2ca9ac51c41ad2daa597f47bdd4d - Patch | |
| References | () https://git.kernel.org/stable/c/f75617cc8df4155374132f0b500b0b3ebb967458 - Patch | |
| CWE | CWE-476 | |
| First Time |
Linux
Linux linux Kernel |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CPE | cpe:2.3:o:linux:linux_kernel:6.7:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.7:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Information
Published : 2024-05-21 16:15
Updated : 2025-09-23 20:00
NVD link : CVE-2023-52774
Mitre link : CVE-2023-52774
CVE.ORG link : CVE-2023-52774
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-476
NULL Pointer Dereference
