5.5

CVE-2023-52774

s390/dasd: protect device queue against concurrent access

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.
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
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.148
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.

https://git.kernel.org/stable/c/6062c527d0403cef27c54b91ac8390c3a497b250
Patch
https://git.kernel.org/stable/c/9372aab5d0ff621ea203c8c603e7e5f75e888240
Patch
https://git.kernel.org/stable/c/c841de6247e94e07566d57163d3c0d8b29278f7a
Patch
https://git.kernel.org/stable/c/db46cd1e0426f52999d50fa72cfa97fa39952885
Patch
https://git.kernel.org/stable/c/dc96fde8fcb2b896fd6c64802a7f4ece2e69b0be
Patch
https://git.kernel.org/stable/c/ebdc569a07a3e8dbe66b4184922ad6f88ac0b96f
Patch
https://git.kernel.org/stable/c/f1ac7789406e2ca9ac51c41ad2daa597f47bdd4d
Patch
https://git.kernel.org/stable/c/f75617cc8df4155374132f0b500b0b3ebb967458
Patch