CVE - CVE-2023-52774

CVE-ID
CVE-2023-52774	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/6062c527d0403cef27c54b91ac8390c3a497b250 URL:https://git.kernel.org/stable/c/6062c527d0403cef27c54b91ac8390c3a497b250 MISC:https://git.kernel.org/stable/c/9372aab5d0ff621ea203c8c603e7e5f75e888240 URL:https://git.kernel.org/stable/c/9372aab5d0ff621ea203c8c603e7e5f75e888240 MISC:https://git.kernel.org/stable/c/c841de6247e94e07566d57163d3c0d8b29278f7a URL:https://git.kernel.org/stable/c/c841de6247e94e07566d57163d3c0d8b29278f7a MISC:https://git.kernel.org/stable/c/db46cd1e0426f52999d50fa72cfa97fa39952885 URL:https://git.kernel.org/stable/c/db46cd1e0426f52999d50fa72cfa97fa39952885 MISC:https://git.kernel.org/stable/c/dc96fde8fcb2b896fd6c64802a7f4ece2e69b0be URL:https://git.kernel.org/stable/c/dc96fde8fcb2b896fd6c64802a7f4ece2e69b0be MISC:https://git.kernel.org/stable/c/ebdc569a07a3e8dbe66b4184922ad6f88ac0b96f URL:https://git.kernel.org/stable/c/ebdc569a07a3e8dbe66b4184922ad6f88ac0b96f MISC:https://git.kernel.org/stable/c/f1ac7789406e2ca9ac51c41ad2daa597f47bdd4d URL:https://git.kernel.org/stable/c/f1ac7789406e2ca9ac51c41ad2daa597f47bdd4d MISC:https://git.kernel.org/stable/c/f75617cc8df4155374132f0b500b0b3ebb967458 URL:https://git.kernel.org/stable/c/f75617cc8df4155374132f0b500b0b3ebb967458
Assigning CNA
kernel.org
Date Record Created
20240521	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240521)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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