CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 7.8. It affects Linux, F5.
CVE
CVE-2023-52837
Severity
HIGH
CVSS
7.8
EPSS
0.25%
Linux F5
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: nbd: fix uaf in nbd_open Commit 4af5f2e03013 ("nbd: use blk_mq_alloc_disk and blk_cleanup_disk") cleans up disk by blk_cleanup_disk() and it won't set disk->private_data as NULL as before. UAF may be triggered in nbd_open() if someone tries to open nbd device right after nbd_put() since nbd has been free in nbd_dev_remove(). Fix this by implementing ->free_disk and free private data in it.
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