Beveiligingsadvies

CVE-2023-52837

CVE-kwetsbaarheidsdetails - eXtreme Datacenter Security Operations

Gepubliceerd 2024-05-21 15:31:37

Laatst bijgewerkt 2026-08-05 09:11:37

Toegewezen door Linux

CVSS-score 7.8

Status PUBLISHED

Beschrijving

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.

← Alle CVE's bekijken Bekijk op cve.org ↗