In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix use after free on context disconnection Upon module load, a kthread is created targeting the pvr2_context_thread_func function, which may call pvr2_context_destroy and thus call kfree() on the context object. However, that might happen before the usb hub_event handler is able to notify the driver. This patch adds a sanity check before the invalid read reported by syzbot, within the context disconnection call stack.
History

Wed, 11 Sep 2024 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-02-22T16:21:37.784Z

Updated: 2024-09-11T17:33:51.682Z

Reserved: 2024-02-20T12:30:33.291Z

Link: CVE-2023-52445

cve-icon Vulnrichment

Updated: 2024-09-11T12:42:19.259Z

cve-icon NVD

Status : Modified

Published: 2024-02-22T17:15:08.477

Modified: 2024-06-27T12:15:14.443

Link: CVE-2023-52445

cve-icon Redhat

Severity : Low

Publid Date: 2024-02-22T00:00:00Z

Links: CVE-2023-52445 - Bugzilla