In the Linux kernel, the following vulnerability has been resolved: USB: core: Fix access violation during port device removal Testing with KASAN and syzkaller revealed a bug in port.c:disable_store(): usb_hub_to_struct_hub() can return NULL if the hub that the port belongs to is concurrently removed, but the function does not check for this possibility before dereferencing the returned value. It turns out that the first dereference is unnecessary, since hub->intfdev is the parent of the port device, so it can be changed easily. Adding a check for hub == NULL prevents further problems. The same bug exists in the disable_show() routine, and it can be fixed the same way.
History

Thu, 08 Aug 2024 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/a:redhat:enterprise_linux:8::nfv
cpe:/o:redhat:enterprise_linux:8
Vendors & Products Redhat
Redhat enterprise Linux

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-30T15:29:00.850Z

Updated: 2024-08-02T03:43:50.115Z

Reserved: 2024-05-30T15:25:07.066Z

Link: CVE-2024-36896

cve-icon Vulnrichment

Updated: 2024-08-02T03:43:50.115Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-05-30T16:15:13.023

Modified: 2024-07-03T02:03:44.757

Link: CVE-2024-36896

cve-icon Redhat

Severity : Low

Publid Date: 2024-05-30T00:00:00Z

Links: CVE-2024-36896 - Bugzilla