CVE-2024-36896

CVE Details

Release Date:

2024-05-30

Description

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

See more information about CVE-2024-36896 from MITRE CVE dictionary and NIST NVD

CVSS Scoring

NOTE: The following CVSS v3.1 metrics and score provided are preliminary and subject to review.

Base Score:	5.5	CVSS Vector:	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector:	Local network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	None
Integrity Impact:	None	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (kernel)	ELSA-2024-5101	2024-08-08
Oracle Linux version 9 (kernel)	ELSA-2024-9315	2024-11-14