CVE-2024-36896

CRITICAL EPSS 55.9%
Published May 30, 20242y ago · Modified Jun 17, 20262w ago
9.1 CVSS 3.1
Critical
Find Similar
Published May 30, 2024 2y ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
9.1
Exploitability
3.9
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
55.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥6.0  –  <6.1.91
linuxlinux_kernel*≥6.2  –  <6.6.31
linuxlinux_kernel*≥6.7  –  <6.8.10
linuxlinux_kernel6.9any
linuxlinux_kernel6.9any
linuxlinux_kernel6.9any
linuxlinux_kernel6.9any
linuxlinux_kernel6.9any
linuxlinux_kernel6.9any

References 4

  • git.kernel.org https://git.kernel.org/stable/c/5f1d68ef5ddac27c6b997adccd1c339cef1e6848
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6119ef6517ce501fc548154691abdaf1f954a277
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/63533549ff53d24daf47c443dbd43c308afc3434
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a4b46d450c49f32e9d4247b421e58083fde304ce
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/5f1d68ef5ddac27c6b997adccd1c339cef1e6848
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6119ef6517ce501fc548154691abdaf1f954a277
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/63533549ff53d24daf47c443dbd43c308afc3434
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a4b46d450c49f32e9d4247b421e58083fde304ce
    Patch