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Vulnerability · Published May 30, 2024 · Assigned by Linux

CVE-2024-36896USB: core: Fix access violation during port device removal

Critical 9.1

In plain English

A critical-severity null pointer dereference in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 61% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.9%top 39.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.94-1DEBIAN-CVE-2024-36896
Debian:13linux6.8.11-1DEBIAN-CVE-2024-36896
Debian:14linux6.8.11-1DEBIAN-CVE-2024-36896
Ubuntu:24.04:LTSlinux6.8.0-40.40UBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-36896
Ubuntu:24.04:LTSlinux-aws6.8.0-1013.14UBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1013.14~22.04.1UBUNTU-CVE-2024-36896
Ubuntu:24.04:LTSlinux-azure6.8.0-1012.14UBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1012.14~22.04.1UBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-36896
Ubuntu:24.04:LTSlinux-gcp6.8.0-1012.13UBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1012.13~22.04.1UBUNTU-CVE-2024-36896
Ubuntu:24.04:LTSlinux-gke6.8.0-1008.11UBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-40.40~22.04.3UBUNTU-CVE-2024-36896
Ubuntu:24.04:LTSlinux-ibm6.8.0-1010.10UBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2024-36896
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-40.40.1UBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-40.40.1~22.04.1UBUNTU-CVE-2024-36896
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1011.11UBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1011.11~22.04.1UBUNTU-CVE-2024-36896
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1011.11.1UBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-36896
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1010.10UBUNTU-CVE-2024-36896
Ubuntu:24.04:LTSlinux-oracle6.8.0-1010.10UBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1010.10~22.04.1UBUNTU-CVE-2024-36896
Ubuntu:24.04:LTSlinux-raspi6.8.0-1009.10UBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-36896
Ubuntu:24.04:LTSlinux-riscv6.8.0-40.40.1UBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-40.40.1~22.04.1UBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-36896
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-36896

Affected products (as reported)

VendorProductVersions
Linux Linux f061f43d7418cb62b8d073e221ec75d3f5b89e17 – before 5f1d68ef5ddac27c6b997adccd1c339cef1e6848f061f43d7418cb62b8d073e221ec75d3f5b89e17 – before 63533549ff53d24daf47c443dbd43c308afc3434f061f43d7418cb62b8d073e221ec75d3f5b89e17 – before 6119ef6517ce501fc548154691abdaf1f954a277f061f43d7418cb62b8d073e221ec75d3f5b89e17 – before a4b46d450c49f32e9d4247b421e58083fde304ce
Linux Linux 6.0

Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

References