CVE-2024-36896
Linux Kernel vulnerability
- Published30 May 2024
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 3.1 breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:HAffected products
Remediation
Frequently asked
Is CVE-2024-36896 being actively exploited?
CVE-2024-36896 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.92%.
How severe is CVE-2024-36896?
CVE-2024-36896 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.92% probability of exploitation.
Which products are affected by CVE-2024-36896?
Affected products include Linux Kernel.
How do I fix CVE-2024-36896?
Upgrade affected software to a fixed version, for example Linux Kernel 6.1.91 or later, then confirm no affected versions remain in your inventory.
How Secuno handles this
Secuno correlates vulnerabilities like CVE-2024-36896 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.
Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.