CVE-2026-72403
Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: FCP: Fix NULL pointer dereference in interface lookup A malformed USB device can provide a vendor-specific interface without any endpoint descriptors. fcp_find_fc_interface() currently selects the first vendor-specific interface and reads endpoint 0 from it, without checking whether the interface actually has any endpoints. When bNumEndpoints is zero, no endpoint array is allocated for the parsed alternate setting, so get_endpoint(..., 0) yields an invalid endpoint descriptor pointer. Dereferencing it through usb_endpoint_num() then triggers a NULL pointer dereference. Skip vendor-specific interfaces that do not have any endpoints.
How to fix
- Linux Linuxf28d7b5f1578a7501ab17b10643ed1e4f729187e, 3ab06151ffcb8c3aeb8f78508658b6c0f05be932, e1e31e0ec8a609e17fd2e86b77bc00d9cbb24d7c or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 46757a3e7d50dac923888e7fbe68377736f13c70 ≤ v < f28d7b5f1578a7501ab17b10643ed1e4f729187e, 46757a3e7d50dac923888e7fbe68377736f13c70 ≤ v < 3ab06151ffcb8c3aeb8f78508658b6c0f05be932, 46757a3e7d50dac923888e7fbe68377736f13c70 ≤ v < e1e31e0ec8a609e17fd2e86b77bc00d9cbb24d7c, 6.14 | f28d7b5f1578a7501ab17b10643ed1e4f729187e, 3ab06151ffcb8c3aeb8f78508658b6c0f05be932, e1e31e0ec8a609e17fd2e86b77bc00d9cbb24d7c |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.