CVE-2026-72403: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: 46757a3e7d50dac923888e7fbe68377736f13c70 преди f28d7b5f1578a7501ab17b10643ed1e4f729187e; 46757a3e7d50dac923888e7fbe68377736f13c70 преди 3ab06151ffcb8c3aeb8f78508658b6c0f05be932; 46757a3e7d50dac923888e7fbe68377736f13c70 преди e1e31e0ec8a609e17fd2e86b77bc00d9cbb24d7c
• Linux Linux: 6.14; преди 6.14; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-72403
• https://nvd.nist.gov/vuln/detail/CVE-2026-72403
• https://git.kernel.org/stable/c/f28d7b5f1578a7501ab17b10643ed1e4f729187e
• https://git.kernel.org/stable/c/3ab06151ffcb8c3aeb8f78508658b6c0f05be932
• https://git.kernel.org/stable/c/e1e31e0ec8a609e17fd2e86b77bc00d9cbb24d7c