{"id":"CVE-2026-90019","published":"2026-09-16T11:17:14.780","lastModified":"2026-09-16T11:17:14.780","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: fix null pointer dereference in usb_put_function_instance()\n\nusb_put_function_instance() attempts to dereference fd inside fi struct\nto get mod in uvc_alloc_inst() error path. However, fd is not allocated\nuntil later in try_get_usb_function_instance() after allocating fi in\nuvc_alloc_inst() and thus guranteed to be null in error path. Fix this\nby adding a null check for fi->fd that returns if fd is null.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/0fc54a00954f9f4c3e3d4ffa64a530685d99a39b","tags":[]},{"url":"https://git.kernel.org/stable/c/3a9691fff79bcce95338435599df6d3ae433cfdc","tags":[]},{"url":"https://git.kernel.org/stable/c/5117f236e9e30744338b425395d55913c4500897","tags":[]},{"url":"https://git.kernel.org/stable/c/6e6736c049683380f5e20becde498986e9293ca4","tags":[]},{"url":"https://git.kernel.org/stable/c/6e74ac5c596fd246e37eadfc354567179ccbe9aa","tags":[]},{"url":"https://git.kernel.org/stable/c/6ea3a073ca97716d4a73df49a3bec1c3ccf8e2a0","tags":[]},{"url":"https://git.kernel.org/stable/c/7a4f4ca7ff32ae24807c83e2a06d62b13378d53c","tags":[]},{"url":"https://git.kernel.org/stable/c/d3a7fa61997db3bf6dadef4c1bd87a4fa782a817","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}