In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
USB: serial: option: fix slab OOB read in interrupt URB callback<\/p>\n
The interrupt URB buffer is allocated in setup_port_interrupt_in() based
\non the endpoint’s wMaxPacketSize:<\/p>\n
buffer_size = usb_endpoint_maxp(epd);
\n port->interrupt_in_buffer = kmalloc(buffer_size, GFP_KERNEL);<\/p>\n
When a USB device declares wMaxPacketSize = 8 on its interrupt IN
\nendpoint, the buffer is allocated from kmalloc-8 cache (exactly
\n8 bytes).<\/p>\n
If the device sends a short packet (actual_length bRequestType and req_pkt->bRequest,
\nand then verify that there is an additional byte for the modem signal
\nstate before reading data[sizeof(struct usb_ctrlrequest)] inside the
\nconditional. Use sizeof(*req_pkt) instead of sizeof(struct
\nusb_ctrlrequest) for consistency.<\/p>\n
[ johan: use dev_err(); split signals declaration and initialisation ]<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
USB: serial: option: fix slab OOB read in interrupt URB callback<\/p>\n
The interrupt URB buffer is allocated in setup_port_interrupt_in(<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-17331","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/17331","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17331"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17331"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}