In the Linux kernel, the following vulnerability has been resolved:
can: etases58x: es58xreadbulkcallback(): fix RX buffer leak on URB resubmit failure
es58xreadbulk_callback() resubmits the RX URB after processing a received packet. If the resubmit succeeds, the URB remains anchored and will be handled by the normal RX path or by teardown.
However, if usbsubmiturb() fails, the callback unanchors the URB and then returns directly. This skips the existing freeurb path, so the coherent transfer buffer allocated with usballoc_coherent() is not released.
Reuse the existing free_urb path after a resubmit failure so that the RX coherent buffer is freed before leaving the callback.
{
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74459.json"
}