In the Linux kernel, the following vulnerability has been resolved:
misc: fastrpc: fix DMA address corruption due to find_vma misuse
fastrpcgetargs() uses findvma() to look up the VMA for a user-provided pointer and compute a DMA address offset. When the address falls in a gap before the returned VMA, (ptr & PAGEMASK) - vma->vm_start underflows, corrupting the DMA address sent to the DSP.
Replace findvma() with vmalookup(), which returns NULL when the address is not contained within any VMA.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53159.json",
"cna_assigner": "Linux"
}