[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-CVE-2021-47047":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T02:53:27.892Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":18,"aliases":19,"duplicate_of":9,"upstream":20,"downstream":21,"duplicates":36,"related":37,"reserved_at":9,"published_at":43,"modified_at":44,"state":45,"summary":46,"references_raw":55,"kevs":74,"epss":75,"epss_history":78,"metrics":342,"affected":348},"CVE-2021-47047","In the Linux kernel, the following vulnerability has been resolved:\n\nspi: spi-zynqmp-gqspi: return -ENOMEM if dma_map_single fails\n\nThe spi controller supports 44-bit address space on AXI in DMA mode,\nso set dma_addr_t width to 44-bit to avoid using a swiotlb mapping.\nIn addition, if dma_map_single fails, it should return immediately\ninstead of continuing doing the DMA operation which bases on invalid\naddress.\n\nThis fixes the following crash which occurs in reading a big block\nfrom flash:\n\n[  123.633577] zynqmp-qspi ff0f0000.spi: swiotlb buffer is full (sz: 4194304 bytes), total 32768 (slots), used 0 (slots)\n[  123.644230] zynqmp-qspi ff0f0000.spi: ERR:rxdma:memory not mapped\n[  123.784625] Unable to handle kernel paging request at virtual address 00000000003fffc0\n[  123.792536] Mem abort info:\n[  123.795313]   ESR = 0x96000145\n[  123.798351]   EC = 0x25: DABT (current EL), IL = 32 bits\n[  123.803655]   SET = 0, FnV = 0\n[  123.806693]   EA = 0, S1PTW = 0\n[  123.809818] Data abort info:\n[  123.812683]   ISV = 0, ISS = 0x00000145\n[  123.816503]   CM = 1, WnR = 1\n[  123.819455] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000805047000\n[  123.825887] [00000000003fffc0] pgd=0000000803b45003, p4d=0000000803b45003, pud=0000000000000000\n[  123.834586] Internal error: Oops: 96000145 [#1] PREEMPT 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