Description
In the Linux kernel, the following vulnerability has been resolved: crypto: iaa - unmap dst before software fallback on decompress On a hardware analytics error, decompress retries through the software fallback, which writes req->dst with the CPU while it is still mapped DMA_FROM_DEVICE. With SWIOTLB active the later dma_unmap_sg() copies the stale bounce buffer over req->dst, corrupting the result. Unmap before the fallback runs. The async path unmaps inline; the sync path signals the retry with -EAGAIN so iaa_comp_adecompress() runs the fallback after unmapping.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
2ec6761df889fdf896fde761abd447596dd8f8c2 to < c0279e5ea2aad99d8b91f1a6579d751cc9eb2408affected2ec6761df889fdf896fde761abd447596dd8f8c2 to < fc933a4a419ba8a75da28666a018602c44846953affected2ec6761df889fdf896fde761abd447596dd8f8c2 to < fcd86180ef78b0e41763faef7c6d2de7dfb50c1aaffected2ec6761df889fdf896fde761abd447596dd8f8c2 to < 94a25930477113730372e0fa2985da4c5ac95c9aaffected
Linux Linux
Default version status: affected
6.8affected0 to < 6.8unaffected6.12.111 to ≤ 6.12.*unaffected6.18.51 to ≤ 6.18.*unaffected7.2.4 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected