On 8/27/20 1:53 PM, P J P wrote: > From: Prasad J Pandit <p...@fedoraproject.org> > > While doing multi block SDMA, transfer block size may exceed > the 's->fifo_buffer[s->buf_maxsz]' size. It may leave the > current element pointer 's->data_count' pointing out of bounds. > Leading the subsequent DMA r/w operation to OOB access issue. > Add check to avoid it. > > -> > https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Fsdhci_oob_write1
This directory is 3 months old, I can't find it on the list... Did I missed that or did the list eat the report? > ==1459837==ERROR: AddressSanitizer: heap-buffer-overflow > WRITE of size 54722048 at 0x61500001e280 thread T3 > #0 __interceptor_memcpy (/lib64/libasan.so.6+0x3a71d) > #1 flatview_read_continue ../exec.c:3245 > #2 flatview_read ../exec.c:3278 > #3 address_space_read_full ../exec.c:3291 > #4 address_space_rw ../exec.c:3319 > #5 dma_memory_rw_relaxed ../include/sysemu/dma.h:87 > #6 dma_memory_rw ../include/sysemu/dma.h:110 > #7 dma_memory_read ../include/sysemu/dma.h:116 > #8 sdhci_sdma_transfer_multi_blocks ../hw/sd/sdhci.c:629 > #9 sdhci_write ../hw/sd/sdhci.c:1097 > #10 memory_region_write_accessor ../softmmu/memory.c:483 > ... > > Reported-by: Ruhr-University <bugs-sys...@rub.de> > Signed-off-by: Prasad J Pandit <p...@fedoraproject.org>
