CVE-2025-40356

In the Linux kernel, the following vulnerability has been resolved:

spi: rockchip-sfc: Fix DMA-API usage

Use DMA-API dma_map_single() call for getting the DMA address of the

transfer buffer instead of hacking with virt_to_phys().

This fixes the following DMA-API debug warning:

------------[ cut here ]------------

DMA-API: rockchip-sfc fe300000.spi: device driver tries to sync DMA memory it has not allocated [device address=0x000000000cf70000] [size=288 bytes]

WARNING: kernel/dma/debug.c:1106 at check_sync+0x1d8/0x690, CPU#2: systemd-udevd/151

Modules linked in: ...

Hardware name: Hardkernel ODROID-M1 (DT)

pstate: 604000c9 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)

pc : check_sync+0x1d8/0x690

lr : check_sync+0x1d8/0x690

..

Call trace:

check_sync+0x1d8/0x690 (P)

debug_dma_sync_single_for_cpu+0x84/0x8c

__dma_sync_single_for_cpu+0x88/0x234

rockchip_sfc_exec_mem_op+0x4a0/0x798 [spi_rockchip_sfc]

spi_mem_exec_op+0x408/0x498

spi_nor_read_data+0x170/0x184

spi_nor_read_sfdp+0x74/0xe4

spi_nor_parse_sfdp+0x120/0x11f0

spi_nor_sfdp_init_params_deprecated+0x3c/0x8c

spi_nor_scan+0x690/0xf88

spi_nor_probe+0xe4/0x304

spi_mem_probe+0x6c/0xa8

spi_probe+0x94/0xd4

really_probe+0xbc/0x298

...