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CVE-2025-40356

spi: rockchip-sfc: Fix DMA-API usage

HIGH
7.8
CVSS Score
Published: December 16, 2025 at 01:30 PM UTC
Updated: October 14, 2026 at 01:10 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.1%

Description

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 ...

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
6.14b69386fcbc6066fb4885667743ab4d4967d561b8
Vendor states this is fixed in 22810d4cb0e8a7d51b24527e73beac60afc1c693 (fixed)
Vendor states this is fixed in ee795e82e10197c070efd380dc9615c73dffad6c (fixed)
Vendor states this is fixed in 6.14 (unaffected)
Vendor states this is fixed in 6.17.6 (unaffected)
Vendor states this is fixed in 6.18 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: cverecord
https://git.kernel.org/stable/c/22810d4cb0e8a7d51b24527e73beac60afc1c693
Source: cverecord
https://git.kernel.org/stable/c/ee795e82e10197c070efd380dc9615c73dffad6c

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusDEFERRED

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