lkml.org 
[lkml]   [2019]   [Oct]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v3 0/2] dma-mapping: Add vmap checks to dma_map_single()
Date
Duplicating patch 1 commit log:

As we've seen from USB and other areas[1], we need to always do runtime
checks for DMA operating on memory regions that might be remapped. This
adds vmap checks (similar to those already in USB but missing in other
places) into dma_map_single() so all callers benefit from the checking.

[1] https://git.kernel.org/linus/3840c5b78803b2b6cc1ff820100a74a092c40cbb

-Kees

v3:
- switch to dev_warn() (gregkh, hch)
- split USB cleanup into a separate patch
v2: https://lore.kernel.org/lkml/201910041420.F6E55D29A@keescook
v1: https://lore.kernel.org/lkml/201910021341.7819A660@keescook

Kees Cook (2):
dma-mapping: Add vmap checks to dma_map_single()
usb: core: Remove redundant vmap checks

drivers/usb/core/hcd.c | 8 +-------
include/linux/dma-mapping.h | 6 ++++++
2 files changed, 7 insertions(+), 7 deletions(-)

--
2.17.1

\
 
 \ /
  Last update: 2019-10-11 00:28    [W:0.075 / U:0.752 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site