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| author | Michael Olbrich <m.olbrich@pengutronix.de> | 2018-02-13 16:01:46 +0100 |
|---|---|---|
| committer | Robert Schwebel <r.schwebel@pengutronix.de> | 2018-02-18 20:18:04 +0100 |
| commit | 7123f2d9eb1d54e429ecd68d37515b8b57b18873 (patch) | |
| tree | 6a55f4bedc8cde54d94ed564666be79b2583f527 | |
| parent | 199b019af9b501b3683718208d8c936c57a42ca0 (diff) | |
| download | DistroKit-7123f2d9eb1d54e429ecd68d37515b8b57b18873.tar.gz DistroKit-7123f2d9eb1d54e429ecd68d37515b8b57b18873.tar.xz | |
kernelconfig: reason: set better DEFAULT_MMAP_MIN_ADDR
Keeping userspace processes without CAP_SYS_RAWIO from writing to low pages
can help reduce the impact of kernel NULL pointer bugs. 32kB is recommened
on ARM.
Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
| -rw-r--r-- | configs/platform-v7a/kernelconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/configs/platform-v7a/kernelconfig b/configs/platform-v7a/kernelconfig index adb9fc5..59489b3 100644 --- a/configs/platform-v7a/kernelconfig +++ b/configs/platform-v7a/kernelconfig @@ -621,7 +621,7 @@ CONFIG_MIGRATION=y # CONFIG_PHYS_ADDR_T_64BIT is not set CONFIG_BOUNCE=y # CONFIG_KSM is not set -CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 +CONFIG_DEFAULT_MMAP_MIN_ADDR=32768 # CONFIG_ARCH_WANTS_THP_SWAP is not set # CONFIG_CLEANCACHE is not set CONFIG_CMA=y |