| Message ID | 20210819065203.2620911-2-joel@jms.id.au |
|---|---|
| State | New |
| Headers | show |
| Series | ARM: config: aspeed: Defconfig updates | expand |
diff --git a/arch/arm/configs/aspeed_g4_defconfig b/arch/arm/configs/aspeed_g4_defconfig index a3ee647b1ebb..397c57e94743 100644 --- a/arch/arm/configs/aspeed_g4_defconfig +++ b/arch/arm/configs/aspeed_g4_defconfig @@ -18,8 +18,8 @@ CONFIG_BPF_SYSCALL=y CONFIG_EMBEDDED=y CONFIG_PERF_EVENTS=y # CONFIG_COMPAT_BRK is not set -CONFIG_SLAB=y CONFIG_SLAB_FREELIST_RANDOM=y +CONFIG_SLAB_FREELIST_HARDENED=y # CONFIG_ARCH_MULTI_V7 is not set CONFIG_ARCH_ASPEED=y CONFIG_MACH_ASPEED_G4=y diff --git a/arch/arm/configs/aspeed_g5_defconfig b/arch/arm/configs/aspeed_g5_defconfig index 2db48438c5d2..3f81146a9c0e 100644 --- a/arch/arm/configs/aspeed_g5_defconfig +++ b/arch/arm/configs/aspeed_g5_defconfig @@ -18,8 +18,8 @@ CONFIG_BPF_SYSCALL=y CONFIG_EMBEDDED=y CONFIG_PERF_EVENTS=y # CONFIG_COMPAT_BRK is not set -CONFIG_SLAB=y CONFIG_SLAB_FREELIST_RANDOM=y +CONFIG_SLAB_FREELIST_HARDENED=y CONFIG_ARCH_MULTI_V6=y CONFIG_ARCH_ASPEED=y CONFIG_MACH_ASPEED_G5=y
SLAB_FREELIST_HARDENED can protect from freelist overwrite attacks with really small overhead. It works best with the SLUB allocator, so make SLUB the default by removing SLAB=y. total used free shared buff/cache available SLAB 425596 44065.3+/-220 311099+/-3800 14864+/-3900 70432+/-3700 352767+/-3900 SLUB 425592 44225.3+/-280 313275+/-600 12132+/-3.3 68092+/-530 355295+/-280 These figures are the average memory usage from three boots of each option in qemu, running the Romulus userspace. The output is from free(1), reported in kilobytes. Signed-off-by: Joel Stanley <joel@jms.id.au> --- arch/arm/configs/aspeed_g4_defconfig | 2 +- arch/arm/configs/aspeed_g5_defconfig | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)