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kernel: Activate CONFIG_LIST_HARDENED

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Activate the kernel option CONFIG_LIST_HARDENED for all targets.
This adds some inline checks to list_add() and list_del() operations
in the kernel. Before kernel 6.6 these checks were only available with
CONFIG_DEBUG_LIST option, but now a light version is available which
should only add very few extra instructions to such operations.

The performance penalty is very low from my point of view. It should
make it much harder to use bugs in Linux kernel list handling when
exploiting the Linux kernel.

Link: https://github.com/openwrt/openwrt/pull/16189
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Hauke Mehrtens 2024-08-17 14:42:50 +02:00
parent 1c61a8f958
commit fd6ce0dea9
1 changed files with 1 additions and 1 deletions
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target/linux/generic/config-6.6
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@ -3114,7 +3114,7 @@ CONFIG_LINEAR_RANGES=y
# CONFIG_LIQUIDIO is not set
# CONFIG_LIQUIDIO_VF is not set
# CONFIG_LIRC is not set
# CONFIG_LIST_HARDENED is not set
CONFIG_LIST_HARDENED=y
# CONFIG_LITEX_LITEETH is not set
# CONFIG_LITEX_SOC_CONTROLLER is not set
# CONFIG_LIVEPATCH is not set