LoongArch: Fix arch_dup_task_struct() for CONFIG_RANDSTRUCT

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commit a91b446e35 upstream.

Now the optimized version of arch_dup_task_struct() for LoongArch
assumes 'thread' is the last member of 'task_struct'. But this is
not true if CONFIG_RANDSTRUCT is enabled after Linux-6.16.

So fix the arch_dup_task_struct() function for CONFIG_RANDSTRUCT by
copying the whole 'task_struct'.

Cc: stable@vger.kernel.org   # 6.16+
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Huacai Chen 2025-12-06 10:39:48 +08:00 • committed by Greg Kroah-Hartman

parent a6021c133e

commit 1f8330dcdc

1 changed files with 5 additions and 0 deletions

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arch/loongarch/kernel/process.c

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