Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.7 031/477] powerpc/kasan: Fix stack overflow by increasing THREAD_SHIFT | Date | Tue, 23 Jun 2020 21:50:28 +0200 |
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From: Christophe Leroy <christophe.leroy@c-s.fr>
[ Upstream commit edbadaf0671072298e506074128b64e003c5812c ]
When CONFIG_KASAN is selected, the stack usage is increased.
In the same way as x86 and arm64 architectures, increase THREAD_SHIFT when CONFIG_KASAN is selected.
Fixes: 2edb16efc899 ("powerpc/32: Add KASAN support") Reported-by: <erhard_f@mailbox.org> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://bugzilla.kernel.org/show_bug.cgi?id=207129 Link: https://lore.kernel.org/r/2c50f3b1c9bbaa4217c9a98f3044bd2a36c46a4f.1586361277.git.christophe.leroy@c-s.fr Signed-off-by: Sasha Levin <sashal@kernel.org> --- arch/powerpc/Kconfig | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 62aca9efbbbed..310957b988e31 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -773,6 +773,7 @@ config THREAD_SHIFT range 13 15 default "15" if PPC_256K_PAGES default "14" if PPC64 + default "14" if KASAN default "13" help Used to define the stack size. The default is almost always what you -- 2.25.1
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