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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2020-04-08 15:58:49 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-24 17:50:12 +0200 |
| commit | 91fce7922a756127ad2aaea6cce87a95f71f5a4c (patch) | |
| tree | 09f9525e1262ee5c7076382c511d984972b4cc55 | |
| parent | a6a0317bf9c2f1604f50a389b6711c53509e5e0d (diff) | |
| download | linux-stable-91fce7922a756127ad2aaea6cce87a95f71f5a4c.tar.gz linux-stable-91fce7922a756127ad2aaea6cce87a95f71f5a4c.tar.bz2 linux-stable-91fce7922a756127ad2aaea6cce87a95f71f5a4c.zip | |
powerpc/kasan: Fix stack overflow by increasing THREAD_SHIFT
[ 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>
| -rw-r--r-- | arch/powerpc/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 44431dc06982..ad620637cbd1 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -747,6 +747,7 @@ 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 |