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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2020-04-08 15:58:49 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-05-11 23:15:16 +1000 |
| commit | edbadaf0671072298e506074128b64e003c5812c (patch) | |
| tree | 899cbba8fdbfafbba969fcd0b355ce0eedb3de5e /arch/powerpc/Kconfig | |
| parent | 4cdb2da654033d76e1b1cb4ac427d9193dce816b (diff) | |
| download | lwn-edbadaf0671072298e506074128b64e003c5812c.tar.gz lwn-edbadaf0671072298e506074128b64e003c5812c.zip | |
powerpc/kasan: Fix stack overflow by increasing THREAD_SHIFT
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
Diffstat (limited to 'arch/powerpc/Kconfig')
| -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 8324d98728db..30e2111ca15d 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -772,6 +772,7 @@ 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 |