1 files changed, 61 insertions, 0 deletions
diff --git a/libre-testing/linux-libre/0014-ARM-mvebu-declare-asm-symbols-as-character-arrays-in.patch b/libre-testing/linux-libre/0014-ARM-mvebu-declare-asm-symbols-as-character-arrays-in.patch
new file mode 100644
index 000000000..d18e2dd8e
--- /dev/null
+++ b/libre-testing/linux-libre/0014-ARM-mvebu-declare-asm-symbols-as-character-arrays-in.patch
@@ -0,0 +1,61 @@
+From a877c2568fc96a7a7ba89dd4cf0df20341df2a37 Mon Sep 17 00:00:00 2001
+From: Ethan Tuttle <ethan@ethantuttle.com>
+Date: Tue, 19 Jun 2018 21:31:08 -0700
+Subject: [PATCH 14/14] ARM: mvebu: declare asm symbols as character arrays in
+ pmsu.c
+
+With CONFIG_FORTIFY_SOURCE, memcpy uses the declared size of operands to
+detect buffer overflows.  If src or dest is declared as a char, attempts to
+copy more than byte will result in a fortify_panic().
+
+Address this problem in mvebu_setup_boot_addr_wa() by declaring
+mvebu_boot_wa_start and mvebu_boot_wa_end as character arrays.  Also remove
+a couple addressof operators to avoid "arithmetic on pointer to an
+incomplete type" compiler error.
+
+See commit 54a7d50b9205 ("x86: mark kprobe templates as character arrays,
+not single characters") for a similar fix.
+
+Fixes "detected buffer overflow in memcpy" error during init on some mvebu
+systems (armada-370-xp, armada-375):
+
+(fortify_panic) from (mvebu_setup_boot_addr_wa+0xb0/0xb4)
+(mvebu_setup_boot_addr_wa) from (mvebu_v7_cpu_pm_init+0x154/0x204)
+(mvebu_v7_cpu_pm_init) from (do_one_initcall+0x7c/0x1a8)
+(do_one_initcall) from (kernel_init_freeable+0x1bc/0x254)
+(kernel_init_freeable) from (kernel_init+0x8/0x114)
+(kernel_init) from (ret_from_fork+0x14/0x2c)
+
+Signed-off-by: Ethan Tuttle <ethan@ethantuttle.com>
+Tested-by: Ethan Tuttle <ethan@ethantuttle.com>
+---
+ arch/arm/mach-mvebu/pmsu.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/arch/arm/mach-mvebu/pmsu.c b/arch/arm/mach-mvebu/pmsu.c
+index 27a78c80e5b1..73d5d72dfc3e 100644
+--- a/arch/arm/mach-mvebu/pmsu.c
++++ b/arch/arm/mach-mvebu/pmsu.c
+@@ -116,8 +116,8 @@ void mvebu_pmsu_set_cpu_boot_addr(int hw_cpu, void *boot_addr)
+ 		PMSU_BOOT_ADDR_REDIRECT_OFFSET(hw_cpu));
+ }
+ 
+-extern unsigned char mvebu_boot_wa_start;
+-extern unsigned char mvebu_boot_wa_end;
++extern unsigned char mvebu_boot_wa_start[];
++extern unsigned char mvebu_boot_wa_end[];
+ 
+ /*
+  * This function sets up the boot address workaround needed for SMP
+@@ -130,7 +130,7 @@ int mvebu_setup_boot_addr_wa(unsigned int crypto_eng_target,
+ 			     phys_addr_t resume_addr_reg)
+ {
+ 	void __iomem *sram_virt_base;
+-	u32 code_len = &mvebu_boot_wa_end - &mvebu_boot_wa_start;
++	u32 code_len = mvebu_boot_wa_end - mvebu_boot_wa_start;
+ 
+ 	mvebu_mbus_del_window(BOOTROM_BASE, BOOTROM_SIZE);
+ 	mvebu_mbus_add_window_by_id(crypto_eng_target, crypto_eng_attribute,
+-- 
+2.18.0
+