diff options
Diffstat (limited to 'target/linux/generic/backport-5.4')
| -rw-r--r-- | target/linux/generic/backport-5.4/310-mips-Kconfig-Add-ARCH_HAS_FORTIFY_SOURCE.patch | 32 | ||||
| -rw-r--r-- | target/linux/generic/backport-5.4/311-MIPS-Fix-exception-handler-memcpy.patch | 107 |
2 files changed, 139 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.4/310-mips-Kconfig-Add-ARCH_HAS_FORTIFY_SOURCE.patch b/target/linux/generic/backport-5.4/310-mips-Kconfig-Add-ARCH_HAS_FORTIFY_SOURCE.patch new file mode 100644 index 0000000000..e02f103543 --- /dev/null +++ b/target/linux/generic/backport-5.4/310-mips-Kconfig-Add-ARCH_HAS_FORTIFY_SOURCE.patch @@ -0,0 +1,32 @@ +From a8d2bb0559b5fefa5173ff4e7496cc6250db2c8a Mon Sep 17 00:00:00 2001 +From: Dmitry Korotin <dkorotin@wavecomp.com> +Date: Thu, 12 Sep 2019 22:53:45 +0000 +Subject: [PATCH] mips: Kconfig: Add ARCH_HAS_FORTIFY_SOURCE + +FORTIFY_SOURCE detects various overflows at compile and run time. +(6974f0c4555e ("include/linux/string.h: +add the option of fortified string.h functions) + +ARCH_HAS_FORTIFY_SOURCE means that the architecture can be built and +run with CONFIG_FORTIFY_SOURCE. + +Since mips can be built and run with that flag, +select ARCH_HAS_FORTIFY_SOURCE as default. + +Signed-off-by: Dmitry Korotin <dkorotin@wavecomp.com> +Signed-off-by: Paul Burton <paul.burton@mips.com> +Cc: linux-mips@vger.kernel.org +--- + arch/mips/Kconfig | 1 + + 1 file changed, 1 insertion(+) + +--- a/arch/mips/Kconfig ++++ b/arch/mips/Kconfig +@@ -7,6 +7,7 @@ config MIPS + select ARCH_CLOCKSOURCE_DATA + select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST + select ARCH_HAS_UBSAN_SANITIZE_ALL ++ select ARCH_HAS_FORTIFY_SOURCE + select ARCH_SUPPORTS_UPROBES + select ARCH_USE_BUILTIN_BSWAP + select ARCH_USE_CMPXCHG_LOCKREF if 64BIT diff --git a/target/linux/generic/backport-5.4/311-MIPS-Fix-exception-handler-memcpy.patch b/target/linux/generic/backport-5.4/311-MIPS-Fix-exception-handler-memcpy.patch new file mode 100644 index 0000000000..5a6725c7a0 --- /dev/null +++ b/target/linux/generic/backport-5.4/311-MIPS-Fix-exception-handler-memcpy.patch @@ -0,0 +1,107 @@ +From e01c91a360793298c9e1656a61faceff01487a43 Mon Sep 17 00:00:00 2001 +From: Ben Hutchings <ben@decadent.org.uk> +Date: Sat, 23 May 2020 23:50:34 +0800 +Subject: [PATCH] MIPS: Fix exception handler memcpy() + +The exception handler subroutines are declared as a single char, but +when copied to the required addresses the copy length is 0x80. + +When range checks are enabled for memcpy() this results in a build +failure, with error messages such as: + +In file included from arch/mips/mti-malta/malta-init.c:15: +In function 'memcpy', + inlined from 'mips_nmi_setup' at arch/mips/mti-malta/malta-init.c:98:2: +include/linux/string.h:376:4: error: call to '__read_overflow2' declared with attribute error: detected read beyond size of object passed as 2nd parameter + 376 | __read_overflow2(); + | ^~~~~~~~~~~~~~~~~~ + +Change the declarations to use type char[]. + +Signed-off-by: Ben Hutchings <ben@decadent.org.uk> +Signed-off-by: YunQiang Su <syq@debian.org> +Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> +--- + arch/mips/loongson64/common/init.c | 4 ++-- + arch/mips/mti-malta/malta-init.c | 8 ++++---- + arch/mips/pistachio/init.c | 8 ++++---- + 3 files changed, 10 insertions(+), 10 deletions(-) + +--- a/arch/mips/loongson64/common/init.c ++++ b/arch/mips/loongson64/common/init.c +@@ -18,10 +18,10 @@ unsigned long __maybe_unused _loongson_a + static void __init mips_nmi_setup(void) + { + void *base; +- extern char except_vec_nmi; ++ extern char except_vec_nmi[]; + + base = (void *)(CAC_BASE + 0x380); +- memcpy(base, &except_vec_nmi, 0x80); ++ memcpy(base, except_vec_nmi, 0x80); + flush_icache_range((unsigned long)base, (unsigned long)base + 0x80); + } + +--- a/arch/mips/mti-malta/malta-init.c ++++ b/arch/mips/mti-malta/malta-init.c +@@ -90,24 +90,24 @@ static void __init console_config(void) + static void __init mips_nmi_setup(void) + { + void *base; +- extern char except_vec_nmi; ++ extern char except_vec_nmi[]; + + base = cpu_has_veic ? + (void *)(CAC_BASE + 0xa80) : + (void *)(CAC_BASE + 0x380); +- memcpy(base, &except_vec_nmi, 0x80); ++ memcpy(base, except_vec_nmi, 0x80); + flush_icache_range((unsigned long)base, (unsigned long)base + 0x80); + } + + static void __init mips_ejtag_setup(void) + { + void *base; +- extern char except_vec_ejtag_debug; ++ extern char except_vec_ejtag_debug[]; + + base = cpu_has_veic ? + (void *)(CAC_BASE + 0xa00) : + (void *)(CAC_BASE + 0x300); +- memcpy(base, &except_vec_ejtag_debug, 0x80); ++ memcpy(base, except_vec_ejtag_debug, 0x80); + flush_icache_range((unsigned long)base, (unsigned long)base + 0x80); + } + +--- a/arch/mips/pistachio/init.c ++++ b/arch/mips/pistachio/init.c +@@ -83,12 +83,12 @@ phys_addr_t mips_cdmm_phys_base(void) + static void __init mips_nmi_setup(void) + { + void *base; +- extern char except_vec_nmi; ++ extern char except_vec_nmi[]; + + base = cpu_has_veic ? + (void *)(CAC_BASE + 0xa80) : + (void *)(CAC_BASE + 0x380); +- memcpy(base, &except_vec_nmi, 0x80); ++ memcpy(base, except_vec_nmi, 0x80); + flush_icache_range((unsigned long)base, + (unsigned long)base + 0x80); + } +@@ -96,12 +96,12 @@ static void __init mips_nmi_setup(void) + static void __init mips_ejtag_setup(void) + { + void *base; +- extern char except_vec_ejtag_debug; ++ extern char except_vec_ejtag_debug[]; + + base = cpu_has_veic ? + (void *)(CAC_BASE + 0xa00) : + (void *)(CAC_BASE + 0x300); +- memcpy(base, &except_vec_ejtag_debug, 0x80); ++ memcpy(base, except_vec_ejtag_debug, 0x80); + flush_icache_range((unsigned long)base, + (unsigned long)base + 0x80); + } |