4.14-stable review patch. If anyone has any objections, please let me know.
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From: Andrew Morton akpm@linux-foundation.org
commit dc8635b78cd8669c37e230058d18c33af7451ab1 upstream.
gcc -fisolate-erroneous-paths-dereference can generate calls to abort() from modular code too.
[arnd@arndb.de: drop duplicate exports of abort()] Link: http://lkml.kernel.org/r/20180102103311.706364-1-arnd@arndb.de Reported-by: Vineet Gupta Vineet.Gupta1@synopsys.com Cc: Sudip Mukherjee sudipm.mukherjee@gmail.com Cc: Arnd Bergmann arnd@arndb.de Cc: Alexey Brodkin Alexey.Brodkin@synopsys.com Cc: Russell King rmk+kernel@armlinux.org.uk Cc: Jose Abreu Jose.Abreu@synopsys.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Cc: Evgeniy Didin Evgeniy.Didin@synopsys.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/arm/kernel/traps.c | 1 - arch/m32r/kernel/traps.c | 1 - arch/unicore32/kernel/traps.c | 1 - kernel/exit.c | 1 + 4 files changed, 1 insertion(+), 3 deletions(-)
--- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -790,7 +790,6 @@ void abort(void) /* if that doesn't kill us, halt */ panic("Oops failed to kill thread"); } -EXPORT_SYMBOL(abort);
void __init trap_init(void) { --- a/arch/m32r/kernel/traps.c +++ b/arch/m32r/kernel/traps.c @@ -122,7 +122,6 @@ void abort(void) /* if that doesn't kill us, halt */ panic("Oops failed to kill thread"); } -EXPORT_SYMBOL(abort);
void __init trap_init(void) { --- a/arch/unicore32/kernel/traps.c +++ b/arch/unicore32/kernel/traps.c @@ -298,7 +298,6 @@ void abort(void) /* if that doesn't kill us, halt */ panic("Oops failed to kill thread"); } -EXPORT_SYMBOL(abort);
void __init trap_init(void) { --- a/kernel/exit.c +++ b/kernel/exit.c @@ -1763,3 +1763,4 @@ __weak void abort(void) /* if that doesn't kill us, halt */ panic("Oops failed to kill thread"); } +EXPORT_SYMBOL(abort);