arc: don't leak bits of kernel stack into coredump

2017-04-11T08:58:01+00:00

commit 7798bf2140ebcc36eafec6a4194fffd8d585d471 upstream. On faulting sigreturn we do get SIGSEGV, all right, but anything we'd put into pt_regs could end up in the coredump. And since __copy_from_user() never zeroed on arc, we'd better bugger off on its failure without copying random uninitialized bits of kernel stack into pt_regs... Signed-off-by: Al Viro Signed-off-by: Willy Tarreau

3.10.77 -> 3.10.78

2016-08-26T14:16:09+00:00

first commit

2016-08-15T02:19:42+00:00

xavi/android_kernel_m2note/arch/arc/kernel/signal.c, branch ng-7.1.2

arc: don't leak bits of kernel stack into coredump

3.10.77 -> 3.10.78

first commit