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Diffstat (limited to 'arch/x86/kernel/ptrace.c')
-rw-r--r--arch/x86/kernel/ptrace.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index ffae9b9740fd..4b8ee05dd6ad 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -397,11 +397,12 @@ static int putreg(struct task_struct *child,
if (value >= TASK_SIZE_MAX)
return -EIO;
/*
- * When changing the FS base, use the same
- * mechanism as for do_arch_prctl_64().
+ * When changing the FS base, use do_arch_prctl_64()
+ * to set the index to zero and to set the base
+ * as requested.
*/
if (child->thread.fsbase != value)
- return x86_fsbase_write_task(child, value);
+ return do_arch_prctl_64(child, ARCH_SET_FS, value);
return 0;
case offsetof(struct user_regs_struct,gs_base):
/*
@@ -410,7 +411,7 @@ static int putreg(struct task_struct *child,
if (value >= TASK_SIZE_MAX)
return -EIO;
if (child->thread.gsbase != value)
- return x86_gsbase_write_task(child, value);
+ return do_arch_prctl_64(child, ARCH_SET_GS, value);
return 0;
#endif
}