Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=80381
Reported-by: David Binderman <dcb...@hotmail.com>
Signed-off-by: Andrey Utkin <andrey.krieger.ut...@gmail.com>
---
arch/sh/kernel/ptrace_32.c | 4 ++--
arch/sh/kernel/ptrace_64.c | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
index c1a6b89..78effcb 100644
--- a/arch/sh/kernel/ptrace_32.c
+++ b/arch/sh/kernel/ptrace_32.c
@@ -379,7 +379,7 @@ long arch_ptrace(struct task_struct *child, long request,
unsigned long tmp;
ret = -EIO;
- if ((addr & 3) || addr < 0 ||
+ if ((addr & 3) ||
addr > sizeof(struct user) - 3)
break;
@@ -419,7 +419,7 @@ long arch_ptrace(struct task_struct *child, long request,
case PTRACE_POKEUSR: /* write the word at location addr in the USER
area */
ret = -EIO;
- if ((addr & 3) || addr < 0 ||
+ if ((addr & 3) ||
addr > sizeof(struct user) - 3)
break;
diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
index 5cea973..138b2b1 100644
--- a/arch/sh/kernel/ptrace_64.c
+++ b/arch/sh/kernel/ptrace_64.c
@@ -395,7 +395,7 @@ long arch_ptrace(struct task_struct *child, long request,
unsigned long tmp;
ret = -EIO;
- if ((addr & 3) || addr < 0)
+ if (addr & 3)
break;
if (addr < sizeof(struct pt_regs))
@@ -423,7 +423,7 @@ long arch_ptrace(struct task_struct *child, long request,
this could crash the kernel or result in a security
loophole. */
ret = -EIO;
- if ((addr & 3) || addr < 0)
+ if (addr & 3)
break;
if (addr < sizeof(struct pt_regs)) {
--
1.8.5.5
--
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