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[Qemu-devel] [PATCH 01/34] linux-user: Fix array bounds in errno convers
From: |
Timothy E Baldwin |
Subject: |
[Qemu-devel] [PATCH 01/34] linux-user: Fix array bounds in errno conversion |
Date: |
Sun, 6 Sep 2015 00:56:55 +0100 |
Check array bounds in host_to_target_errno() and target_to_host_errno().
Signed-off-by: Timothy Edward Baldwin <address@hidden>
---
linux-user/syscall.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 264debc..4e40dc6 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -566,14 +566,14 @@ static uint16_t
host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
static inline int host_to_target_errno(int err)
{
- if(host_to_target_errno_table[err])
+ if(err < ERRNO_TABLE_SIZE && host_to_target_errno_table[err])
return host_to_target_errno_table[err];
return err;
}
static inline int target_to_host_errno(int err)
{
- if (target_to_host_errno_table[err])
+ if (err < ERRNO_TABLE_SIZE && target_to_host_errno_table[err])
return target_to_host_errno_table[err];
return err;
}
--
2.1.4