Title: [6584] trunk/arch/blackfin/include/asm/uaccess.h: dont check the length given to strnlen_user() since some parts of the kernel give unrealistically large sizes which never validate on no-mmu (like fs/exec.c:copy_strings())
- Revision
- 6584
- Author
- vapier
- Date
- 2009-06-04 14:13:52 -0500 (Thu, 04 Jun 2009)
Log Message
dont check the length given to strnlen_user() since some parts of the kernel give unrealistically large sizes which never validate on no-mmu (like fs/exec.c:copy_strings())
Modified Paths
Diff
Modified: trunk/arch/blackfin/include/asm/uaccess.h (6583 => 6584)
--- trunk/arch/blackfin/include/asm/uaccess.h 2009-06-04 19:11:31 UTC (rev 6583)
+++ trunk/arch/blackfin/include/asm/uaccess.h 2009-06-04 19:13:52 UTC (rev 6584)
@@ -225,13 +225,11 @@
*/
static inline long __must_check strnlen_user(const char *src, long n)
{
- if (!access_ok(VERIFY_READ, src, n))
+ if (!access_ok(VERIFY_READ, src, 1))
return 0;
return strnlen(src, n) + 1;
}
-/* We don't know the length, so only check the start of the string */
-
static inline long __must_check strlen_user(const char *src)
{
if (!access_ok(VERIFY_READ, src, 1))
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