[124/200] fs/compat_rw_copy_check_uvector: add missing compat_ptr call
diff mbox series

Message ID 20100701174256.889898736@clark.site
State New, archived
Headers show
Series
  • 2.6.34.1 stable review
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Commit Message

Greg KH July 1, 2010, 5:43 p.m. UTC
2.6.34-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Heiko Carstens <heiko.carstens@de.ibm.com>

commit 7cbe17701a0379c7b05a79a6df4f24e41d2afde8 upstream.

A call to access_ok is missing a compat_ptr conversion.  Introduced with
b83733639a494d5f42fa00a2506563fbd2d3015d "compat: factor out
compat_rw_copy_check_uvector from compat_do_readv_writev"

fs/compat.c: In function 'compat_rw_copy_check_uvector':
fs/compat.c:629: warning: passing argument 1 of '__access_ok' makes pointer from integer without a cast

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 fs/compat.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)



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Patch
diff mbox series

--- a/fs/compat.c
+++ b/fs/compat.c
@@ -626,7 +626,7 @@  ssize_t compat_rw_copy_check_uvector(int
 		tot_len += len;
 		if (tot_len < tmp) /* maths overflow on the compat_ssize_t */
 			goto out;
-		if (!access_ok(vrfy_dir(type), buf, len)) {
+		if (!access_ok(vrfy_dir(type), compat_ptr(buf), len)) {
 			ret = -EFAULT;
 			goto out;
 		}