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authorChuck Lever <chuck.lever@oracle.com>2007-09-26 14:38:10 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2007-10-09 17:20:30 -0400
commit67f97d83bfcca9d9f8fbeeb14e7c644a82b24e12 (patch)
treea33db52992e4f916618d629eef94dd811e7d42b1 /net
parentafde94f398b62c8596a8d0cbfc25798f0b52a371 (diff)
downloadop-kernel-dev-67f97d83bfcca9d9f8fbeeb14e7c644a82b24e12.zip
op-kernel-dev-67f97d83bfcca9d9f8fbeeb14e7c644a82b24e12.tar.gz
SUNRPC: Use correct type in buffer length calculations
Use correct type signage in gss_krb5_remove_padding() when doing length calculations. Both xdr_buf.len and iov.iov_len are size_t, which is unsigned; so use an unsigned type for our temporary length variable to ensure we don't overflow it.. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net')
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_wrap.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c
index 42b3220..8bd074d 100644
--- a/net/sunrpc/auth_gss/gss_krb5_wrap.c
+++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c
@@ -42,7 +42,7 @@ gss_krb5_remove_padding(struct xdr_buf *buf, int blocksize)
{
u8 *ptr;
u8 pad;
- int len = buf->len;
+ size_t len = buf->len;
if (len <= buf->head[0].iov_len) {
pad = *(u8 *)(buf->head[0].iov_base + len - 1);
@@ -53,9 +53,9 @@ gss_krb5_remove_padding(struct xdr_buf *buf, int blocksize)
} else
len -= buf->head[0].iov_len;
if (len <= buf->page_len) {
- int last = (buf->page_base + len - 1)
+ unsigned int last = (buf->page_base + len - 1)
>>PAGE_CACHE_SHIFT;
- int offset = (buf->page_base + len - 1)
+ unsigned int offset = (buf->page_base + len - 1)
& (PAGE_CACHE_SIZE - 1);
ptr = kmap_atomic(buf->pages[last], KM_USER0);
pad = *(ptr + offset);
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