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| author | Chuck Lever <chuck.lever@oracle.com> | 2007-09-26 22:38:10 +0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-10-10 01:20:30 +0400 |
| commit | 67f97d83bfcca9d9f8fbeeb14e7c644a82b24e12 (patch) | |
| tree | a33db52992e4f916618d629eef94dd811e7d42b1 /net/sunrpc/auth_gss | |
| parent | afde94f398b62c8596a8d0cbfc25798f0b52a371 (diff) | |
| download | linux-67f97d83bfcca9d9f8fbeeb14e7c644a82b24e12.tar.xz | |
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/sunrpc/auth_gss')
| -rw-r--r-- | net/sunrpc/auth_gss/gss_krb5_wrap.c | 6 |
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 42b3220bed39..8bd074df27d3 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); |