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| author | J. Bruce Fields <bfields@redhat.com> | 2013-08-20 18:13:27 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2013-09-06 11:45:58 -0400 |
| commit | 9dfd87da1aeb0fd364167ad199f40fe96a6a87be (patch) | |
| tree | adf9d2edff56be3fa54e330b55b3c76fe51c25cf /net/sunrpc/auth_gss/gss_rpc_xdr.h | |
| parent | 6a36978e6931e6601be586eb313375335f2cfaa3 (diff) | |
| download | linux-stable-9dfd87da1aeb0fd364167ad199f40fe96a6a87be.tar.gz linux-stable-9dfd87da1aeb0fd364167ad199f40fe96a6a87be.tar.bz2 linux-stable-9dfd87da1aeb0fd364167ad199f40fe96a6a87be.zip | |
rpc: fix huge kmalloc's in gss-proxy
The reply to a gssproxy can include up to NGROUPS_MAX gid's, which will
take up more than a page. We therefore need to allocate an array of
pages to hold the reply instead of trying to allocate a single huge
buffer.
Tested-by: Simo Sorce <simo@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'net/sunrpc/auth_gss/gss_rpc_xdr.h')
| -rw-r--r-- | net/sunrpc/auth_gss/gss_rpc_xdr.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/sunrpc/auth_gss/gss_rpc_xdr.h b/net/sunrpc/auth_gss/gss_rpc_xdr.h index 1c98b27d870c..685a688f3d8a 100644 --- a/net/sunrpc/auth_gss/gss_rpc_xdr.h +++ b/net/sunrpc/auth_gss/gss_rpc_xdr.h @@ -147,6 +147,8 @@ struct gssx_arg_accept_sec_context { struct gssx_cb *input_cb; u32 ret_deleg_cred; struct gssx_option_array options; + struct page **pages; + unsigned int npages; }; struct gssx_res_accept_sec_context { @@ -240,7 +242,8 @@ int gssx_dec_accept_sec_context(struct rpc_rqst *rqstp, 2 * GSSX_max_princ_sz + \ 8 + 8 + 4 + 4 + 4) #define GSSX_max_output_token_sz 1024 -#define GSSX_max_creds_sz (4 + 4 + 4 + NGROUPS_MAX * 4) +/* grouplist not included; we allocate separate pages for that: */ +#define GSSX_max_creds_sz (4 + 4 + 4 /* + NGROUPS_MAX*4 */) #define GSSX_RES_accept_sec_context_sz (GSSX_default_status_sz + \ GSSX_default_ctx_sz + \ GSSX_max_output_token_sz + \ |