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check that ctx is not a null ptr before deref cid#133

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@24111 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2008-12-11 05:01:30 +00:00
parent 92896a8aab
commit 89632983d3
1 changed files with 3 additions and 1 deletions
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4
lib/gssapi/mech/gss_wrap_size_limit.c
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@@ -38,7 +38,7 @@ gss_wrap_size_limit(OM_uint32 *minor_status,
OM_uint32 *max_input_size) OM_uint32 *max_input_size)
{ {
struct _gss_context *ctx = (struct _gss_context *) context_handle; struct _gss_context *ctx = (struct _gss_context *) context_handle;
gssapi_mech_interface m = ctx->gc_mech; gssapi_mech_interface m;
*max_input_size = 0; *max_input_size = 0;
if (ctx == NULL) { if (ctx == NULL) {
@@ -46,6 +46,8 @@ gss_wrap_size_limit(OM_uint32 *minor_status,
return GSS_S_NO_CONTEXT; return GSS_S_NO_CONTEXT;
} }
m = ctx->gc_mech;
return (m->gm_wrap_size_limit(minor_status, ctx->gc_ctx, return (m->gm_wrap_size_limit(minor_status, ctx->gc_ctx,
conf_req_flag, qop_req, req_output_size, max_input_size)); conf_req_flag, qop_req, req_output_size, max_input_size));
} }