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check that ctx is not a null ptr before deref cid#140

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@24110 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2008-12-11 05:01:20 +00:00
parent b35c56fff6
commit 92896a8aab
1 changed files with 3 additions and 1 deletions
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4
lib/gssapi/mech/gss_pseudo_random.c
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@@ -45,7 +45,7 @@ gss_pseudo_random(OM_uint32 *minor_status,
gss_buffer_t prf_out) gss_buffer_t prf_out)
{ {
struct _gss_context *ctx = (struct _gss_context *) context; struct _gss_context *ctx = (struct _gss_context *) context;
gssapi_mech_interface m = ctx->gc_mech; gssapi_mech_interface m;
OM_uint32 major_status; OM_uint32 major_status;
_mg_buffer_zero(prf_out); _mg_buffer_zero(prf_out);
@@ -56,6 +56,8 @@ gss_pseudo_random(OM_uint32 *minor_status,
return GSS_S_NO_CONTEXT; return GSS_S_NO_CONTEXT;
} }
m = ctx->gc_mech;
if (m->gm_pseudo_random == NULL) if (m->gm_pseudo_random == NULL)
return GSS_S_UNAVAILABLE; return GSS_S_UNAVAILABLE;