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check that ctx is not a null ptr before deref cid#130

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@24114 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2008-12-11 05:02:01 +00:00
parent 45b17f2891
commit b323af1a4a
1 changed files with 3 additions and 1 deletions
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4
lib/gssapi/mech/gss_get_mic.c
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@@ -37,7 +37,7 @@ gss_get_mic(OM_uint32 *minor_status,
gss_buffer_t message_token) gss_buffer_t message_token)
{ {
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;
_mg_buffer_zero(message_token); _mg_buffer_zero(message_token);
if (ctx == NULL) { if (ctx == NULL) {
@@ -45,6 +45,8 @@ gss_get_mic(OM_uint32 *minor_status,
return GSS_S_NO_CONTEXT; return GSS_S_NO_CONTEXT;
} }
m = ctx->gc_mech;
return (m->gm_get_mic(minor_status, ctx->gc_ctx, qop_req, return (m->gm_get_mic(minor_status, ctx->gc_ctx, qop_req,
message_buffer, message_token)); message_buffer, message_token));
} }