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commit 368c5c3e001a37571b61ab342f2b654c3d23643d
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Author: Sam James <sam@gentoo.org>
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Date: Sun Jun 5 04:57:09 2022 +0100
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nss: add assert to DB_LOOKUP_FCT (BZ #28752)
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It's interesting if we have a null action list,
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so an assert is worthwhile.
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Suggested-by: DJ Delorie <dj@redhat.com>
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Signed-off-by: Sam James <sam@gentoo.org>
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Reviewed-by: DJ Delorie <dj@redhat.com>
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(cherry picked from commit 3fdf0a205b622e40fa7e3c4ed1e4ed4d5c6c5380)
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diff --git a/nss/XXX-lookup.c b/nss/XXX-lookup.c
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index dbc87868dd408d9f..343fd9869bd12714 100644
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--- a/nss/XXX-lookup.c
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+++ b/nss/XXX-lookup.c
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@@ -16,6 +16,7 @@
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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+#include <assert.h>
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#include "nsswitch.h"
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/*******************************************************************\
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@@ -55,6 +56,10 @@ DB_LOOKUP_FCT (nss_action_list *ni, const char *fct_name, const char *fct2_name,
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*ni = DATABASE_NAME_SYMBOL;
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+ /* We want to know about it if we've somehow got a NULL action list;
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+ in the past, we had bad state if seccomp interfered with setup. */
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+ assert(*ni != NULL);
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+
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return __nss_lookup (ni, fct_name, fct2_name, fctp);
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}
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libc_hidden_def (DB_LOOKUP_FCT)
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