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From 42e29f27ce64fece2839bcce910813e97ca31210 Mon Sep 17 00:00:00 2001
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From: Robbie Harwood <rharwood@redhat.com>
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Date: Wed, 15 Jul 2020 15:42:20 -0400
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Subject: [PATCH] Ignore bad enctypes in krb5_string_to_keysalts()
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Fixes a problem where the presence of legacy/unrecognized keysalts in
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supported_enctypes would prevent the kadmin programs from starting.
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[ghudson@mit.edu: ideally we would put a warning in the kadmind log,
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but that is difficult to do when the parsing is done inside a library.
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Even adding a trace log is difficult because the kadm5 str_conv
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functions do not accept contexts.]
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ticket: 8929 (new)
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(cherry picked from commit be5396ada0e8dabd68bd0aceb733cfca39a609bc)
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(cherry picked from commit 3f873868fb08b77da2d30e164a0ef6c71c17c607)
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---
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 src/lib/kadm5/str_conv.c | 7 ++++---
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 1 file changed, 4 insertions(+), 3 deletions(-)
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diff --git a/src/lib/kadm5/str_conv.c b/src/lib/kadm5/str_conv.c
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index 7cf51d316..798295606 100644
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--- a/src/lib/kadm5/str_conv.c
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+++ b/src/lib/kadm5/str_conv.c
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@@ -340,9 +340,10 @@ krb5_string_to_keysalts(const char *string, const char *tupleseps,
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     while ((ksp = strtok_r(p, tseps, &tlasts)) != NULL) {
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         /* Pass a null pointer to subsequent calls to strtok_r(). */
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         p = NULL;
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-        ret = string_to_keysalt(ksp, ksaltseps, &etype, &stype);
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-        if (ret)
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-            goto cleanup;
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+
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+        /* Discard unrecognized keysalts. */
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+        if (string_to_keysalt(ksp, ksaltseps, &etype, &stype) != 0)
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+            continue;
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         /* Ignore duplicate keysalts if caller asks. */
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         if (!dups && krb5_keysalt_is_present(ksalts, nksalts, etype, stype))