Remove upstreamed patch
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From 82347f452febe3cbffc36b0a3308ffb462515442 Mon Sep 17 00:00:00 2001
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From: Jakub Hrozek <jhrozek@redhat.com>
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Date: Tue, 12 Aug 2014 10:32:33 +0200
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Subject: [PATCH] IPA: handle searches by SID in apply_subdomain_homedir
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https://fedorahosted.org/sssd/ticket/2391
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apply_subdomain_homedir() didn't handle the situation where an entity
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that doesn't match was requested from the cache. For user and group
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lookups this wasn't a problem because the negative match was caught
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sooner.
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But SID lookups can match either user or group. When a group SID was
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requested, the preceding LDAP request matched the SID and stored the
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group in the cache. Then apply_subdomain_homedir() only tried to search
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user by SID, didn't find the entry and accessed a NULL pointer.
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A simple reproducer is:
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$ python
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>>> import pysss_nss_idmap
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>>> pysss_nss_idmap.getnamebysid(group_sid)
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The group_sid can be anything, including Domain Users (XXX-513)
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Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>
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---
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src/providers/ipa/ipa_subdomains_id.c | 13 +++++++++----
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1 file changed, 9 insertions(+), 4 deletions(-)
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diff --git a/src/providers/ipa/ipa_subdomains_id.c b/src/providers/ipa/ipa_subdomains_id.c
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index 113bc6c06f82bc631b3efa92b87a1cadc7f22605..659bc7c2cba4fd9e4d8b07d79efaa6feede35cb9 100644
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--- a/src/providers/ipa/ipa_subdomains_id.c
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+++ b/src/providers/ipa/ipa_subdomains_id.c
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@@ -498,6 +498,9 @@ apply_subdomain_homedir(TALLOC_CTX *mem_ctx, struct sss_domain_info *dom,
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if (filter_type == BE_FILTER_NAME) {
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ret = sysdb_getpwnam(mem_ctx, dom, filter_value, &res);
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+ if (res && res->count == 0) {
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+ ret = ENOENT;
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+ }
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} else if (filter_type == BE_FILTER_IDNUM) {
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errno = 0;
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uid = strtouint32(filter_value, NULL, 10);
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@@ -506,6 +509,9 @@ apply_subdomain_homedir(TALLOC_CTX *mem_ctx, struct sss_domain_info *dom,
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goto done;
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}
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ret = sysdb_getpwuid(mem_ctx, dom, uid, &res);
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+ if (res && res->count == 0) {
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+ ret = ENOENT;
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+ }
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} else if (filter_type == BE_FILTER_SECID) {
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ret = sysdb_search_user_by_sid_str(mem_ctx, dom, filter_value,
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attrs, &msg);
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@@ -521,10 +527,9 @@ apply_subdomain_homedir(TALLOC_CTX *mem_ctx, struct sss_domain_info *dom,
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"Failed to make request to our cache: [%d]: [%s]\n",
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ret, sss_strerror(ret));
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goto done;
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- }
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-
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- if ((res && res->count == 0) || (msg && msg->num_elements == 0)) {
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- ret = ENOENT;
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+ } else if (ret == ENOENT) {
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+ DEBUG(SSSDBG_TRACE_FUNC, "Cannot find [%s] with search type [%d]\n",
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+ filter_value, filter_type);
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goto done;
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}
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--
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1.9.3
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