[bind-dyndb-ldap] Fix race condition in semaphore_wait (#727856)
Adam Tkac
atkac at fedoraproject.org
Wed Aug 3 13:14:45 UTC 2011
commit ca3623992d11c6cbcf923f4707d8aca83463bdec
Author: Adam Tkac <atkac at redhat.com>
Date: Wed Aug 3 15:14:01 2011 +0200
Fix race condition in semaphore_wait (#727856)
Signed-off-by: Adam Tkac <atkac at redhat.com>
bind-dyndb-ldap-rh727856.patch | 15 +++++++++++++++
bind-dyndb-ldap.spec | 8 +++++++-
2 files changed, 22 insertions(+), 1 deletions(-)
---
diff --git a/bind-dyndb-ldap-rh727856.patch b/bind-dyndb-ldap-rh727856.patch
new file mode 100644
index 0000000..a536629
--- /dev/null
+++ b/bind-dyndb-ldap-rh727856.patch
@@ -0,0 +1,15 @@
+diff -up bind-dyndb-ldap-0.2.0/src/semaphore.c.rh727856 bind-dyndb-ldap-0.2.0/src/semaphore.c
+--- bind-dyndb-ldap-0.2.0/src/semaphore.c.rh727856 2011-08-02 18:03:49.034837252 +0200
++++ bind-dyndb-ldap-0.2.0/src/semaphore.c 2011-08-03 14:44:42.230665446 +0200
+@@ -83,9 +83,9 @@ semaphore_wait(semaphore_t *sem)
+
+ LOCK(&sem->mutex);
+
+- sem->value--;
+- if (sem->value < 0)
++ while (sem->value <= 0)
+ WAIT(&sem->cond, &sem->mutex);
++ sem->value--;
+
+ UNLOCK(&sem->mutex);
+ }
diff --git a/bind-dyndb-ldap.spec b/bind-dyndb-ldap.spec
index f456193..02a5da5 100644
--- a/bind-dyndb-ldap.spec
+++ b/bind-dyndb-ldap.spec
@@ -1,6 +1,6 @@
Name: bind-dyndb-ldap
Version: 0.2.0
-Release: 3%{?dist}
+Release: 4%{?dist}
Summary: LDAP back-end plug-in for BIND
Group: System Environment/Libraries
@@ -15,6 +15,8 @@ BuildRequires: openldap-devel
Requires: bind >= 32:9.6.1-0.3.b1
+Patch0:bind-dyndb-ldap-rh727856.patch
+
%description
This package provides an LDAP back-end plug-in for BIND. It features
support for dynamic updates and internal caching, to lift the load
@@ -23,6 +25,7 @@ off of your LDAP server.
%prep
%setup -q
+%patch0 -p1 -b .rh727856
%build
export CFLAGS="`isc-config.sh --cflags dns` $RPM_OPT_FLAGS"
@@ -50,6 +53,9 @@ rm -rf %{buildroot}
%changelog
+* Wed Aug 03 2011 Adam Tkac <atkac redhat com> - 0.2.0-4
+- fix race condition in semaphore_wait (#727856)
+
* Mon Feb 21 2011 Adam Tkac <atkac redhat com> - 0.2.0-3
- rebuild against new bind
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