2018-02-06 10:33:37 +00:00
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Index: shadow-4.5/lib/commonio.c
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===================================================================
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--- shadow-4.5.orig/lib/commonio.c
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+++ shadow-4.5/lib/commonio.c
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2015-08-27 13:53:13 +00:00
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@@ -140,7 +140,10 @@ static int do_lock_file (const char *fil
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int retval;
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char buf[32];
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- fd = open (file, O_CREAT | O_EXCL | O_WRONLY, 0600);
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+ /* We depend here on the fact, that the file name is pid-specific.
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+ * So no O_EXCL here and no DoS.
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+ */
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+ fd = open (file, O_CREAT | O_TRUNC | O_WRONLY, 0600);
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if (-1 == fd) {
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if (log) {
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(void) fprintf (stderr,
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