ppp: Fix seg fault when using pppol2tp

PPPD crashes (SEGV) when the dump or dryrun options are specified and an option
is internally defined as "o_special" with an option flag of "OPT_A2STRVAL".
As the option value is not saved when the parameter is processed, a reference
to the option will result into a crash (e.g. when printing).

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>

SVN-Revision: 45263
master
John Crispin 10 years ago
parent 4ad0ad9817
commit 9ccfbb841c
  1. 13
      package/network/services/ppp/patches/540-save-pppol2tp_fd_str.patch

@ -0,0 +1,13 @@
--- a/pppd/plugins/pppol2tp/pppol2tp.c
+++ b/pppd/plugins/pppol2tp/pppol2tp.c
@@ -148,6 +148,10 @@ static int setdevname_pppol2tp(char **ar
fatal("PPPoL2TP kernel driver not installed");
}
+ pppol2tp_fd_str = strdup(*argv);
+ if (pppol2tp_fd_str == NULL)
+ novm("PPPoL2TP FD");
+
/* Setup option defaults. Compression options are disabled! */
modem = 0;
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