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PPP: Add test exhibiting empty packet null-deref

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Also updates lcp.c to compile with PPP_AUTH_SUPPORT=0 in clang
This commit is contained in:
David Cermak
2022-02-18 17:55:37 +01:00
committed by Simon Goldschmidt
parent d8d1e4a015
commit 6b734bbb2c
7 changed files with 94 additions and 3 deletions
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8
src/netif/ppp/lcp.c
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@@ -1498,7 +1498,11 @@ static int lcp_nakci(fsm *f, u_char *p, int len, int treat_as_reject) {
goto bad;
break;
case CI_AUTHTYPE:
if (0
/* This is potentially dead code (#if !PPP_AUTH_SUPPORT)
* Thus the double parantheses to mark the code explicitely
* disabled when building with clang
*/
if ((0
#if CHAP_SUPPORT
|| go->neg_chap || no.neg_chap
#endif /* CHAP_SUPPORT */
@@ -1508,7 +1512,7 @@ static int lcp_nakci(fsm *f, u_char *p, int len, int treat_as_reject) {
#if EAP_SUPPORT
|| go->neg_eap || no.neg_eap
#endif /* EAP_SUPPORT */
)
))
goto bad;
break;
case CI_MAGICNUMBER: