Patrick Williams | c124f4f | 2015-09-15 14:41:29 -0500 | [diff] [blame] | 1 | Fix a possible overflow (reported by _FORTIFY_SOURCE=2) |
| 2 | |
| 3 | Ported from Gentoo |
| 4 | |
| 5 | Upstream-Status: Pending |
| 6 | |
| 7 | Signed-off-by: Khem Raj <raj.khem@gmail.com> |
| 8 | |
| 9 | Index: libtirpc-0.2.1/src/getrpcport.c |
| 10 | =================================================================== |
| 11 | --- libtirpc-0.2.1.orig/src/getrpcport.c |
| 12 | +++ libtirpc-0.2.1/src/getrpcport.c |
| 13 | @@ -54,11 +54,11 @@ getrpcport(host, prognum, versnum, proto |
| 14 | |
| 15 | if ((hp = gethostbyname(host)) == NULL) |
| 16 | return (0); |
| 17 | + if (hp->h_length != sizeof(addr.sin_addr.s_addr)) |
| 18 | + return (0); |
| 19 | memset(&addr, 0, sizeof(addr)); |
| 20 | addr.sin_family = AF_INET; |
| 21 | addr.sin_port = 0; |
| 22 | - if (hp->h_length > sizeof(addr)) |
| 23 | - hp->h_length = sizeof(addr); |
| 24 | memcpy(&addr.sin_addr.s_addr, hp->h_addr, (size_t)hp->h_length); |
| 25 | /* Inconsistent interfaces need casts! :-( */ |
| 26 | return (pmap_getport(&addr, (u_long)prognum, (u_long)versnum, |