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| author | Kristian Evers <kristianevers@gmail.com> | 2017-05-23 23:21:09 +0200 |
|---|---|---|
| committer | Kristian Evers <kristianevers@gmail.com> | 2017-05-24 11:20:08 +0200 |
| commit | 9e402c2577e702dd0d45df35502dea08b774e072 (patch) | |
| tree | d00fad109f156f22bc7280c08feb7da6b942cf9c /src/PJ_aea.c | |
| parent | af14ae2be7ec4ebb97825ac5578558d144953d27 (diff) | |
| download | PROJ-9e402c2577e702dd0d45df35502dea08b774e072.tar.gz PROJ-9e402c2577e702dd0d45df35502dea08b774e072.zip | |
Avoid zero division in PJ_aea.c setup().
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1791
Credit to OSS-Fuzz.
Diffstat (limited to 'src/PJ_aea.c')
| -rw-r--r-- | src/PJ_aea.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/PJ_aea.c b/src/PJ_aea.c index e6bb413c..524657b2 100644 --- a/src/PJ_aea.c +++ b/src/PJ_aea.c @@ -165,6 +165,8 @@ static PJ *setup(PJ *P) { cosphi = cos(Q->phi2); m2 = pj_msfn(sinphi, cosphi, P->es); ml2 = pj_qsfn(sinphi, P->e, P->one_es); + if (ml2 == ml1) + return NULL; Q->n = (m1 * m1 - m2 * m2) / (ml2 - ml1); } Q->ec = 1. - .5 * P->one_es * log((1. - P->e) / |