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| author | Kristian Evers <kristianevers@gmail.com> | 2017-05-23 23:44:40 +0200 |
|---|---|---|
| committer | Kristian Evers <kristianevers@gmail.com> | 2017-05-24 11:20:09 +0200 |
| commit | a7b684ec7c750943a1f1f2291090c090b44da729 (patch) | |
| tree | 51d704577936b722425d80ffc51aeb9b6e933c8e | |
| parent | 13247554c9e245093da63145d28bdc965a1d52c4 (diff) | |
| download | PROJ-a7b684ec7c750943a1f1f2291090c090b44da729.tar.gz PROJ-a7b684ec7c750943a1f1f2291090c090b44da729.zip | |
Avoid division by zero in pj_ell_set().
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1787
Credit to OSS-Fuzz.
| -rw-r--r-- | src/pj_ell_set.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/pj_ell_set.c b/src/pj_ell_set.c index 865726fa..72892ac2 100644 --- a/src/pj_ell_set.c +++ b/src/pj_ell_set.c @@ -74,6 +74,10 @@ int pj_ell_set(projCtx ctx, paralist *pl, double *a, double *es) { *a = sqrt(*a * b); *es = 0.; } else if (pj_param(ctx,pl, "bR_h").i) { /* sphere--harmonic mean */ + if ( (*a + b) == 0.0) { + pj_ctx_set_errno(ctx, -20); + goto bomb; + } *a = 2. * *a * b / (*a + b); *es = 0.; } else if ((i = pj_param(ctx,pl, "tR_lat_a").i) || /* sphere--arith. */ |