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| author | Even Rouault <even.rouault@spatialys.com> | 2019-03-20 17:25:46 +0000 |
|---|---|---|
| committer | Even Rouault <even.rouault@spatialys.com> | 2019-03-20 17:25:46 +0000 |
| commit | 3a5ccffe86d2d7157a4c45d3bb0752dfdc50da6d (patch) | |
| tree | 20e1700ec98f2803d36fc80681434586f9feb2ef /src | |
| parent | b702580dc7da27ba448027792dcfc5491fb8b475 (diff) | |
| download | PROJ-3a5ccffe86d2d7157a4c45d3bb0752dfdc50da6d.tar.gz PROJ-3a5ccffe86d2d7157a4c45d3bb0752dfdc50da6d.zip | |
pj_calc_ellipsoid_params(): reject f=1
To avoid division by zero of b.
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13830
Credit to OSS Fuzz
Diffstat (limited to 'src')
| -rw-r--r-- | src/ell_set.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/ell_set.cpp b/src/ell_set.cpp index 386b4f46..d0714bee 100644 --- a/src/ell_set.cpp +++ b/src/ell_set.cpp @@ -542,6 +542,10 @@ int pj_calc_ellipsoid_params (PJ *P, double a, double es) { /* flattening */ if (0==P->f) P->f = 1 - cos (P->alpha); /* = 1 - sqrt (1 - PIN->es); */ + if (P->f == 1.0) { + pj_ctx_set_errno( P->ctx, PJD_ERR_ECCENTRICITY_IS_ONE_OR_GREATER); + return PJD_ERR_ECCENTRICITY_IS_ONE_OR_GREATER; + } P->rf = P->f != 0.0 ? 1.0/P->f: HUGE_VAL; /* second flattening */ |