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| author | Michael Vrhel <michael.vrhel@artifex.com> | 2022-03-21 12:42:54 -0700 |
|---|---|---|
| committer | Chris Liddell <chris.liddell@artifex.com> | 2022-03-22 11:34:45 +0000 |
| commit | a4b71ab352e9e9b3f849b3727944b6e8ec64e7b0 (patch) | |
| tree | 7f5ea76783c2a583237817693e6f120ab5363b8c | |
| parent | 6abd758e502a2cd71045f3db5496ff85478f0abb (diff) | |
| download | ghostpdl-a4b71ab352e9e9b3f849b3727944b6e8ec64e7b0.tar.gz | |
Bug 705090 oss-fuzz #45892 Bug 705092 oss-fuzz #45823
If begin transparency group returns an error, do not set the
GroupPushed state variable to true. Otherwise we will end
up doing an unmatched end group command later, leading to
the seg fault.
| -rw-r--r-- | pdf/pdf_trans.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/pdf/pdf_trans.c b/pdf/pdf_trans.c index 0fa750b4d..df0194d73 100644 --- a/pdf/pdf_trans.c +++ b/pdf/pdf_trans.c @@ -758,7 +758,11 @@ int pdfi_trans_setup(pdf_context *ctx, pdfi_trans_state_t *state, gs_rect *bbox, if (igs->SMask != NULL && mode != BLEND_MODE_Normal && mode != BLEND_MODE_Compatible) isolated = true; code = pdfi_trans_begin_simple_group(ctx, bbox, stroked_bbox, isolated, false); - state->GroupPushed = true; + + /* Group was not pushed if error */ + if (code >= 0) + state->GroupPushed = true; + state->saveStrokeAlpha = gs_getstrokeconstantalpha(ctx->pgs); state->saveFillAlpha = gs_getfillconstantalpha(ctx->pgs); code = gs_setfillconstantalpha(ctx->pgs, 1.0); |