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authorMichael Weber <xmw@gentoo.org>2017-03-06 23:12:21 +0100
committerMichael Weber <xmw@gentoo.org>2017-03-06 23:12:48 +0100
commit8231bc27f9ef5caa6f21b3601047797c432adb7c (patch)
tree04550d69604ece2b8da3b572123015795e729391 /app-text/mupdf/files
parentapp-crypt/monkeysign: Remove old version (diff)
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app-text/mupdf: Revbump with patch for CVE-2017-5991.
Package-Manager: Portage-2.3.4, Repoman-2.3.2
Diffstat (limited to 'app-text/mupdf/files')
-rw-r--r--app-text/mupdf/files/mupdf-1.10a-null-pointer-2.patch88
1 files changed, 88 insertions, 0 deletions
diff --git a/app-text/mupdf/files/mupdf-1.10a-null-pointer-2.patch b/app-text/mupdf/files/mupdf-1.10a-null-pointer-2.patch
new file mode 100644
index 000000000000..a4fefb79ca66
--- /dev/null
+++ b/app-text/mupdf/files/mupdf-1.10a-null-pointer-2.patch
@@ -0,0 +1,88 @@
+From: Robin Watts <robin.watts@artifex.com>
+Date: Thu, 9 Feb 2017 15:49:15 +0000 (+0000)
+Subject: Bug 697500: Fix NULL ptr access.
+X-Git-Url: http://git.ghostscript.com/?p=mupdf.git;a=commitdiff_plain;h=1912de5f08e90af1d9d0a9791f58ba3afdb9d465;hp=2c4e5867ee699b1081527bc6c6ea0e99a35a5c27
+
+Bug 697500: Fix NULL ptr access.
+
+Cope better with errors during rendering - avoid letting the
+gstate stack get out of sync.
+
+This avoids us ever getting into the situation of popping
+a clip when we should be popping a mask or a group. This was
+causing an unexpected case in the painting.
+---
+
+diff --git a/source/pdf/pdf-op-run.c b/source/pdf/pdf-op-run.c
+index a3ea895..f1eac8d 100644
+--- a/source/pdf/pdf-op-run.c
++++ b/source/pdf/pdf-op-run.c
+@@ -1213,6 +1213,7 @@ pdf_run_xobject(fz_context *ctx, pdf_run_processor *proc, pdf_xobject *xobj, pdf
+ pdf_run_processor *pr = (pdf_run_processor *)proc;
+ pdf_gstate *gstate = NULL;
+ int oldtop = 0;
++ int oldbot = -1;
+ fz_matrix local_transform = *transform;
+ softmask_save softmask = { NULL };
+ int gparent_save;
+@@ -1232,16 +1233,17 @@ pdf_run_xobject(fz_context *ctx, pdf_run_processor *proc, pdf_xobject *xobj, pdf
+ fz_var(cleanup_state);
+ fz_var(gstate);
+ fz_var(oldtop);
++ fz_var(oldbot);
+
+ gparent_save = pr->gparent;
+ pr->gparent = pr->gtop;
++ oldtop = pr->gtop;
+
+ fz_try(ctx)
+ {
+ pdf_gsave(ctx, pr);
+
+ gstate = pr->gstate + pr->gtop;
+- oldtop = pr->gtop;
+
+ pdf_xobject_bbox(ctx, xobj, &xobj_bbox);
+ pdf_xobject_matrix(ctx, xobj, &xobj_matrix);
+@@ -1302,12 +1304,25 @@ pdf_run_xobject(fz_context *ctx, pdf_run_processor *proc, pdf_xobject *xobj, pdf
+
+ doc = pdf_get_bound_document(ctx, xobj->obj);
+
++ oldbot = pr->gbot;
++ pr->gbot = pr->gtop;
++
+ pdf_process_contents(ctx, (pdf_processor*)pr, doc, resources, xobj->obj, NULL);
+ }
+ fz_always(ctx)
+ {
++ /* Undo any gstate mismatches due to the pdf_process_contents call */
++ if (oldbot != -1)
++ {
++ while (pr->gtop > pr->gbot)
++ {
++ pdf_grestore(ctx, pr);
++ }
++ pr->gbot = oldbot;
++ }
++
+ if (cleanup_state >= 3)
+- pdf_grestore(ctx, pr); /* Remove the clippath */
++ pdf_grestore(ctx, pr); /* Remove the state we pushed for the clippath */
+
+ /* wrap up transparency stacks */
+ if (transparency)
+@@ -1341,13 +1356,8 @@ pdf_run_xobject(fz_context *ctx, pdf_run_processor *proc, pdf_xobject *xobj, pdf
+ pr->gstate[pr->gparent].ctm = gparent_save_ctm;
+ pr->gparent = gparent_save;
+
+- if (gstate)
+- {
+- while (oldtop < pr->gtop)
+- pdf_grestore(ctx, pr);
+-
++ while (oldtop < pr->gtop)
+ pdf_grestore(ctx, pr);
+- }
+
+ pdf_unmark_obj(ctx, xobj->obj);
+ }