diff options
Diffstat (limited to 'media-libs/jbig2dec/files/jbig2dec-0.18-overflow-IAID.patch')
-rw-r--r-- | media-libs/jbig2dec/files/jbig2dec-0.18-overflow-IAID.patch | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/media-libs/jbig2dec/files/jbig2dec-0.18-overflow-IAID.patch b/media-libs/jbig2dec/files/jbig2dec-0.18-overflow-IAID.patch deleted file mode 100644 index 7205c980fc28..000000000000 --- a/media-libs/jbig2dec/files/jbig2dec-0.18-overflow-IAID.patch +++ /dev/null @@ -1,36 +0,0 @@ -https://github.com/ArtifexSoftware/jbig2dec/commit/f6d326878893dc92b45cbd18e25ab4d2b3a8db73 ----- -From f6d326878893dc92b45cbd18e25ab4d2b3a8db73 Mon Sep 17 00:00:00 2001 -From: Sebastian Rasmussen <sebras@gmail.com> -Date: Sun, 15 Sep 2019 18:12:31 +0200 -Subject: [PATCH] jbig2dec: Add overflow detection for IAID context size. - ---- - jbig2_arith_iaid.c | 13 +++++++++++-- - 1 file changed, 11 insertions(+), 2 deletions(-) - -diff --git a/jbig2_arith_iaid.c b/jbig2_arith_iaid.c -index 78dc830..bbc38a0 100644 ---- a/jbig2_arith_iaid.c -+++ b/jbig2_arith_iaid.c -@@ -44,9 +44,18 @@ struct _Jbig2ArithIaidCtx { - Jbig2ArithIaidCtx * - jbig2_arith_iaid_ctx_new(Jbig2Ctx *ctx, int SBSYMCODELEN) - { -- Jbig2ArithIaidCtx *result = jbig2_new(ctx, Jbig2ArithIaidCtx, 1); -- int ctx_size = 1 << SBSYMCODELEN; -+ Jbig2ArithIaidCtx *result; -+ size_t ctx_size; - -+ if (sizeof(ctx_size) * 8 <= SBSYMCODELEN) -+ { -+ jbig2_error(ctx, JBIG2_SEVERITY_FATAL, -1, "requested IAID arithmetic coding state size too large"); -+ return NULL; -+ } -+ -+ ctx_size = 1 << SBSYMCODELEN; -+ -+ result = jbig2_new(ctx, Jbig2ArithIaidCtx, 1); - if (result == NULL) { - jbig2_error(ctx, JBIG2_SEVERITY_FATAL, -1, "failed to allocate IAID arithmetic coding state"); - return NULL; |