diff options
Diffstat (limited to 'meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2020-20446.patch')
-rw-r--r-- | meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2020-20446.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2020-20446.patch b/meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2020-20446.patch new file mode 100644 index 0000000000..4fe80cffa1 --- /dev/null +++ b/meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2020-20446.patch @@ -0,0 +1,35 @@ +From 073bad2fcae5be78c11a1623a20319107dfae9f8 Mon Sep 17 00:00:00 2001 +From: Michael Niedermayer <michael@niedermayer.cc> +Date: Fri, 28 May 2021 20:18:25 +0200 +Subject: [PATCH 1/5] avcodec/aacpsy: Avoid floating point division by 0 of + norm_fac + +Fixes: Ticket7995 +Fixes: CVE-2020-20446 + +Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> + +CVE: CVE-2020-20446 +Upstream-Status: Backport [223b5e8ac9f6461bb13ed365419ec485c5b2b002] + +Signed-off-by: Tony Tascioglu <tony.tascioglu@windriver.com> +--- + libavcodec/aacpsy.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/libavcodec/aacpsy.c b/libavcodec/aacpsy.c +index fca692cb15..bd444fecdc 100644 +--- a/libavcodec/aacpsy.c ++++ b/libavcodec/aacpsy.c +@@ -794,7 +794,7 @@ static void psy_3gpp_analyze_channel(FFPsyContext *ctx, int channel, + + if (pe < 1.15f * desired_pe) { + /* 6.6.1.3.6 "Final threshold modification by linearization" */ +- norm_fac = 1.0f / norm_fac; ++ norm_fac = norm_fac ? 1.0f / norm_fac : 0; + for (w = 0; w < wi->num_windows*16; w += 16) { + for (g = 0; g < num_bands; g++) { + AacPsyBand *band = &pch->band[w+g]; +-- +2.32.0 + |