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package/enlightenment: fix meson warning
[coffee/buildroot.git] / package / libvorbis / 0002-CVE-2017-14632-vorbis_analysis_header_out-Don-t-clea.patch
1 From c1c2831fc7306d5fbd7bc800324efd12b28d327f Mon Sep 17 00:00:00 2001
2 From: =?UTF-8?q?Guido=20G=C3=BCnther?= <agx@sigxcpu.org>
3 Date: Wed, 15 Nov 2017 18:22:59 +0100
4 Subject: [PATCH] CVE-2017-14632: vorbis_analysis_header_out: Don't clear opb
5  if not initialized
6
7 If the number of channels is not within the allowed range
8 we call oggback_writeclear altough it's not initialized yet.
9
10 This fixes
11
12     =23371== Invalid free() / delete / delete[] / realloc()
13     ==23371==    at 0x4C2CE1B: free (vg_replace_malloc.c:530)
14     ==23371==    by 0x829CA31: oggpack_writeclear (in /usr/lib/x86_64-linux-gnu/libogg.so.0.8.2)
15     ==23371==    by 0x84B96EE: vorbis_analysis_headerout (info.c:652)
16     ==23371==    by 0x9FBCBCC: ??? (in /usr/lib/x86_64-linux-gnu/sox/libsox_fmt_vorbis.so)
17     ==23371==    by 0x4E524F1: ??? (in /usr/lib/x86_64-linux-gnu/libsox.so.2.0.1)
18     ==23371==    by 0x4E52CCA: sox_open_write (in /usr/lib/x86_64-linux-gnu/libsox.so.2.0.1)
19     ==23371==    by 0x10D82A: open_output_file (sox.c:1556)
20     ==23371==    by 0x10D82A: process (sox.c:1753)
21     ==23371==    by 0x10D82A: main (sox.c:3012)
22     ==23371==  Address 0x68768c8 is 488 bytes inside a block of size 880 alloc'd
23     ==23371==    at 0x4C2BB1F: malloc (vg_replace_malloc.c:298)
24     ==23371==    by 0x4C2DE9F: realloc (vg_replace_malloc.c:785)
25     ==23371==    by 0x4E545C2: lsx_realloc (in /usr/lib/x86_64-linux-gnu/libsox.so.2.0.1)
26     ==23371==    by 0x9FBC9A0: ??? (in /usr/lib/x86_64-linux-gnu/sox/libsox_fmt_vorbis.so)
27     ==23371==    by 0x4E524F1: ??? (in /usr/lib/x86_64-linux-gnu/libsox.so.2.0.1)
28     ==23371==    by 0x4E52CCA: sox_open_write (in /usr/lib/x86_64-linux-gnu/libsox.so.2.0.1)
29     ==23371==    by 0x10D82A: open_output_file (sox.c:1556)
30     ==23371==    by 0x10D82A: process (sox.c:1753)
31     ==23371==    by 0x10D82A: main (sox.c:3012)
32
33 as seen when using the testcase from CVE-2017-11333 with
34 008d23b782be09c8d75ba8190b1794abd66c7121 applied. However the error was
35 there before.
36
37 Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
38 ---
39  lib/info.c | 1 +
40  1 file changed, 1 insertion(+)
41
42 diff --git a/lib/info.c b/lib/info.c
43 index 7bc4ea4..8d0b2ed 100644
44 --- a/lib/info.c
45 +++ b/lib/info.c
46 @@ -589,6 +589,7 @@ int vorbis_analysis_headerout(vorbis_dsp_state *v,
47    private_state *b=v->backend_state;
48  
49    if(!b||vi->channels<=0||vi->channels>256){
50 +    b = NULL;
51      ret=OV_EFAULT;
52      goto err_out;
53    }
54 -- 
55 2.11.0
56