len0rd/rockbox
1
0
Fork 1
mirror of https://github.com/Rockbox/rockbox.git synced 2025-10-13 10:07:38 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

metadata: opus, vorbis, speex: Fix 0 is supplied as base64 char when parsing album art metadata

Browse source 
For some reason it caused a crash on asan enabled simulator builds but worked fine otherwise.

Fixup for 0847bcc1 and ac8714dd

Change-Id: Iff1c2779d5fa6889c743cdccd8e1feaf55684394
This commit is contained in:
Roman Artiukhin 2025-03-28 13:35:06 +02:00 • committed by Solomon Peachy
parent b6f8f31b7c
commit 849e8abe8d
1 changed files with 5 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

10
lib/rbcodec/metadata/vorbis.c
View file

@ -326,14 +326,14 @@ size_t base64_decode(const char *in, size_t in_len, unsigned char *out)
}
break;
}
int index = in[i] - B64_START_CHAR;
if (index < 0 || index >= (int)ARRAYLEN(b64_codes))
#ifdef SIMULATOR
if (index < 0 || index >= (int)ARRAYLEN(b64_codes) || b64_codes[index] < 0)
{
out[len] = '\0';
DEBUGF("Invalid base64 char: '%c', char code: %i.\n", in[i], in[i]);
break;
}
#endif
val = (val << 6) | b64_codes[index];
if ((++i & 3) == 0)
@ -429,7 +429,7 @@ long read_vorbis_tags(int fd, struct mp3entry *id3,
int after_block_pos = lseek(fd, 0, SEEK_CUR);
char* buf = id3->path;
size_t outlen = base64_decode(buf, MIN(read_len, (int32_t) sizeof(id3->path)), buf);
size_t outlen = base64_decode(buf, MIN(read_len, (int32_t) sizeof(id3->path) - 1), buf);
int picframe_pos;
parse_flac_album_art(buf, outlen, &id3->albumart.type, &picframe_pos);