90d899289e
This is an automated DistroBaker update from upstream sources. If you do not know what this is about or would like to opt out, contact the OSCI team. Source: https://src.fedoraproject.org/rpms/flac.git#73f4071b023b2cfdde017aaf32b75beeafb5592b
24 lines
805 B
Diff
24 lines
805 B
Diff
commit 2e7931c27eb15e387da440a37f12437e35b22dd4
|
|
Author: Erik de Castro Lopo <erikd@mega-nerd.com>
|
|
Date: Mon Oct 7 12:55:58 2019 +1100
|
|
|
|
libFLAC/bitreader.c: Fix out-of-bounds read
|
|
|
|
Credit: Oss-Fuzz
|
|
Issue: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17069
|
|
Testcase: fuzzer_decoder-5670265022840832
|
|
|
|
diff --git a/src/libFLAC/bitreader.c b/src/libFLAC/bitreader.c
|
|
index 5e4b5918..3df4d02c 100644
|
|
--- a/src/libFLAC/bitreader.c
|
|
+++ b/src/libFLAC/bitreader.c
|
|
@@ -869,7 +869,7 @@ incomplete_lsbs:
|
|
cwords = br->consumed_words;
|
|
words = br->words;
|
|
ucbits = FLAC__BITS_PER_WORD - br->consumed_bits;
|
|
- b = br->buffer[cwords] << br->consumed_bits;
|
|
+ b = cwords < br->capacity ? br->buffer[cwords] << br->consumed_bits : 0;
|
|
} while(cwords >= words && val < end);
|
|
}
|
|
|