diff options
| author | Janne Grunau <janne-vlc@jannau.net> | 2018-10-02 22:16:16 +0300 |
|---|---|---|
| committer | Janne Grunau <janne-vlc@jannau.net> | 2018-10-03 16:31:26 +0300 |
| commit | a537c5acd9c4bd3b37c83b5783b3f3414fdf907a (patch) | |
| tree | 975a70682a61c1a6750c4d26ede7d7b3f1212a39 | |
| parent | 4ec4605bd06d42d057ea5014c08fd09b388c2d97 (diff) | |
get_bits: avoid infinite loops in get_vlc() at EOF
Fixes a fuzzing time out with timeout-e372a93d3be3f703bb7a49ce3d92c72d06f3b9cb.
| -rw-r--r-- | src/getbits.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/getbits.c b/src/getbits.c index 9eb0759..9ce629d 100644 --- a/src/getbits.c +++ b/src/getbits.c @@ -89,8 +89,9 @@ unsigned get_uniform(GetBits *const c, const unsigned n) { unsigned get_vlc(GetBits *const c) { int n_bits = 0; - while (!get_bits(c, 1)) n_bits++; - if (n_bits >= 32) return 0xFFFFFFFFU; + while (!get_bits(c, 1)) + if (++n_bits == 32) + return 0xFFFFFFFFU; return ((1 << n_bits) - 1) + get_bits(c, n_bits); } |