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| author | Antony Dovgal <tony2001@php.net> | 2012-11-11 22:37:04 +0400 |
|---|---|---|
| committer | Antony Dovgal <tony2001@php.net> | 2012-11-11 22:37:04 +0400 |
| commit | bb60122c2fe49985b35026ecc48ff6cf550fbac1 (patch) | |
| tree | 578b04449d14d3c46ac3350e5055523a543bb5cf | |
| parent | 065862a750a4c7b20d580b4e32a9df62b00b90a0 (diff) | |
| download | php-git-bb60122c2fe49985b35026ecc48ff6cf550fbac1.tar.gz | |
fix invalid read when trimming empty string
| -rw-r--r-- | ext/filter/filter_private.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/ext/filter/filter_private.h b/ext/filter/filter_private.h index daa688b4ac..6c26d98075 100644 --- a/ext/filter/filter_private.h +++ b/ext/filter/filter_private.h @@ -107,8 +107,10 @@ if (len < 1) { \ RETURN_VALIDATION_FAILED \ } \ - while (p[len-1] == ' ' || p[len-1] == '\t' || p[len-1] == '\r' || p[len-1] == '\v' || p[len-1] == '\n') { \ - len--; \ + if (len > 0) { \ + while (p[len-1] == ' ' || p[len-1] == '\t' || p[len-1] == '\r' || p[len-1] == '\v' || p[len-1] == '\n') { \ + len--; \ + } \ } \ } |