From 52db8039f54672abe6a6da5fb107fa52aca42547 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sun, 23 Aug 2009 15:22:00 -0700 Subject: [PATCH] Recognize ill-formed { } expressions in regcomp. --- ChangeLog | 3 +++ posix/regcomp.c | 2 +- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/ChangeLog b/ChangeLog index a42e20b0be..37cd868c19 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,8 @@ 2009-08-23 Ulrich Drepper + * posix/regcomp.c (parse_dup_op): Verify the expression is correctly + terminated. + * posix/unistd.h: Define _POSIX_VERSION and _POSIX2_* correctly if older POSIX versions are selected. diff --git a/posix/regcomp.c b/posix/regcomp.c index 4843cfea33..446fed5445 100644 --- a/posix/regcomp.c +++ b/posix/regcomp.c @@ -2481,7 +2481,7 @@ parse_dup_op (bin_tree_t *elem, re_string_t *regexp, re_dfa_t *dfa, return elem; } - if (BE (end != -1 && start > end, 0)) + if (BE ((end != -1 && start > end) || token->type != OP_CLOSE_DUP_NUM, 0)) { /* First number greater than second. */ *err = REG_BADBR; -- 2.43.5