musl - musl - an implementation of the standard library for Linux-based systems

diff --git a/src/regex/regcomp.c b/src/regex/regcomp.c
index 5a7b53a7..fb24556e 100644
--- a/src/regex/regcomp.c
+++ b/src/regex/regcomp.c

@@ -636,6 +636,20 @@ static reg_errcode_t parse_bracket(tre_parse_ctx_t *ctx, const char *s)

goto parse_bracket_done;

if (neg.negate) {

+ /*

+ * With REG_NEWLINE, POSIX requires that newlines are not matched by

+ * any form of a non-matching list.

+ */

+ if (ctx->cflags & REG_NEWLINE) {

+ lit = tre_new_lit(&ls);

+ if (!lit) {

+ err = REG_ESPACE;

+ goto parse_bracket_done;

+ }

+ lit->code_min = '\n';

+ lit->code_max = '\n';

+ lit->position = -1;

+ }

/* Sort the array if we need to negate it. */

qsort(ls.a, ls.len, sizeof *ls.a, tre_compare_lit);

/* extra lit for the last negated range */