ash: fix handling of bashism $'xxx' with high-bit chars. Closes 9236

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/shell/ash.c b/shell/ash.c
index a885514d3..d96e56851 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -11229,6 +11229,9 @@ readtoken1(int c, int syntax, char *eofmark, int striptabs)
                                 c = decode_dollar_squote();
                                 if (c & 0x100) {
                                         USTPUTC('\\', out);
+                                        if (eofmark == NULL || dblquote)
+                                                /* Or else this SEGVs: $'\<0x82>' */
+                                                USTPUTC(CTLESC, out);
                                         c = (unsigned char)c;
                                 }
                         }