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-rw-r--r--src/libsystemd-id128/sd-id128.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libsystemd-id128/sd-id128.c b/src/libsystemd-id128/sd-id128.c
index 4286ae7d14..68c4987149 100644
--- a/src/libsystemd-id128/sd-id128.c
+++ b/src/libsystemd-id128/sd-id128.c
@@ -170,6 +170,9 @@ _public_ int sd_id128_get_boot(sd_id128_t *ret) {
for (j = 0, p = buf; j < 16; j++) {
int a, b;
+ if (p >= buf + k)
+ return -EIO;
+
if (*p == '-')
p++;