diff options
Diffstat (limited to 'drivers/base/core.c')
| -rw-r--r-- | drivers/base/core.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c index 20da3ad1696b..28b808c73e8e 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -2007,6 +2007,8 @@ create_syslog_header(const struct device *dev, char *hdr, size_t hdrlen) return 0; pos += snprintf(hdr + pos, hdrlen - pos, "SUBSYSTEM=%s", subsys); + if (pos >= hdrlen) + goto overflow; /* * Add device identifier DEVICE=: @@ -2038,7 +2040,14 @@ create_syslog_header(const struct device *dev, char *hdr, size_t hdrlen) "DEVICE=+%s:%s", subsys, dev_name(dev)); } + if (pos >= hdrlen) + goto overflow; + return pos; + +overflow: + dev_WARN(dev, "device/subsystem name too long"); + return 0; } int dev_vprintk_emit(int level, const struct device *dev, |