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| author | Hiroki Sato <hrs@FreeBSD.org> | 2014-10-11 20:46:06 +0000 |
|---|---|---|
| committer | Hiroki Sato <hrs@FreeBSD.org> | 2014-10-11 20:46:06 +0000 |
| commit | e58fde506cbd72593e9aa1956118e32058e8978c (patch) | |
| tree | 3a5a2770f168a3c56c1ae260bc9851eea6389fa5 /usr.sbin/rtsold | |
| parent | 37c7d4443c025122954a6c6447c88e21297c7a40 (diff) | |
| download | src-test2-e58fde506cbd72593e9aa1956118e32058e8978c.tar.gz src-test2-e58fde506cbd72593e9aa1956118e32058e8978c.zip | |
Fix buffer overrun.
MFC after: 1 day
Notes
Notes:
svn path=/head/; revision=272961
Diffstat (limited to 'usr.sbin/rtsold')
| -rw-r--r-- | usr.sbin/rtsold/rtsol.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/usr.sbin/rtsold/rtsol.c b/usr.sbin/rtsold/rtsol.c index c9b3d44158a8..118206a4bfcd 100644 --- a/usr.sbin/rtsold/rtsol.c +++ b/usr.sbin/rtsold/rtsol.c @@ -933,7 +933,8 @@ dname_labeldec(char *dst, size_t dlen, const char *src) dst_origin = dst; memset(dst, '\0', dlen); while (src && (len = (uint8_t)(*src++) & 0x3f) && - (src + len) <= src_last) { + (src + len) <= src_last && + (dst - dst_origin < (ssize_t)dlen)) { if (dst != dst_origin) *dst++ = '.'; warnmsg(LOG_DEBUG, __func__, "labellen = %zd", len); |