Author: markj
Date: Tue Dec 1 15:11:16 2020
New Revision: 368232
URL: https://svnweb.freebsd.org/changeset/base/368232
Log:
MFC r367987:
pf: Make tag hashing more robust
Modified:
stable/12/sys/netpfil/pf/pf_ioctl.c
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/netpfil/pf/pf_ioctl.c
==============================================================================
--- stable/12/sys/netpfil/pf/pf_ioctl.c Tue Dec 1 15:09:02 2020
(r368231)
+++ stable/12/sys/netpfil/pf/pf_ioctl.c Tue Dec 1 15:11:16 2020
(r368232)
@@ -513,8 +513,10 @@ pf_cleanup_tagset(struct pf_tagset *ts)
static uint16_t
tagname2hashindex(const struct pf_tagset *ts, const char *tagname)
{
+ size_t len;
- return (murmur3_32_hash(tagname, strlen(tagname), ts->seed) & ts->mask);
+ len = strnlen(tagname, PF_TAG_NAME_SIZE - 1);
+ return (murmur3_32_hash(tagname, len, ts->seed) & ts->mask);
}
static uint16_t
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