From 881fd738b48590edde09620c565aa2c2865c05bb Mon Sep 17 00:00:00 2001 From: Mark Johnston Date: Tue, 1 Dec 2020 15:11:16 +0000 Subject: [PATCH] MFC r367987: pf: Make tag hashing more robust --- sys/netpfil/pf/pf_ioctl.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/sys/netpfil/pf/pf_ioctl.c b/sys/netpfil/pf/pf_ioctl.c index 559bb7841df..4a091041a76 100644 --- a/sys/netpfil/pf/pf_ioctl.c +++ b/sys/netpfil/pf/pf_ioctl.c @@ -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 -- 2.45.0