From: JP Abgrall Date: Tue, 28 Aug 2012 23:53:32 +0000 (-0700) Subject: netfilter: xt_qtaguid: report only uid tags to non-privileged processes X-Git-Tag: firefly_0821_release~8487 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=fe2ebf069142d918df14ab52feac89d9b6291d03;p=firefly-linux-kernel-4.4.55.git netfilter: xt_qtaguid: report only uid tags to non-privileged processes In the past, a process could only see its own stats (uid-based summary, and details). Now we allow any process to see other UIDs uid-based stats, but still hide the detailed stats. Change-Id: I7666961ed244ac1d9359c339b048799e5db9facc Signed-off-by: JP Abgrall --- diff --git a/net/netfilter/xt_qtaguid.c b/net/netfilter/xt_qtaguid.c index f6d4cfc05f3c..ea716b31e2af 100644 --- a/net/netfilter/xt_qtaguid.c +++ b/net/netfilter/xt_qtaguid.c @@ -2588,8 +2588,9 @@ static int pp_stats_line(struct proc_print_info *ppi, int cnt_set) } else { tag_t tag = ppi->ts_entry->tn.tag; uid_t stat_uid = get_uid_from_tag(tag); - - if (!can_read_other_uid_stats(stat_uid)) { + /* Detailed tags are not available to everybody */ + if (get_atag_from_tag(tag) + && !can_read_other_uid_stats(stat_uid)) { CT_DEBUG("qtaguid: stats line: " "%s 0x%llx %u: insufficient priv " "from pid=%u tgid=%u uid=%u\n",