Incorrect access control in the getDdnsStatus function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain DDNS runtime status and public IP information via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Incorrect access control in the getStationMacByIp function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain a client MAC address via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Incorrect access control in the getWiFiWpsCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain WPS configuration, including the current PIN, via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Incorrect access control in the getIptvCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain IPTV and IGMP configuration information via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Incorrect access control in the getGenerateWiFiWpsPin function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to generate and retrieve a new WPS PIN via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Incorrect access control in the getStaticDhcpRules function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain static DHCP reservation rules via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Incorrect access control in the getDdnsCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain DDNS configuration, including domain, username, and password, via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Incorrect access control in the getWiFiAdvancedCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain advanced wireless settings via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

mm: mglru: fix stale batch updates after memcg reparenting

In the Linux kernel, the following vulnerability has been resolved: mm: mglru: fix stale batch updates after memcg reparenting The mglru page table walker batches per-generation size deltas in walk->nr_pages while walking page tables without holding the lruvec lock. The reset_batch_size() later folds those deltas into walk->lruvec under the lruvec lock. The page table walker can run concurrently with the memcg reparenting path as follows: CPU0 CPU1 ==== ==== walk_mm --> walk_page_range --> update_batch_size --> walk->nr_pages += delta mem_cgroup_css_offline --> memcg_reparent_objcgs --> lock lruvec lru_gen_reparent_memcg --> reparent child folios to parent unlock lruvec lock lruvec reset_batch_size --> child lrugen->nr_pages += delta This will trigger the following warning in lru_gen_exit_memcg(): VM_WARN_ON_ONCE(memchr_inv(lruvec->lrugen.nr_pages, 0, sizeof(lruvec->lrugen.nr_pages))); And the user-visible impact of underestimated nr_pages in MGLRU was premature OOMs because MGLRU does not try to reclaim memory when nr_pages reaches zero, but there are still more pages. To fix it, make reset_batch_size() check CSS_DYING under RCU before flushing the pending batch. A non-dying memcg keeps the original lruvec stable against RCU-delayed offlining; a dying memcg redirects the deltas to the first non-dying ancestor.

Incorrect access control in the informSlaveUpdate function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to trigger mesh slave update coordination via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Incorrect access control in the getMeshPortalTable function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain mesh portal table information via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Incorrect access control in the getApWiFiSchCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain AP-specific Wi-Fi scheduling rules via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Incorrect access control in the getCrpcConfig function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain cloud remote-control status and URL information via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Incorrect access control in the getPasswordCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain the administrative username via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Incorrect access control in the getParentalRules function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain parental-control rules via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Incorrect access control in the getCrpcCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain cloud remote-control status and URL information via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Unauthenticated WAN Information Disclosure via getWanInfo in TOTOLINK T6 Router

Incorrect access control in the getWanInfo function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain WAN information returned by the endpoint via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Incorrect access control in the getDiagnosisCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain diagnostic configuration and ping log contents via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Incorrect access control in the getSmartQosCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain Smart QoS configuration and rules via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Incorrect access control in the getMacFilterRules function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain MAC filter rules via sending a crafted POST request to /cgi-bin/cstecgi.cgi.