In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
wifi: ath12k: fix out-of-bounds clear_bit in ath12k_mac_dp_peer_cleanup()<\/p>\n
ath12k_mac_dp_peer_cleanup() clears the ML peer ID slot on the
\nfree_ml_peer_id_map bitmap by indexing it with dp_peer->peer_id. That is
\nwrong: dp_peer->peer_id for an MLO peer always carries the
\nATH12K_PEER_ML_ID_VALID bit (BIT(13)), so clear_bit() is invoked with
\nindex >= 0x2000, which is far outside the bitmap of ATH12K_MAX_MLO_PEERS
\n(256) bits and corrupts memory adjacent to ah->free_ml_peer_id_map. The
\nintended bitmap entry also never gets cleared, so subsequent
\nath12k_peer_ml_alloc() calls eventually run out of IDs.<\/p>\n
The ID without the VALID bit is what ath12k_peer_ml_alloc() returned and
\nis stored in ahsta->ml_peer_id. Use that instead.<\/p>\n
While there, also reset ahsta->ml_peer_id to ATH12K_MLO_PEER_ID_INVALID so
\nthe bitmap and ahsta->ml_peer_id stay in sync.<\/p>\n
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00302-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.115823.3<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
wifi: ath12k: fix out-of-bounds clear_bit in ath12k_mac_dp_peer_cleanup()<\/p>\n
ath12k_mac_dp_peer_cleanup() clears the ML peer ID slot <\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-8848","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/8848","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8848"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8848"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}