In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
nfc: nci: fix use of uninitialized memory in CORE_INIT_RSP parsing<\/p>\n
nci_core_init_rsp_packet_v1() and nci_core_init_rsp_packet_v2() parse
\nthe CORE_INIT_RSP packet without validating that the skb contains
\nenough data. A malformed response (e.g. injected via virtual_ncidev)
\ncan declare a large num_supported_rf_interfaces while providing
\ninsufficient data, causing reads of uninitialized slab memory. This
\nis later used in nci_init_complete_req(), triggering a KMSAN
\nuninit-value warning.<\/p>\n
Add skb length checks before accessing packet fields:
\n– Validate the skb has at least 1 byte for the status field.
\n– Validate the skb can hold the fixed-size header before parsing.
\n– In v2, bounds-check each variable-length rf_interface entry and its
\n extension parameters within the parsing loop.
\n– In v1, verify the skb is large enough for both the variable-length
\n rf_interfaces array and the trailing rsp_2 structure.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
nfc: nci: fix use of uninitialized memory in CORE_INIT_RSP parsing<\/p>\n
nci_core_init_rsp_packet_v1() and nci_core_init_rsp_packet_v2()<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25630","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25630","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=25630"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25630"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25630"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}