In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
wifi: libipw: reject too-short association responses<\/p>\n
libipw_handle_assoc_resp() reads the capability, status and aid fields
\nof the 30-byte association response prefix and then computes the
\ninformation element length as<\/p>\n
\tstats->len – sizeof(*frame)<\/p>\n
stats->len is a u16 and sizeof() has type size_t, so the subtraction is
\nevaluated as size_t and wraps instead of going negative. Truncating
\nthat to the u16 length parameter of libipw_parse_info_param() turns a
\nframe shorter than the fixed fields into a length near 64 KiB, and the
\nparser then reads past the receive buffer.<\/p>\n
Both the ipw2100 and ipw2200 management receive paths reach this
\nfunction having established only that the frame carries the generic
\n24-byte three-address header.<\/p>\n
Reject the frame before any fixed field is touched.<\/p>\n
Found by an AI-assisted review of length arithmetic in management frame
\nparsers. Verified with a KUnit case under Generic KASAN on arm64 under
\nQEMU; I do not have the hardware, so it is not tested on a real device.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
wifi: libipw: reject too-short association responses<\/p>\n
libipw_handle_assoc_resp() reads the capability, status and aid fields
\nof the<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-33417","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/33417","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=33417"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=33417"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=33417"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}