In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
media: v4l2-ctrls: validate AV1 tile counts<\/p>\n
The stateless AV1 decoders use tile_info.tile_cols and tile_rows as loop
\nbounds and as indices into the mi_*_starts[] and *_in_sbs_minus_1[]
\narrays, as the divisor for context_update_tile_id, and their product
\nbounds the per-tile descriptor buffers, but std_validate_compound() does
\nnot bound these u8 fields. Reject a V4L2_CTRL_TYPE_AV1_FRAME whose
\ntile_cols or tile_rows exceeds V4L2_AV1_MAX_TILE_COLS \/ _ROWS, or whose
\nproduct exceeds V4L2_AV1_MAX_TILE_COUNT. A zero tile count is left to the
\nconsuming driver so the zero-initialised control that existing userspace
\nsubmits is still accepted.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
media: v4l2-ctrls: validate AV1 tile counts<\/p>\n
The stateless AV1 decoders use tile_info.tile_cols and tile_rows as loop
\nbounds and as<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-29007","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/29007","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=29007"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29007"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29007"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}