In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
ALSA: ump: do not touch legacy_rmidi before it exists<\/p>\n
snd_ump_parse_endpoint() sets ump->parsed on every exit, including
\nerror, before the caller attaches the legacy rawmidi device.
\nump_handle_ep_name_msg() then treats parsed as “legacy_rmidi is live”
\nand calls ump_legacy_set_rawmidi_name(), which snprintf()s into
\nump->legacy_rmidi->name. If a UMP packet arrives in that window
\n(IRQ path from snd_ump_receive), legacy_rmidi is still NULL
\n(KASAN null-ptr-deref in snprintf).<\/p>\n
Guard the legacy helpers. parsed only means endpoint info was
\nparsed, not that legacy_rmidi exists.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
ALSA: ump: do not touch legacy_rmidi before it exists<\/p>\n
snd_ump_parse_endpoint() sets ump->parsed on every exit, including
\nerror, be<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-29241","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/29241","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=29241"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29241"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}