In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
hwmon: Fix potential UAF in pec_store<\/p>\n
Sashiko reports:<\/p>\n
In pec_store(), a guard(mutex)(&hwdev->lock) is taken. If the chip write
\noperation returns an error other than -EOPNOTSUPP, the code jumps to the
\nput label, which calls put_device(hdev). If this drops the final reference,
\nthe device is freed. When the function then returns, the guard cleanup
\nfunction runs and attempts to unlock the freed mutex.<\/p>\n
Use scoped_guard() instead of guard() to avoid the problem.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
hwmon: Fix potential UAF in pec_store<\/p>\n
Sashiko reports:<\/p>\n
In pec_store(), a guard(mutex)(&hwdev->lock) is taken. If the chip write
\no<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-29155","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/29155","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=29155"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29155"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29155"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}