In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
scsi: qla2xxx: Fix FCE trace use-after-free during firmware dump<\/p>\n
qla2x00_free_fce_trace() freed and cleared ha->fce while holding only
\nfce_mutex. The firmware-dump consumers qla27xx_fwdt_entry_t264() and
\nqla25xx_copy_fce() read ha->fce (NULL check followed by a copy of the
\nbuffer) under hardware_lock and never take fce_mutex. A debugfs FCE
\ndisable could therefore free the DMA buffer between a dump’s NULL check
\nand its copy, resulting in a use-after-free.<\/p>\n
Unpublish ha->fce under hardware_lock, then release the lock and free
\nthe DMA buffer (dma_free_coherent() may sleep). A concurrent dump either
\ncompletes its check and copy with the buffer still valid, or observes
\nha->fce == NULL and skips it.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
scsi: qla2xxx: Fix FCE trace use-after-free during firmware dump<\/p>\n
qla2x00_free_fce_trace() freed and cleared ha->fce while holding <\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-24540","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/24540","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=24540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}