{"id":25916,"date":"2026-09-18T04:32:04","date_gmt":"2026-09-17T20:32:04","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-93057"},"modified":"2026-09-18T04:32:04","modified_gmt":"2026-09-17T20:32:04","slug":"cve-2026-93057","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-93057","title":{"rendered":"CVE-2026-93057 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: core: Avoi"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>scsi: ufs: core: Avoid possible memory reclaim deadlock in TX EQTR context<\/p>\n<p>TX EQTR may run while devfreq gear scaling has quiesced the UFS<br \/>\ntagset. In that context, functions ufshcd_tx_eqtr(), __ufshcd_tx_eqtr()<br \/>\nand ufs_qcom_get_rx_fom() allocate memory with GFP_KERNEL. If direct<br \/>\nreclaim is triggered, reclaim\/writeback can depend on I\/O to UFS<br \/>\ndevice. Because the queue is quiesced, this can cause deadlock.<\/p>\n<p>Use memalloc_noio_save\/restore() in ufshcd_tx_eqtr() to cover all<br \/>\nallocations in the TX EQTR call tree, including:<\/p>\n<p> &#8211; params-&gt;eqtr_record in ufshcd_tx_eqtr()<\/p>\n<p> &#8211; eqtr_data in __ufshcd_tx_eqtr()<\/p>\n<p> &#8211; params in ufs_qcom_get_rx_fom()<\/p>\n<p>This is preferred over tagging individual call sites with GFP_NOIO, as it<br \/>\nautomatically covers any future allocations added anywhere in the call tree<br \/>\nwithout requiring each caller to be aware of this constraint.<\/p>\n<p>[mkp: fix label as suggested by Bart]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>scsi: ufs: core: Avoid possible memory reclaim deadlock in TX EQTR context<\/p>\n<p>TX EQTR may run while devfreq gear scaling has quiesced<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25916","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25916","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=25916"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25916"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25916"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}