{"id":25927,"date":"2026-09-18T04:32:05","date_gmt":"2026-09-17T20:32:05","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-93068"},"modified":"2026-09-18T04:32:05","modified_gmt":"2026-09-17T20:32:05","slug":"cve-2026-93068","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-93068","title":{"rendered":"CVE-2026-93068 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ndrm\/amd\/display: Fix"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/amd\/display: Fix DM I2C teardown race<\/p>\n<p>DM I2C adapters can remain visible to userspace while DM teardown is<br \/>\nalready in progress. A concurrent i2c-dev transfer may then enter<br \/>\namdgpu_dm_i2c_xfer() after the backing DM state has been torn down,<br \/>\nleading to a NULL pointer dereference.<\/p>\n<p>Create a devres group around the DM I2C adapter lifetime and release it<br \/>\nat the start of dm_hw_fini(), before HPD, IRQ, and DM state are torn<br \/>\ndown. This removes the I2C adapters first and waits for in-flight users<br \/>\nto drain before the structures used by amdgpu_dm_i2c_xfer() disappear.<\/p>\n<p>This fixes a teardown ordering race seen during device removal:<\/p>\n<p>BUG: kernel NULL pointer dereference<br \/>\nRIP: amdgpu_dm_i2c_xfer+0x122\/0x1c0 [amdgpu]<br \/>\nCall Trace:<br \/>\n__i2c_transfer<br \/>\ni2c_transfer<br \/>\ni2cdev_ioctl_rdwr<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/amd\/display: Fix DM I2C teardown race<\/p>\n<p>DM I2C adapters can remain visible to userspace while DM teardown is<br \/>\nalready in progress<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25927","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25927","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=25927"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25927"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25927"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}