In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
drm\/amdgpu\/ras: add ras_suspend callback and use it for cp_ecc_error_irq<\/p>\n
cp_ecc_error_irq is acquired in amdgpu_gfx_ras_late_init() but
\nreleased in gfx_v9_0_hw_fini(), so the put site has to query
\namdgpu_irq_enabled() because the get is skipped on SR-IOV VF.<\/p>\n
ras_late_init \/ ras_fini have no suspend counterpart, so move the
\nput to amdgpu_gfx_ras_suspend() \/ amdgpu_gfx_ras_fini() and add a
\nmatching ras_suspend callback that is invoked from
\namdgpu_ras_suspend() before disable_all_features(). The get and
\nput now sit in the same place and check the same condition (not
\nVF, funcs registered), no refcount querying needed.<\/p>\n
An active flag gates ras_fini so the
\nsuspend-then-unload-without-resume path falls into
\namdgpu_ras_block_late_fini_default() instead of double-releasing
\nwhat ras_suspend already cleaned up.<\/p>\n
Drop the cp_ecc_error_irq put from gfx_v9_0_hw_fini(). gfx_v8_0
\nmanages cp_ecc_error_irq locally and is unaffected; no other GFX
\ngeneration has this IRQ.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
drm\/amdgpu\/ras: add ras_suspend callback and use it for cp_ecc_error_irq<\/p>\n
cp_ecc_error_irq is acquired in amdgpu_gfx_ras_late_init(<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-28671","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/28671","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=28671"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28671"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28671"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}