In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
accel\/rocket: Fix error path handling in rocket_job_run()<\/p>\n
In rocket_job_run(), after taking an extra fence reference for
\njob->done_fence via dma_fence_get(), the error paths have three bugs:<\/p>\n
– The dma_fence reference held by job->done_fence is never released,
\n causing a reference leak.
\n– pm_runtime_get_sync() increments the usage counter even on failure,
\n but the error path does not decrement it, leaking the runtime PM
\n reference and preventing the NPU from suspending.
\n– A valid but unsignaled fence is returned to the DRM scheduler,
\n which triggers WARN(“Fence … released with pending signals!”)
\n when the scheduler drops its reference.<\/p>\n
Fix by replacing pm_runtime_get_sync() with pm_runtime_resume_and_get()
\nwhich auto-balances the usage counter on failure, releasing both fence
\nreferences on error, and returning ERR_PTR(ret) instead of the
\nunsignaled fence.<\/p>\n
[tomeu: Refactored error paths to use consolidated goto labels]<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
accel\/rocket: Fix error path handling in rocket_job_run()<\/p>\n
In rocket_job_run(), after taking an extra fence reference for
\njob->done<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-21512","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/21512","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=21512"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21512"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21512"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}