In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
usb: gadget: f_fs: Fix fence cleanup in ffs_dmabuf_transfer() error paths<\/p>\n
The error paths for endpoint-disabled (ESHUTDOWN) and request-allocation
\nfailure (ENOMEM) in ffs_dmabuf_transfer() jump to err_fence_put which
\ncalls dma_fence_put() on the fence. However, at that point the fence has
\nonly been kmalloc’d \u2014 dma_fence_init() has not been called yet, so the
\nrefcount and the fence ops are uninitialized. Calling dma_fence_put() on
\nsuch an object leads to undefined behavior.<\/p>\n
Use kfree() instead, since the fence is just a plain allocation at this
\nstage, and rename the label to err_fence_free to reflect the actual
\ncleanup action.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
usb: gadget: f_fs: Fix fence cleanup in ffs_dmabuf_transfer() error paths<\/p>\n
The error paths for endpoint-disabled (ESHUTDOWN) and re<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25978","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25978","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=25978"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25978"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}