The netback driver in Xen, when using certain Linux versions that do
not allow sleeping in softirq context, allows local guest
administrators to cause a denial of service ("scheduling while atomic"
error and host crash) via a malformed packet, which causes a mutex to
be taken when trying to disable the interface.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20140324 Re: Xen Security Advisory 90 - Linux netback crash trying to disable due to malformed packet
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