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(parent: 2b14864) | patch
xen/blkfront: harden blkfront against event channel storms
authorJuergen Gross <jgross@suse.com>
Thu, 16 Dec 2021 07:24:08 +0000 (08:24 +0100)
committerJuergen Gross <jgross@suse.com>
Thu, 16 Dec 2021 07:24:08 +0000 (08:24 +0100)
commit0fd08a34e8e3b67ec9bd8287ac0facf8374b844a
treecac90aae17728c555b54aa0c279688aab0832ca9tree | snapshot
parent2b14864acbaaf03d9c01982e243a84632524c3accommit | diff
xen/blkfront: harden blkfront against event channel storms

The Xen blkfront driver is still vulnerable for an attack via excessive
number of events sent by the backend. Fix that by using lateeoi event
channels.

This is part of XSA-391

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
drivers/block/xen-blkfront.c diff | blob | history
Domain: System / Kernel;