Messages in this thread | | | Date | Fri, 04 Jan 2013 19:48:14 +0100 | From | Paolo Bonzini <> | Subject | Ping^2 Re: [PATCH v3 0/2] add per-device sysfs knob to enable unrestricted, unprivileged SG_IO |
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Il 17/12/2012 15:27, Paolo Bonzini ha scritto: > Il 13/11/2012 18:25, Paolo Bonzini ha scritto: >> > Privilege restrictions for SG_IO right now apply without distinction to >> > all devices, based on the single capability CAP_SYS_RAWIO. This is a very >> > broad capability, and makes it difficult to give SG_IO access to trusted >> > clients that need access to persistent reservations, trim/discard, or >> > vendor-specific commands. One problem here is that CAP_SYS_RAWIO allows >> > to escape a partition and issue commands that affect the full disk, >> > thus making DAC almost useless. >> > >> > For simplicity, this series attempts to solve one case only: you want >> > to pass through almost everything, but still run as confined as possible. >> > This is for example the case for virtualization, where more complex >> > filtering can be done just as easily in userspace, in the virtual >> > machine monitor. (This does mean the filter can be subverted if the >> > guest can escape the QEMU jail, but a more generic approach involving >> > a bitmap was NACKed). >> > >> > Ok for 3.8? > Ping... Jens, I haven't seen any pull request for 3.8 from you. Are > these patches on your radar? Tejun acked both of them.
Ping^2.
Paolo
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