[Qemu-commits] [qemu/qemu] f73ade: seccomp: whitelist syscalls fallocate(), fadvise64...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/qemu/qemu
  Commit: f73adec7097ebdbc7168453e638735391a6f7112
      
https://github.com/qemu/qemu/commit/f73adec7097ebdbc7168453e638735391a6f7112
  Author: Philipp Gesang <address@hidden>
  Date:   2014-11-11 (Tue, 11 Nov 2014)

  Changed paths:
    M qemu-seccomp.c

  Log Message:
  -----------
  seccomp: whitelist syscalls fallocate(), fadvise64(), inotify_init1() and 
inotify_add_watch()

fallocate() is needed for snapshotting. If it isn’t whitelisted

    $ qemu-img create -f qcow2 x.qcow 1G
    Formatting 'x.qcow', fmt=qcow2 size=1073741824 encryption=off 
cluster_size=65536 lazy_refcounts=off
    $ qemu-kvm -display none -monitor stdio -sandbox on x.qcow
    QEMU 2.1.50 monitor - type 'help' for more information
    (qemu) savevm foo
    (qemu) loadvm foo

will fail, as will subsequent savevm commands on the same image.

fadvise64(), inotify_init1(), inotify_add_watch() are needed by
the SDL display. Without the whitelist entries,

    qemu-kvm -sandbox on

fails immediately.

In my tests fadvise64() is called 50--51 times per VM run. That
number seems independent of the duration of the run. fallocate(),
inotify_init1(), inotify_add_watch() are called once each.
Accordingly, they are added to the whitelist at a very low
priority.

Signed-off-by: Philipp Gesang <address@hidden>
Signed-off-by: Eduardo Otubo <address@hidden>


  Commit: 4cc47f8b3cc4f32586ba2f7fce1dc267da774a69
      
https://github.com/qemu/qemu/commit/4cc47f8b3cc4f32586ba2f7fce1dc267da774a69
  Author: Eduardo Otubo <address@hidden>
  Date:   2014-11-11 (Tue, 11 Nov 2014)

  Changed paths:
    M configure

  Log Message:
  -----------
  seccomp: change configure to avoid arm 32 to break

Current stable version of libseccomp (2.1.1) only supports i386 and
x86_64 archs correctly. This patch limits the usage of the syscall
filter for those archs and updates to the correct last version of
libseccomp.

This patch also fixes the bug:
https://bugs.launchpad.net/qemu/+bug/1363641

Signed-off-by: Eduardo Otubo <address@hidden>
Reviewed-by: Peter Maydell <address@hidden>
Acked-by: Paul Moore <address@hidden>


  Commit: 7f06a3b14df50d85118d8a7439dcd3229822e19c
      
https://github.com/qemu/qemu/commit/7f06a3b14df50d85118d8a7439dcd3229822e19c
  Author: Peter Maydell <address@hidden>
  Date:   2014-11-11 (Tue, 11 Nov 2014)

  Changed paths:
    M configure
    M qemu-seccomp.c

  Log Message:
  -----------
  Merge remote-tracking branch 'remotes/otubo/tags/pull-seccomp-20141111' into 
staging

seccomp branch queue

# gpg: Signature made Tue 11 Nov 2014 16:12:48 GMT using RSA key ID 12F8BD2F
# gpg: Can't check signature: public key not found

* remotes/otubo/tags/pull-seccomp-20141111:
  seccomp: change configure to avoid arm 32 to break
  seccomp: whitelist syscalls fallocate(), fadvise64(), inotify_init1() and 
inotify_add_watch()

Signed-off-by: Peter Maydell <address@hidden>


  Commit: e0d0041ec6dce1b8bfb3f66e9e4b8b9cd7e34806
      
https://github.com/qemu/qemu/commit/e0d0041ec6dce1b8bfb3f66e9e4b8b9cd7e34806
  Author: Peter Maydell <address@hidden>
  Date:   2014-11-11 (Tue, 11 Nov 2014)

  Changed paths:
    M VERSION

  Log Message:
  -----------
  Update version for v2.2.0-rc1 release

Signed-off-by: Peter Maydell <address@hidden>


Compare: https://github.com/qemu/qemu/compare/776346cd63e5...e0d0041ec6dc