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| author |   Yann Droneaud <ydroneaud@opteya.com> | 2013-08-24 22:14:07 +0200 |
|---|---|---|
| committer |   Gleb Natapov <gleb@redhat.com> | 2013-08-26 13:19:35 +0300 |
| commit | 24009b0549de563006705b9af8694fc8fc9a5aa1 (patch) | |
| tree | 57ff65347231974fc0621919529022464a7ed6e1 /block | |
| parent | Documentation/kvm : Add documentation on Hypercalls and features used for PV spinlock (diff) | |
| download | linux-dev-24009b0549de563006705b9af8694fc8fc9a5aa1.tar.xz linux-dev-24009b0549de563006705b9af8694fc8fc9a5aa1.zip | |
kvm: use anon_inode_getfd() with O_CLOEXEC flag
KVM uses anon_inode_get() to allocate file descriptors as part
of some of its ioctls. But those ioctls are lacking a flag argument
allowing userspace to choose options for the newly opened file descriptor.
In such case it's advised to use O_CLOEXEC by default so that
userspace is allowed to choose, without race, if the file descriptor
is going to be inherited across exec().
This patch set O_CLOEXEC flag on all file descriptors created
with anon_inode_getfd() to not leak file descriptors across exec().
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Link: http://lkml.kernel.org/r/cover.1377372576.git.ydroneaud@opteya.com
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions