Le 26.08.2013 09:39, Paolo Bonzini a écrit :
Il 25/08/2013 17:04, Alexander Graf ha scritto:
On 24.08.2013, at 21:14, Yann Droneaud wrote:
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 Dro
Il 26/08/2013 10:23, Yann Droneaud ha scritto:
>
> Sounds a lot like InfiniBand subsystem behavor: IB file descriptors
> are of no use accross exec() since memory mappings tied to those fds
> won't be available in the new process:
>
> https://lkml.org/lkml/2013/7/8/380
> http://mid.gmane.org/f585
Il 25/08/2013 17:04, Alexander Graf ha scritto:
>
> On 24.08.2013, at 21:14, Yann Droneaud wrote:
>
>> 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
On 24.08.2013, at 21:14, Yann Droneaud wrote:
> 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
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
