Re: [PATCH 01/12] ipc: reorganize initialization of kern_ipc_perm.id

On Mon, 09 Jul 2018, Manfred Spraul wrote: ipc_addid() initializes kern_ipc_perm.id after having called ipc_idr_alloc(). Thus a parallel semop() or msgrcv() that uses ipc_obtain_object_idr() may see an uninitialized value. The patch moves all accesses to kern_ipc_perm.id under the

Re: [PATCH 01/12] ipc: reorganize initialization of kern_ipc_perm.id

On Mon, 09 Jul 2018, Manfred Spraul wrote: ipc_addid() initializes kern_ipc_perm.id after having called ipc_idr_alloc(). Thus a parallel semop() or msgrcv() that uses ipc_obtain_object_idr() may see an uninitialized value. The patch moves all accesses to kern_ipc_perm.id under the

[PATCH 01/12] ipc: reorganize initialization of kern_ipc_perm.id

ipc_addid() initializes kern_ipc_perm.id after having called ipc_idr_alloc(). Thus a parallel semop() or msgrcv() that uses ipc_obtain_object_idr() may see an uninitialized value. The patch moves all accesses to kern_ipc_perm.id under the spin_lock(). The issues is related to the finding of

[PATCH 01/12] ipc: reorganize initialization of kern_ipc_perm.id

ipc_addid() initializes kern_ipc_perm.id after having called ipc_idr_alloc(). Thus a parallel semop() or msgrcv() that uses ipc_obtain_object_idr() may see an uninitialized value. The patch moves all accesses to kern_ipc_perm.id under the spin_lock(). The issues is related to the finding of