| Message ID | 20170830062130.GD27329@fergus.ozlabs.ibm.com |
|---|---|
| State | Accepted |
| Headers | show |
| Series | [GIT,PULL] Please pull my kvm-ppc-fixes branch | expand |
2017-08-30 16:21+1000, Paul Mackerras: > Paolo, > > Please do a pull from my kvm-ppc-fixes branch to get one more commit > for 4.13. It adds mutual exclusion between list_add_rcu and > list_del_rcu calls on the kvm->arch.spapr_tce_tables list. Without > this, userspace could potentially trigger corruption of the list and > cause a host crash or worse. Both Paolo and I had a vacation the week before final 4.13, so I merged this for 3.14-rc1, sorry. -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 08/09/2017 16:37, Radim Krčmář wrote: > 2017-08-30 16:21+1000, Paul Mackerras: >> Paolo, >> >> Please do a pull from my kvm-ppc-fixes branch to get one more commit >> for 4.13. It adds mutual exclusion between list_add_rcu and >> list_del_rcu calls on the kvm->arch.spapr_tce_tables list. Without >> this, userspace could potentially trigger corruption of the list and >> cause a host crash or worse. > > Both Paolo and I had a vacation the week before final 4.13, so I merged > this for 3.14-rc1, sorry. Pi is always a nice source of typos. I guess it needs to go in 4.13-stable too? Paul, can you forward it to stable@vger.kernel.org and include the "Fixes" information (which, by the way, should probably be almost always included in -rc patches)? Thanks, Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Sat, Sep 09, 2017 at 03:38:31PM +0200, Paolo Bonzini wrote: > On 08/09/2017 16:37, Radim Krčmář wrote: > > 2017-08-30 16:21+1000, Paul Mackerras: > >> Paolo, > >> > >> Please do a pull from my kvm-ppc-fixes branch to get one more commit > >> for 4.13. It adds mutual exclusion between list_add_rcu and > >> list_del_rcu calls on the kvm->arch.spapr_tce_tables list. Without > >> this, userspace could potentially trigger corruption of the list and > >> cause a host crash or worse. > > > > Both Paolo and I had a vacation the week before final 4.13, so I merged > > this for 3.14-rc1, sorry. > > Pi is always a nice source of typos. 8-) > I guess it needs to go in 4.13-stable too? Paul, can you forward it to > stable@vger.kernel.org and include the "Fixes" information (which, by > the way, should probably be almost always included in -rc patches)? Yes, I'll forward it and the previous patch in this area, with fixes tags. Paul. -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Paolo, Please do a pull from my kvm-ppc-fixes branch to get one more commit for 4.13. It adds mutual exclusion between list_add_rcu and list_del_rcu calls on the kvm->arch.spapr_tce_tables list. Without this, userspace could potentially trigger corruption of the list and cause a host crash or worse. Thanks, Paul. The following changes since commit 47c5310a8dbe7c2cb9f0083daa43ceed76c257fa: KVM: PPC: Book3S: Fix race and leak in kvm_vm_ioctl_create_spapr_tce() (2017-08-25 11:08:57 +0200) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc kvm-ppc-fixes for you to fetch changes up to edd03602d97236e8fea13cd76886c576186aa307: KVM: PPC: Book3S HV: Protect updates to spapr_tce_tables list (2017-08-30 14:59:31 +1000) ---------------------------------------------------------------- Paul Mackerras (1): KVM: PPC: Book3S HV: Protect updates to spapr_tce_tables list arch/powerpc/kvm/book3s_64_vio.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html