On Wed, May 29, 2024 at 04:29:32PM +0800, Zenghui Yu wrote: > On 2021/10/6 19:23, Paolo Bonzini wrote: > > On 06/10/21 13:12, Sasha Levin wrote: > > > From: Haimin Zhang <tcs_kernel@xxxxxxxxxxx> > > > > > > [ Upstream commit eb7511bf9182292ef1df1082d23039e856d1ddfb ] > > > > > > Check the return of init_srcu_struct(), which can fail due to OOM, when > > > initializing the page track mechanism. Lack of checking leads to a NULL > > > pointer deref found by a modified syzkaller. > > > > > > Reported-by: TCS Robot <tcs_robot@xxxxxxxxxxx> > > > Signed-off-by: Haimin Zhang <tcs_kernel@xxxxxxxxxxx> > > > Message-Id: <1630636626-12262-1-git-send-email-tcs_kernel@xxxxxxxxxxx> > > > [Move the call towards the beginning of kvm_arch_init_vm. - Paolo] > > > Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx> > > > Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> > > > > Acked-by: Paolo Bonzini <pbonzini@xxxxxxxxxx> > > Sasha, will this patch be applied for 4.19? > > The same question for the 5.4 backport [*]. It looks like both of them > are missed for unknown reasons. > > [*] https://lore.kernel.org/stable/20211006111250.264294-1-sashal@xxxxxxxxxx This was from 2021, quite a while ago. Can you please send them in backported form if you feel they should be applied? thanks, greg k-h
