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
