Messages in this thread |  | | Subject | Re: [PATCH MANUALSEL 4.19 1/2] KVM: x86: Handle SRCU initialization failure during page track init | | From | Zenghui Yu <> | | Date | Wed, 29 May 2024 16:29:32 +0800 |
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On 2021/10/6 19:23, Paolo Bonzini wrote: > On 06/10/21 13:12, Sasha Levin wrote: > > From: Haimin Zhang <tcs_kernel@tencent.com> > > > > [ 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@tencent.com> > > Signed-off-by: Haimin Zhang <tcs_kernel@tencent.com> > > Message-Id: <1630636626-12262-1-git-send-email-tcs_kernel@tencent.com> > > [Move the call towards the beginning of kvm_arch_init_vm. - Paolo] > > Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> > > Signed-off-by: Sasha Levin <sashal@kernel.org> > > Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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@kernel.org
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