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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Ralph Siemsen <ralph.siemsen@linaro.org>
Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org,
	syzbot+899a33dc0fa0dbaf06a6@syzkaller.appspotmail.com,
	Kefeng Wang <wangkefeng.wang@huawei.com>,
	Jeremy Cline <jcline@redhat.com>,
	Marcel Holtmann <marcel@holtmann.org>
Subject: Re: [PATCH 4.9 02/31] Bluetooth: hci_ldisc: Postpone HCI_UART_PROTO_READY bit set in hci_uart_set_proto()
Date: Tue, 19 Nov 2019 05:47:03 +0100	[thread overview]
Message-ID: <20191119044703.GA1451491@kroah.com> (raw)
In-Reply-To: <20191118202712.GA14832@maple.netwinder.org>

On Mon, Nov 18, 2019 at 03:27:12PM -0500, Ralph Siemsen wrote:
> On Sat, Nov 16, 2019 at 03:56:14PM +0800, Greg Kroah-Hartman wrote:
> > > 
> > > BTW, this also seems to be missing from 4.4 branch, although it was merged
> > > for 3.16 (per https://lore.kernel.org/stable/?q=Postpone+HCI).
> > 
> > Odd that it was merged into 3.16, perhaps it was done there because some
> > earlier patch added the problem?
> 
> This patch should really be viewed as a correction to an earlier commit:
> 84cb3df02aea ("Bluetooth: hci_ldisc: Fix null pointer derefence in case of
> early data"). This was merged 2016-Apr-08 into v4.7, and therefore is
> included in 4.9 and higher.
> 
> Only very recently, on 2019-Sep-23, this was backported to 3.16, along with
> the correction. Both appeared in v3.16.74.

Ok, that makes more sense now.  The "fix" didn't apply as it was not a
fix for an old issue, but rather a new one.

> > I say this as I do not think this is
> > relevant for the 4.4.y kernel, do you?  Have you tried to apply this
> > patch there?
> 
> The patch does not apply, but this is mainly due to the earlier commit
> missing. It seems to me like that earlier fix is desirable (and it was put
> into 3.16), along with the followup. So I would think we want it in 4.4 as
> well.

I've queued them both up now, thanks.

> [Aside: I'm really only interested in 4.9 and 4.19, so the 4.4 stuff is just
> a diversion. But figured I might as well mention what I found...]

Other people at your company care about 4.4.y :)

thanks,

greg k-h

  reply	other threads:[~2019-11-19  4:47 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-15  6:20 [PATCH 4.9 00/31] 4.9.202-stable review Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 01/31] kvm: mmu: Dont read PDPTEs when paging is not enabled Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 02/31] Bluetooth: hci_ldisc: Postpone HCI_UART_PROTO_READY bit set in hci_uart_set_proto() Greg Kroah-Hartman
2019-11-15 16:10   ` Ralph Siemsen
2019-11-16  7:56     ` Greg Kroah-Hartman
2019-11-18 20:27       ` Ralph Siemsen
2019-11-19  4:47         ` Greg Kroah-Hartman [this message]
2019-11-15  6:20 ` [PATCH 4.9 03/31] MIPS: BCM63XX: fix switch core reset on BCM6368 Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 04/31] usb: gadget: core: unmap request from DMA only if previously mapped Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 05/31] KVM: x86: use Intel speculation bugs and features as derived in generic x86 code Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 06/31] x86/msr: Add the IA32_TSX_CTRL MSR Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 07/31] x86/cpu: Add a helper function x86_read_arch_cap_msr() Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 08/31] x86/cpu: Add a "tsx=" cmdline option with TSX disabled by default Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 09/31] x86/speculation/taa: Add mitigation for TSX Async Abort Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 10/31] x86/speculation/taa: Add sysfs reporting " Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 11/31] kvm/x86: Export MDS_NO=0 to guests when TSX is enabled Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 12/31] x86/tsx: Add "auto" option to the tsx= cmdline parameter Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 13/31] x86/speculation/taa: Add documentation for TSX Async Abort Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 14/31] x86/tsx: Add config options to set tsx=on|off|auto Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 15/31] x86/speculation/taa: Fix printing of TAA_MSG_SMT on IBRS_ALL CPUs Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 16/31] KVM: x86: simplify ept_misconfig Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 17/31] KVM: x86: extend usage of RET_MMIO_PF_* constants Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 18/31] kvm: Convert kvm_lock to a mutex Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 19/31] kvm: x86: Do not release the page inside mmu_set_spte() Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 20/31] KVM: x86: make FNAME(fetch) and __direct_map more similar Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 21/31] KVM: x86: remove now unneeded hugepage gfn adjustment Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 22/31] KVM: x86: change kvm_mmu_page_get_gfn BUG_ON to WARN_ON Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 23/31] KVM: x86: Add is_executable_pte() Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 24/31] KVM: x86: add tracepoints around __direct_map and FNAME(fetch) Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 25/31] KVM: vmx, svm: always run with EFER.NXE=1 when shadow paging is active Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 26/31] x86/bugs: Add ITLB_MULTIHIT bug infrastructure Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 27/31] cpu/speculation: Uninline and export CPU mitigations helpers Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 28/31] kvm: mmu: ITLB_MULTIHIT mitigation Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 29/31] kvm: Add helper function for creating VM worker threads Greg Kroah-Hartman
2019-11-15  6:20 ` [PATCH 4.9 30/31] kvm: x86: mmu: Recovery of shattered NX large pages Greg Kroah-Hartman
2019-11-15  6:21 ` [PATCH 4.9 31/31] Documentation: Add ITLB_MULTIHIT documentation Greg Kroah-Hartman
2019-11-15 12:00 ` [PATCH 4.9 00/31] 4.9.202-stable review kernelci.org bot
2019-11-15 13:50 ` Jon Hunter
2019-11-15 15:07   ` Greg Kroah-Hartman
2019-11-15 13:56 ` Guenter Roeck
2019-11-15 15:08   ` Greg Kroah-Hartman
2019-11-15 15:52 ` Naresh Kamboju
2019-11-16  8:02   ` Greg Kroah-Hartman

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