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Re: [Linux-stable-mirror] Patch "x86/acpi: Restore the order of CPU IDs" has been added to the 4.9-stable tree

by Dou Liyang

Hi Greg, At 10/05/2017 04:30 PM, gregkh(a)linuxfoundation.org wrote: > > This is a note to let you know that I've just added the patch titled > > x86/acpi: Restore the order of CPU IDs > > to the 4.9-stable tree which can be found at: > http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… > Dao found a bug in Linux 4.9 LTS which shows below. The reason of the bug is that we just backport the patch titled x86/acpi: Restore the order of CPU IDs but, ignored the other patches in the series[1]. IMO, the commit c962cff17dfa ("Revert "x86/acpi: Set persistent cpuid <-> nodeid mapping when booting"") in the series can fixed this bug. I suggest to backport it. BTW, I read the rules in Documentation/process/stable-kernel-rules.rst, and found that: ... - It cannot be bigger than 100 lines, with context. ... I guess it seems that it's the reason why it did not be pulled in stable tree. Is it right? Can you tell more details about it. :-) [1] https://lkml.org/lkml/2017/3/3/71 Thanks, dou. ... [ 3.210401] BUG: unable to handle kernel NULL pointer dereference at (null) [ 3.219161] IP: [<ffffffffa5e77158>] __queue_work+0x78/0x420 [ 3.225491] PGD 0 [ 3.227537] [ 3.229205] Oops: 0000 [#1] SMP [ 3.232707] Modules linked in: [ 3.236124] CPU: 25 PID: 1 Comm: swapper/0 Not tainted 4.9.59-cloudflare-2017.10.3 #1 [ 3.244857] Hardware name: IBM x3630M4 -[7158OCN]-/00KF922, BIOS -[BEE142AUS-1.71]- 07/30/2014 [ 3.254461] task: ffff8dc2b2281e00 task.stack: ffffaa348c474000 [ 3.261068] RIP: 0010:[<ffffffffa5e77158>] [<ffffffffa5e77158>] __queue_work+0x78/0x420 [ 3.270112] RSP: 0000:ffffaa348c477cb0 EFLAGS: 00010046 [ 3.276039] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 3.284002] RDX: ffff8dc2b0272000 RSI: 000000007fffffff RDI: ffff8dc2b0272000 [ 3.291965] RBP: ffffaa348c477ce8 R08: 000000000001b3a0 R09: ffff8dc2be807840 [ 3.299929] R10: 0000000000ffff0a R11: 0000000000000003 R12: ffff8dc2b0272000 [ 3.307894] R13: 0000000000000200 R14: ffff8dc2be8a2000 R15: 0000000000013198 [ 3.315857] FS: 0000000000000000(0000) GS:ffff8dc2bf440000(0000) knlGS:0000000000000000 [ 3.324890] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.331301] CR2: 0000000000000000 CR3: 00000001a2c07000 CR4: 00000000001406e0 [ 3.339264] Stack: [ 3.341505] ffff8dc2afcea000 0000001900000800 0000000000000246 0000000000000000 [ 3.349801] 0000000000000000 ffffffffa686bdbd ffff8dc2b13e39c0 ffffaa348c477d00 [ 3.358094] ffffffffa5e77519 ffff8dc2b0272000 ffffaa348c477d40 ffffffffa5e73eae [ 3.366390] Call Trace: [ 3.369121] [<ffffffffa5e77519>] queue_work_on+0x19/0x30 [ 3.375146] [<ffffffffa5e73eae>] call_usermodehelper_exec+0x7e/0x130 [ 3.382337] [<ffffffffa6242157>] kobject_uevent_env+0x4b7/0x510 [ 3.389033] [<ffffffffa62421bb>] kobject_uevent+0xb/0x10 [ 3.395058] [<ffffffffa62416e9>] kset_register+0x59/0x70 [ 3.401086] [<ffffffffa63268b0>] bus_register+0xd0/0x260 [ 3.407114] [<ffffffffa6bdd7bf>] ? acpi_int340x_thermal_init+0x12/0x12 [ 3.414496] [<ffffffffa6bdd7cf>] pnp_init+0x10/0x12 [ 3.420039] [<ffffffffa5e00440>] do_one_initcall+0x50/0x180 [ 3.426357] [<ffffffffa6b97077>] kernel_init_freeable+0x1a2/0x22a [ 3.433258] [<ffffffffa655df40>] ? rest_init+0x80/0x80 [ 3.439089] [<ffffffffa655df4e>] kernel_init+0xe/0x100 [ 3.444921] [<ffffffffa6564da2>] ret_from_fork+0x22/0x30 [ 3.450945] Code: 00 00 41 f6 86 00 01 00 00 02 0f 85 ee 00 0 ... > The filename of the patch is: > x86-acpi-restore-the-order-of-cpu-ids.patch > and it can be found in the queue-4.9 subdirectory. > > If you, or anyone else, feels it should not be added to the stable tree, > please let <stable(a)vger.kernel.org> know about it. > > >>From foo@baz Thu Oct 5 10:28:31 CEST 2017 > From: Dou Liyang <douly.fnst(a)cn.fujitsu.com> > Date: Fri, 3 Mar 2017 16:02:25 +0800 > Subject: x86/acpi: Restore the order of CPU IDs > > From: Dou Liyang <douly.fnst(a)cn.fujitsu.com> > > > [ Upstream commit 2b85b3d22920db7473e5fed5719e7955c0ec323e ] > > The following commits: > > f7c28833c2 ("x86/acpi: Enable acpi to register all possible cpus at > boot time") and 8f54969dc8 ("x86/acpi: Introduce persistent storage > for cpuid <-> apicid mapping") > > ... registered all the possible CPUs at boot time via ACPI tables to > make the mapping of cpuid <-> apicid fixed. Both enabled and disabled > CPUs could have a logical CPU ID after boot time. > > But, ACPI tables are unreliable. the number amd order of Local APIC > entries which depends on the firmware is often inconsistent with the > physical devices. Even if they are consistent, The disabled CPUs which > take up some logical CPU IDs will also make the order discontinuous. > > Revert the part of disabled CPUs registration, keep the allocation > logic of logical CPU IDs and also keep some code location changes. > > Signed-off-by: Dou Liyang <douly.fnst(a)cn.fujitsu.com> > Tested-by: Xiaolong Ye <xiaolong.ye(a)intel.com> > Cc: rjw(a)rjwysocki.net > Cc: linux-acpi(a)vger.kernel.org > Cc: guzheng1(a)huawei.com > Cc: izumi.taku(a)jp.fujitsu.com > Cc: lenb(a)kernel.org > Link: http://lkml.kernel.org/r/1488528147-2279-4-git-send-email-douly.fnst@cn.fuj… > Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> > Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> > Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> > --- > arch/x86/kernel/acpi/boot.c | 7 ++++++- > arch/x86/kernel/apic/apic.c | 26 +++++++------------------- > 2 files changed, 13 insertions(+), 20 deletions(-) > > --- a/arch/x86/kernel/acpi/boot.c > +++ b/arch/x86/kernel/acpi/boot.c > @@ -176,10 +176,15 @@ static int acpi_register_lapic(int id, u > return -EINVAL; > } > > + if (!enabled) { > + ++disabled_cpus; > + return -EINVAL; > + } > + > if (boot_cpu_physical_apicid != -1U) > ver = boot_cpu_apic_version; > > - cpu = __generic_processor_info(id, ver, enabled); > + cpu = generic_processor_info(id, ver); > if (cpu >= 0) > early_per_cpu(x86_cpu_to_acpiid, cpu) = acpiid; > > --- a/arch/x86/kernel/apic/apic.c > +++ b/arch/x86/kernel/apic/apic.c > @@ -2070,7 +2070,7 @@ static int allocate_logical_cpuid(int ap > return nr_logical_cpuids++; > } > > -int __generic_processor_info(int apicid, int version, bool enabled) > +int generic_processor_info(int apicid, int version) > { > int cpu, max = nr_cpu_ids; > bool boot_cpu_detected = physid_isset(boot_cpu_physical_apicid, > @@ -2128,11 +2128,9 @@ int __generic_processor_info(int apicid, > if (num_processors >= nr_cpu_ids) { > int thiscpu = max + disabled_cpus; > > - if (enabled) { > - pr_warning("APIC: NR_CPUS/possible_cpus limit of %i " > - "reached. Processor %d/0x%x ignored.\n", > - max, thiscpu, apicid); > - } > + pr_warning("APIC: NR_CPUS/possible_cpus limit of %i " > + "reached. Processor %d/0x%x ignored.\n", > + max, thiscpu, apicid); > > disabled_cpus++; > return -EINVAL; > @@ -2184,23 +2182,13 @@ int __generic_processor_info(int apicid, > apic->x86_32_early_logical_apicid(cpu); > #endif > set_cpu_possible(cpu, true); > - > - if (enabled) { > - num_processors++; > - physid_set(apicid, phys_cpu_present_map); > - set_cpu_present(cpu, true); > - } else { > - disabled_cpus++; > - } > + physid_set(apicid, phys_cpu_present_map); > + set_cpu_present(cpu, true); > + num_processors++; > > return cpu; > } > > -int generic_processor_info(int apicid, int version) > -{ > - return __generic_processor_info(apicid, version, true); > -} > - > int hard_smp_processor_id(void) > { > return read_apic_id(); > > > Patches currently in stable-queue which might be from douly.fnst(a)cn.fujitsu.com are > > queue-4.9/x86-acpi-restore-the-order-of-cpu-ids.patch > > >

7 years, 5 months

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[Linux-stable-mirror] v4.4.103 build: 0 failures 0 warnings (v4.4.103)

by Build bot for Mark Brown

Tree/Branch: v4.4.103 Git describe: v4.4.103 Commit: 08c15ad2e6 Linux 4.4.103 Build Time: 87 min 21 sec Passed: 9 / 9 (100.00 %) Failed: 0 / 9 ( 0.00 %) Errors: 0 Warnings: 0 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): ------------------------------------------------------------------------------- =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allmodconfig arm-allnoconfig x86_64-allnoconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

7 years, 5 months

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[Linux-stable-mirror] [GIT PULL] commits for Linux 4.4

by alexander.levin＠verizon.com

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hi Greg, Pleae pull commits for Linux 4.4 . I've sent a review request for all commits over a week ago and all comments were addressed. Thanks, Sasha ===== The following changes since commit 08c15ad2e6278a5fe1b209e8fcdbd2d235c48f34: Linux 4.4.103 (2017-11-30 08:37:28 +0000) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git for-greg/4.14/4.4 for you to fetch changes up to 35875b21e77f03b5e0ce4278579294af69da5d00: kprobes/x86: Disable preemption in ftrace-based jprobes (2017-11-30 16:49:32 -0500) - ---------------------------------------------------------------- Aaron Sierra (1): serial: 8250: Preserve DLD[7:4] for PORT_XR17V35X Alexey Khoroshilov (1): usb: phy: tahvo: fix error handling in tahvo_usb_probe() Andy Lutomirski (1): selftests/x86/ldt_get: Add a few additional tests for limits Ben Hutchings (1): usbip: tools: Install all headers needed for libusbip development Boshi Wang (1): ima: fix hash algorithm initialization Christian Borntraeger (1): s390/pci: do not require AIS facility Dave Hansen (1): x86/entry: Use SYSCALL_DEFINE() macros for sys_modify_ldt() Gustavo A. R. Silva (1): EDAC, sb_edac: Fix missing break in switch Hiromitsu Yamasaki (1): spi: sh-msiof: Fix DMA transfer size check Jibin Xu (1): sysrq : fix Show Regs call trace on ARM John Stultz (2): usb: dwc2: Fix UDC state tracking usb: dwc2: Error out of dwc2_hsotg_ep_disable() if we're in host mode Lukas Wunner (1): serial: 8250_fintek: Fix rs485 disablement on invalid ioctl() Masami Hiramatsu (1): kprobes/x86: Disable preemption in ftrace-based jprobes Thomas Richter (1): perf test attr: Fix ignored test case result arch/s390/include/asm/pci_insn.h | 2 +- arch/s390/pci/pci.c | 5 +++-- arch/s390/pci/pci_insn.c | 6 +++++- arch/x86/include/asm/syscalls.h | 2 +- arch/x86/kernel/kprobes/ftrace.c | 23 ++++++++++++++--------- arch/x86/kernel/ldt.c | 16 +++++++++++++--- arch/x86/um/ldt.c | 7 +++++-- drivers/edac/sb_edac.c | 1 + drivers/spi/spi-sh-msiof.c | 2 +- drivers/tty/serial/8250/8250_fintek.c | 2 +- drivers/tty/serial/8250/8250_port.c | 5 ++++- drivers/tty/sysrq.c | 9 +++++++-- drivers/usb/dwc2/gadget.c | 7 +++++++ drivers/usb/phy/phy-tahvo.c | 3 ++- security/integrity/ima/ima_main.c | 4 ++++ tools/perf/tests/attr.c | 2 +- tools/testing/selftests/x86/ldt_gdt.c | 17 ++++++++++++++++- tools/usb/usbip/Makefile.am | 3 ++- 18 files changed, 88 insertions(+), 28 deletions(-) -----BEGIN PGP SIGNATURE----- iQIcBAEBCAAGBQJaIH/+AAoJEN6mb/eXdyzcQQkP/j3Cdl+nqMgY28ui3xmFG/7N rmTIjsIjS9lCPHH2i53jR518WPwKwte47k25FzOZi0kwdG2Q7Ds8N0jxJhs/rquU lrz9T41bO7wihILHTFBOca185Mzf7elXF+VATP+dtVz51JnqvpL1vtZe29Wsv9We WTuCdjnc9Sv6DP0DbctxQToUCc+SFT/DqOlgdTQfZJmhQAcNrCxmfzKjMJ48W38V P4FgBdZ7I1pkaNIXWbzDB8XARzesdupFjMjACgTCQ/XdhodgdPwgssNMURX8uKC8 PIpbW8syYQPGmepLv7hiDoFgPKxDPgfSVQXgFIQkfFWXSMnnulI+sj7gi2F8u1fS MVENj75UTBKL1RgbwFxuIZLRZKDcMi/RRjAdOxiMQWY5v0PWMnCwta1/CtGKnkBT Wf1do7Lt0ce8sstd+udztNvfQToSBi47LMC/Sdn2GcXTCM1MTUUXiMHeybYLZR1+ Kpsjpj4Fc1CqIrelJUA78KpDpCpUb5osj8tnahx4pYmBp11V3G6jGQZYLPZDUxdU 0vpzAaeeVIRg2X17VB4zuDdLzVMrB0ChImRcXIDht7wuyMG2+vqKX7IB+Mit7yEQ md6Benpeok44SSxlXKRrVz37ZlStxGSVIG+F1DTR4dE17N/4ZUNpKx/eXP8pFtlh QVkzov+tpzlMNXSB1cg6 =BCzy -----END PGP SIGNATURE-----

7 years, 5 months

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[Linux-stable-mirror] [GIT PULL] commits for Linux 4.9

by alexander.levin＠verizon.com

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hi Greg, Pleae pull commits for Linux 4.9 . I've sent a review request for all commits over a week ago and all comments were addressed. Thanks, Sasha ===== The following changes since commit 8743ce3d7c9698285310920c443c086e337aef44: Linux 4.9.66 (2017-11-30 08:39:15 +0000) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git for-greg/4.14/4.9 for you to fetch changes up to 574fdc217821afb433ca261c0ffb199a5ba37816: iio: adc: ti-ads1015: add 10% to conversion wait time (2017-11-30 16:49:20 -0500) - ---------------------------------------------------------------- Aaron Sierra (1): serial: 8250: Preserve DLD[7:4] for PORT_XR17V35X Alexey Khoroshilov (1): usb: phy: tahvo: fix error handling in tahvo_usb_probe() Andy Lutomirski (1): selftests/x86/ldt_get: Add a few additional tests for limits Arnaldo Carvalho de Melo (1): tools include: Do not use poison with C++ Ben Hutchings (1): usbip: tools: Install all headers needed for libusbip development Boshi Wang (1): ima: fix hash algorithm initialization Bryan O'Donoghue (1): staging: greybus: loopback: Fix iteration count on async path Christian Borntraeger (1): s390/pci: do not require AIS facility Colin Ian King (1): staging: rtl8188eu: avoid a null dereference on pmlmepriv Dave Hansen (1): x86/entry: Use SYSCALL_DEFINE() macros for sys_modify_ldt() Greg Ungerer (1): m68k: fix ColdFire node shift size calculation Gustavo A. R. Silva (1): EDAC, sb_edac: Fix missing break in switch Hiromitsu Yamasaki (1): spi: sh-msiof: Fix DMA transfer size check Jibin Xu (1): sysrq : fix Show Regs call trace on ARM Johan Hovold (1): spi: spi-axi: fix potential use-after-free after deregistration John Stultz (2): usb: dwc2: Fix UDC state tracking usb: dwc2: Error out of dwc2_hsotg_ep_disable() if we're in host mode Ladislav Michl (1): iio: adc: ti-ads1015: add 10% to conversion wait time Lukas Wunner (1): serial: 8250_fintek: Fix rs485 disablement on invalid ioctl() Masami Hiramatsu (2): kprobes: Use synchronize_rcu_tasks() for optprobe with CONFIG_PREEMPT=y kprobes/x86: Disable preemption in ftrace-based jprobes Subhash Jadavani (1): mmc: sdhci-msm: fix issue with power irq Thomas Richter (1): perf test attr: Fix ignored test case result arch/Kconfig | 2 +- arch/m68k/mm/mcfmmu.c | 2 +- arch/s390/include/asm/pci_insn.h | 2 +- arch/s390/pci/pci.c | 5 +++-- arch/s390/pci/pci_insn.c | 6 +++++- arch/x86/include/asm/syscalls.h | 2 +- arch/x86/kernel/kprobes/ftrace.c | 23 ++++++++++++++--------- arch/x86/kernel/ldt.c | 16 +++++++++++++--- arch/x86/um/ldt.c | 7 +++++-- drivers/edac/sb_edac.c | 1 + drivers/iio/adc/ti-ads1015.c | 1 + drivers/mmc/host/sdhci-msm.c | 18 ++++++++++++++++++ drivers/spi/spi-axi-spi-engine.c | 4 +++- drivers/spi/spi-sh-msiof.c | 2 +- drivers/staging/greybus/loopback.c | 4 +++- drivers/staging/rtl8188eu/core/rtw_mlme.c | 6 +++--- drivers/tty/serial/8250/8250_fintek.c | 2 +- drivers/tty/serial/8250/8250_port.c | 5 ++++- drivers/tty/sysrq.c | 9 +++++++-- drivers/usb/dwc2/gadget.c | 7 +++++++ drivers/usb/phy/phy-tahvo.c | 3 ++- kernel/kprobes.c | 14 ++++++++------ security/integrity/ima/ima_main.c | 4 ++++ tools/include/linux/poison.h | 5 +++++ tools/perf/tests/attr.c | 2 +- tools/testing/selftests/x86/ldt_gdt.c | 17 ++++++++++++++++- tools/usb/usbip/Makefile.am | 3 ++- 27 files changed, 131 insertions(+), 41 deletions(-) -----BEGIN PGP SIGNATURE----- iQIcBAEBCAAGBQJaIH/3AAoJEN6mb/eXdyzctnMP/jy2FMNf1saN2QBSdvlRY8a5 Ac3okxDRpJ+T3UOP0AN2/ZAGNqU49O2pcAUCR5MjFOBzm2npqa4sA231lXBh4Vh2 j0yrABGifeNkUXSoeeTss0F2/rcuFmDBMvHGfWxl++gOlHUFNU5Al749kGIhjeOe h/2/BlL2xXPOIW5ykSMrQLnlzCeDCWNeGgbqR6MC6NP+Ao/0pr1uinBL7Y0awReu UutttP+2n+tIlQ3BcbrTPnfRxMzvpZYchgN+R9/vzBNnW+xXRkNv7fR0XppUzDYm auAdRRwi5mvinJtuUQWVlFVC37aVA9WhmXU8XChxgUIQc+xxbebf1jBd84ipqJkn ZfHmsJjKfuHLUIZ6ybHWD389fpHYK9a8mHyvBhp6PQjl5JkTKMbd2AHOvKr3zCAk HEfK/ZvrFOYKrJHEe7FSZc9nR3X4tDyMqr+Le2StPxxsaYeb/irFfpO/Q/h4UjAz DgE22/q7KhJfqxeTko2nyr+p0RLbSMCcQ3+631jv0ZkZ6VoV4LLCipvO/7md5UuP OCRhZFcIAw4bzcDPGbQQDwzmKhfWsY5C3SFun5GSfpF01hFYXyMkri+LS8g0dRcv 2J2ZkbYWyD1SffqCNv5etUIvygoZwZ5LFf6bTBFZV4C9GtZ95ttfVzGzZlOdND1C TlTn6gfP31z4IW/iM4JA =vw2H -----END PGP SIGNATURE-----

7 years, 5 months

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[Linux-stable-mirror] [GIT PULL] commits for Linux 4.14

by alexander.levin＠verizon.com

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hi Greg, Pleae pull commits for Linux 4.14 . I've sent a review request for all commits over a week ago and all comments were addressed. Thanks, Sasha ===== The following changes since commit 191314edb326764c4481b09ccf7d00159abe4679: Linux 4.14.3 (2017-11-30 08:41:00 +0000) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git for-greg/4.14/4.14 for you to fetch changes up to 14e06117c1ee40c43bf85c17c6853bf711243004: irqchip/gic-v3: Add workaround for Synquacer pre-ITS (2017-11-30 16:44:07 -0500) - ---------------------------------------------------------------- Aaron Sierra (1): serial: 8250: Preserve DLD[7:4] for PORT_XR17V35X Alexey Khoroshilov (1): usb: phy: tahvo: fix error handling in tahvo_usb_probe() Andy Lowe (1): serial: sh-sci: suppress warning for ports without dma channels Andy Lutomirski (2): selftests/x86/ldt_get: Add a few additional tests for limits selftests/x86/ldt_gdt: Robustify against set_thread_area() and LAR oddities Ard Biesheuvel (2): clocksource/drivers/arm_arch_timer: Validate CNTFRQ after enabling frame irqchip/gic-v3: Add workaround for Synquacer pre-ITS Arnaldo Carvalho de Melo (1): tools include: Do not use poison with C++ Ben Hutchings (1): usbip: tools: Install all headers needed for libusbip development Boshi Wang (1): ima: fix hash algorithm initialization Bryan O'Donoghue (1): staging: greybus: loopback: Fix iteration count on async path Christian Borntraeger (1): s390/pci: do not require AIS facility Chunfeng Yun (1): usb: mtu3: fix error return code in ssusb_gadget_init() Colin Ian King (1): staging: rtl8188eu: avoid a null dereference on pmlmepriv Dave Hansen (1): x86/entry: Use SYSCALL_DEFINE() macros for sys_modify_ldt() Edward A. James (1): hwmon: (pmbus/core) Prevent unintentional setting of page to 0xFF Fabrizio Castro (1): mmc: tmio: check mmc_regulator_get_supply return value Geert Uytterhoeven (1): dt-bindings: timer: renesas, cmt: Fix SoC-specific compatible values Greg Ungerer (1): m68k: fix ColdFire node shift size calculation Gustavo A. R. Silva (2): EDAC, sb_edac: Fix missing break in switch iio: multiplexer: add NULL check on devm_kzalloc() and devm_kmemdup() return values Heiko Carstens (1): s390/ptrace: fix guarded storage regset handling Hiromitsu Yamasaki (1): spi: sh-msiof: Fix DMA transfer size check Ian Jamison (1): serial: imx: Update cached mctrl value when changing RTS Ioana Radulescu (2): staging: fsl-dpaa2/eth: Account for Rx FD buffers on error path staging: fsl-mc/dpio: Fix incorrect comparison Jason J. Herne (1): s390: vfio-ccw: Do not attempt to free no-op, test and tic cda. Jibin Xu (1): sysrq : fix Show Regs call trace on ARM Johan Hovold (1): spi: spi-axi: fix potential use-after-free after deregistration John Stultz (2): usb: dwc2: Fix UDC state tracking usb: dwc2: Error out of dwc2_hsotg_ep_disable() if we're in host mode Kees Cook (2): locking/refcounts, x86/asm: Use unique .text section for refcount exceptions locking/refcounts, x86/asm: Enable CONFIG_ARCH_HAS_REFCOUNT Kirill A. Shutemov (1): mm, x86/mm: Fix performance regression in get_user_pages_fast() Kishon Vijay Abraham I (1): PCI: dra7xx: Create functional dependency between PCIe and PHY Ladislav Michl (1): iio: adc: ti-ads1015: add 10% to conversion wait time Larry Finger (1): staging: rtl8822be: Keep array subscript no lower than zero Leo Yan (1): ARM: cpuidle: Correct driver unregistration if init fails Lu Baolu (1): usb: xhci: Return error when host is dead in xhci_disable_slot() Lukas Wunner (1): serial: 8250_fintek: Fix rs485 disablement on invalid ioctl() Martin Kepplinger (1): perf tools: Fix leaking rec_argv in error cases Masami Hiramatsu (2): kprobes: Use synchronize_rcu_tasks() for optprobe with CONFIG_PREEMPT=y kprobes/x86: Disable preemption in ftrace-based jprobes Peter Zijlstra (1): perf/core: Fix __perf_read_group_add() locking Reinette Chatre (2): x86/intel_rdt: Initialize bitmask of shareable resource if CDP enabled x86/intel_rdt: Fix potential deadlock during resctrl mount Stanislaw Gruszka (1): staging: rtl8822be: fix wrong dma unmap len Subhash Jadavani (1): mmc: sdhci-msm: fix issue with power irq Thomas Richter (2): perf test attr: Fix ignored test case result perf test attr: Fix python error on empty result Ulf Hansson (1): PM / Domains: Fix genpd to deal with drivers returning 1 from ->prepare() .../bindings/interrupt-controller/arm,gic-v3.txt | 4 + .../devicetree/bindings/timer/renesas,cmt.txt | 24 +++--- arch/Kconfig | 2 +- arch/arm64/Kconfig | 8 ++ arch/m68k/mm/mcfmmu.c | 2 +- arch/s390/include/asm/pci_insn.h | 2 +- arch/s390/kernel/ptrace.c | 33 +++++--- arch/s390/pci/pci.c | 5 +- arch/s390/pci/pci_insn.c | 6 +- arch/x86/Kconfig | 2 +- arch/x86/include/asm/refcount.h | 2 +- arch/x86/include/asm/syscalls.h | 2 +- arch/x86/kernel/cpu/intel_rdt.c | 1 + arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 8 +- arch/x86/kernel/kprobes/ftrace.c | 23 +++-- arch/x86/kernel/ldt.c | 16 +++- arch/x86/mm/extable.c | 7 +- arch/x86/um/ldt.c | 7 +- drivers/base/power/domain.c | 5 +- drivers/clocksource/arm_arch_timer.c | 38 +++++---- drivers/cpuidle/cpuidle-arm.c | 22 +++-- drivers/edac/sb_edac.c | 1 + drivers/hwmon/pmbus/pmbus.h | 6 +- drivers/hwmon/pmbus/pmbus_core.c | 25 +++--- drivers/iio/adc/ti-ads1015.c | 1 + drivers/iio/multiplexer/iio-mux.c | 6 ++ drivers/irqchip/irq-gic-v3-its.c | 72 +++++++++++++++- drivers/mmc/host/sdhci-msm.c | 18 ++++ drivers/mmc/host/tmio_mmc_core.c | 5 +- drivers/pci/dwc/pci-dra7xx.c | 16 ++++ drivers/s390/cio/vfio_ccw_cp.c | 2 + drivers/spi/spi-axi-spi-engine.c | 4 +- drivers/spi/spi-sh-msiof.c | 2 +- drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c | 15 +++- drivers/staging/fsl-mc/bus/dpio/dpio-service.c | 4 +- drivers/staging/fsl-mc/include/dpaa2-io.h | 6 +- drivers/staging/greybus/loopback.c | 4 +- drivers/staging/rtl8188eu/core/rtw_mlme.c | 6 +- drivers/staging/rtlwifi/phydm/phydm_dig.c | 2 + drivers/staging/rtlwifi/rtl8822be/fw.c | 2 +- drivers/tty/serial/8250/8250_fintek.c | 2 +- drivers/tty/serial/8250/8250_port.c | 5 +- drivers/tty/serial/imx.c | 6 +- drivers/tty/serial/sh-sci.c | 8 ++ drivers/tty/sysrq.c | 9 +- drivers/usb/dwc2/gadget.c | 7 ++ drivers/usb/host/xhci.c | 3 +- drivers/usb/mtu3/mtu3_core.c | 4 +- drivers/usb/phy/phy-tahvo.c | 3 +- include/asm-generic/vmlinux.lds.h | 1 + kernel/events/core.c | 4 +- kernel/kprobes.c | 14 ++-- mm/gup.c | 97 +++++++++++++--------- security/integrity/ima/ima_main.c | 4 + tools/include/linux/poison.h | 5 ++ tools/perf/builtin-c2c.c | 1 + tools/perf/builtin-mem.c | 1 + tools/perf/builtin-timechart.c | 4 +- tools/perf/builtin-trace.c | 1 + tools/perf/tests/attr.c | 2 +- tools/perf/tests/attr.py | 6 +- tools/testing/selftests/x86/ldt_gdt.c | 27 +++++- tools/usb/usbip/Makefile.am | 3 +- 63 files changed, 456 insertions(+), 177 deletions(-) -----BEGIN PGP SIGNATURE----- iQIcBAEBCAAGBQJaIH/wAAoJEN6mb/eXdyzcwqEQAJF67Rx7hDD5ZtuIklq+GPuS WVkif0qbYI+YnFDmCOlFq7HGUpHmGKuBIMrO4EyvQz4FGHx0rrp9NJG8CB/AHOqq JcPGpO3r9uK01c0c6Vo9/xHQzJ0Ua6E2oKpr9gXSrqNwIYRL8FkEKfK0qBo2FtHe 6Kd2oHi6dRg2OdxV2czYPoV9mNdmRsHvpVbFUIKMmQJZPRUWxTbjok4BIKfCTXFR y4idFmznP3WWfIvxgOuPoeaKoi95QjRnkuEBIJvb2r35NTzpjfvDx3KGGZaROAJ6 pkNmwMEpFVrCW5piW8hNgb2iEvQ7pRj3NVlRXMdoK5Ynajk5U5PqhTtaYsiyUWPh fmg2CzRPGWAFhgRghlQjyADDe0pn09zRuRukKflbiGmu3qEdkXT7KSy7kWMdjujQ Mm8ABe1liCutBPUdF31EHexCey7QBMaVnkWMUjY6xbYEUNKIPn8gsxYXWwO72mKP aSUMcDUiJV1dfxdxQrIpUHu3qmmEXIK9QXA9RL7tK0ROHPrVVnEGg3wWsaC6gPr7 tF7YI1ap8qcXn3HSWkBumkskHPbAXaugHDENdj/P2OSvhm+hxjY1stRwCWWg+88x MMYrtntCPOcZg1HXMWrSuNvt11r0HW0nJ0Ao3bTwYYbvnHln+jNqCy17YXEgDAWe aFHa1Sa8NqVT203I3Tv8 =EiN1 -----END PGP SIGNATURE-----

7 years, 5 months

1
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[Linux-stable-mirror] [GIT PULL] commits for Linux 4.4

by alexander.levin＠verizon.com

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hi Greg, Pleae pull commits for Linux 4.4 . I've sent a review request for all commits over a week ago and all comments were addressed. Thanks, Sasha ===== The following changes since commit 26d6298789e695c9f627ce49a7bbd2286405798a: Linux 4.4.100 (2017-11-21 09:21:23 +0100) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git for-greg-4.4 for you to fetch changes up to 43bbacc77810847d73136c47443b9987a5de1a9d: net: fec: fix multicast filtering hardware setup (2017-11-22 10:29:26 -0500) - ---------------------------------------------------------------- Andrzej Hajda (1): drm/exynos/decon5433: set STANDALONE_UPDATE_F on output enablement Benjamin Coddington (1): nfs: Don't take a reference on fl->fl_file for LOCK operation Christoffer Dall (1): KVM: arm/arm64: Fix occasional warning from the timer work function Colin Ian King (1): net: sctp: fix array overrun read on sctp_timer_tbl David Forster (1): vti6: fix device register to report IFLA_INFO_KIND Florian Fainelli (2): net: systemport: Utilize skb_put_padto() net: systemport: Pad packet before inserting TSB Iago Abal (1): dmaengine: pl330: fix double lock Jan Kara (1): mm: avoid returning VM_FAULT_RETRY from ->page_mkwrite handlers Jason Baron (1): tcp: correct memory barrier usage in tcp_check_space() Kazuya Mizuguchi (1): ravb: Remove Rx overflow log messages Parthasarathy Bhuvaragan (1): tipc: fix cleanup at module unload Peter Ujfalusi (1): ARM: OMAP1: DMA: Correct the number of logical channels Ross Lagerwall (1): xen-netfront: Improve error handling during initialization Rui Sousa (1): net: fec: fix multicast filtering hardware setup Trond Myklebust (1): NFSv4: Fix client recovery when server reboots multiple times Vlad Tsyrklevich (1): net/appletalk: Fix kernel memory disclosure arch/arm/mach-omap1/dma.c | 16 ++++++------- drivers/dma/pl330.c | 19 +++++----------- drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 2 ++ drivers/net/appletalk/ipddp.c | 2 +- drivers/net/ethernet/broadcom/bcmsysport.c | 23 +++++++++---------- drivers/net/ethernet/freescale/fec_main.c | 23 ++++++++----------- drivers/net/ethernet/renesas/ravb_main.c | 8 ++----- drivers/net/xen-netfront.c | 29 +++++++++--------------- drivers/staging/lustre/lustre/llite/llite_mmap.c | 4 +--- fs/nfs/nfs4proc.c | 3 --- fs/nfs/nfs4state.c | 1 - include/linux/buffer_head.h | 4 +--- net/ipv4/tcp_input.c | 2 +- net/ipv6/ip6_vti.c | 2 +- net/sctp/debug.c | 2 +- net/tipc/server.c | 4 +--- virt/kvm/arm/arch_timer.c | 3 --- 17 files changed, 55 insertions(+), 92 deletions(-) -----BEGIN PGP SIGNATURE----- iQIcBAEBCAAGBQJaIH/WAAoJEN6mb/eXdyzc608QAIjXP7HmBTLQXf2zllqVw50H OjepR73C+NjhzyIoBj/+Zel0h1c/evfysJGh2zbkTSD+ZQHEiTZfAoprfDbV46Ne w/eYDHDRUlpMv16OzJUqQOaFLDJtyyM2tj2+9GU8NZA112KXTA6jaWYEe8arvFEu seZLmeDH8kJHih9QBdqUzhfooxk1asdA8Tc1skKqfQpy0Aa91DQur3g/EafTnzoY BmqayerINLNpL6MpnsgUIU6aZYxTeuYUz9z7nJvmcHkjWujx1VBRwBwfnNGPeGiu 3Aui1+Flf0g9wlLqAgZKLBg6hxURIZ4AEyTVdFnyaansWkjiPPeebQU7Cwq3KtMJ PcDMrYFHpbnwL+Cb1xIf1F9y81UwbZ+2JqsXosMW8l5q/T+/0LMshxfpo+cS3e/l KSFraz8AQRCjXVGBpqS7/+kcgtBUR7LbotRGDjyfMV8pO8QUPGUiTYv1qZSSJ49J 52I24R4EFl+kbpyvu3jCdrrPhgBLQc2XbCg2PdmLcmL7Lw5bTcpJ111D/DQdsrJP 3dxhm0ehTjmKp2LZszFgH4gMdjamQfODX/xL5LoZ6rRPkGfCWl4DbjGj9wV6cIph Qd5Q7kdwVwPkWvIsuxmz+ggMiHmR3VyDZgBnkMgqHol08iHuXdpdrjqq9hZe/FbS O8S7+V7aovGqI3ZtIXcm =4jvr -----END PGP SIGNATURE-----

7 years, 5 months

1
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[Linux-stable-mirror] [GIT PULL] commits for Linux 4.9

by alexander.levin＠verizon.com

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hi Greg, Pleae pull commits for Linux 4.9 . I've sent a review request for all commits over a week ago and all comments were addressed. Thanks, Sasha ===== The following changes since commit 563c24f65f4fb009047cf4702dd16c7c592fd2b2: Linux 4.9.64 (2017-11-21 09:23:30 +0100) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git for-greg-4.9 for you to fetch changes up to 38c1d9924e4ce0171dcb014435f27a4519253ba5: net: fec: fix multicast filtering hardware setup (2017-11-22 16:19:15 -0500) - ---------------------------------------------------------------- Adam Ford (1): ARM: OMAP2+: Fix WL1283 Bluetooth Baud Rate Alexey Kardashevskiy (1): vfio/spapr: Fix missing mutex unlock when creating a window Andreas Schultz (2): gtp: clear DF bit on GTP packet tx gtp: fix cross netns recv on gtp socket Andrzej Hajda (3): drm/exynos/decon5433: update shadow registers iff there are active windows drm/exynos/decon5433: set STANDALONE_UPDATE_F also if planes are disabled drm/exynos/decon5433: set STANDALONE_UPDATE_F on output enablement Benjamin Coddington (1): nfs: Don't take a reference on fl->fl_file for LOCK operation Christoffer Dall (1): KVM: arm/arm64: Fix occasional warning from the timer work function Colin Ian King (1): net: sctp: fix array overrun read on sctp_timer_tbl David Forster (1): vti6: fix device register to report IFLA_INFO_KIND Eric W. Biederman (1): libfs: Modify mount_pseudo_xattr to be clear it is not a userspace mount Florian Fainelli (2): net: systemport: Utilize skb_put_padto() net: systemport: Pad packet before inserting TSB Guillaume Nault (1): l2tp: take remote address into account in l2tp_ip and l2tp_ip6 socket lookups Hans Verkuil (1): [media] cec: initiator should be the same as the destination for, poll Iago Abal (1): dmaengine: pl330: fix double lock Ivan Vecera (3): be2net: fix accesses to unicast list be2net: fix unicast list filling be2net: fix initial MAC setting Jan Kara (2): dax: Avoid page invalidation races and unnecessary radix tree traversals mm: avoid returning VM_FAULT_RETRY from ->page_mkwrite handlers Jason Baron (1): tcp: correct memory barrier usage in tcp_check_space() Jiri Olsa (1): perf/x86/intel: Account interrupts for PEBS errors Johannes Berg (2): mac80211: calculate min channel width correctly mac80211: don't try to sleep in rate_control_rate_init() Kazuya Mizuguchi (1): ravb: Remove Rx overflow log messages Kevin Hao (1): x86/fpu: Set the xcomp_bv when we fake up a XSAVES area M'boumba Cedric Madianga (2): dmaengine: stm32-dma: Set correct args number for DMA request from DT dmaengine: stm32-dma: Fix null pointer dereference in stm32_dma_tx_status Mart van Santen (1): xen-netback: vif counters from int/long to u64 Michal Hocko (1): mm: fix remote numa hits statistics Michal Kazior (1): mac80211: prevent skb/txq mismatch Mike Looijmans (1): i2c: i2c-cadence: Initialize configuration before probing devices Parthasarathy Bhuvaragan (2): tipc: fix nametbl_lock soft lockup at module exit tipc: fix cleanup at module unload Peter Ujfalusi (1): ARM: OMAP1: DMA: Correct the number of logical channels Quinn Tran (1): qla2xxx: Fix wrong IOCB type assumption Ram Amrani (2): RDMA/qedr: Return success when not changing QP state RDMA/qedr: Fix RDMA CM loopback Rex Zhu (1): drm/amdgpu: fix bug set incorrect value to vce register Reza Arbab (1): powerpc/mm: Fix memory hotplug BUG() on radix Ross Lagerwall (1): xen-netfront: Improve error handling during initialization Rui Sousa (1): net: fec: fix multicast filtering hardware setup Sagi Grimberg (1): nvmet: cancel fatal error and flush async work before free controller Sean Nyekjaer (1): net: phy: micrel: KSZ8795 do not set SUPPORTED_[Asym_]Pause Slava Shwartsman (1): net/mlx4_en: Fix type mismatch for 32-bit systems Stephen Boyd (1): net: qrtr: Mark 'buf' as little endian Trond Myklebust (1): NFSv4: Fix client recovery when server reboots multiple times Varun Prakash (1): libcxgb: fix error check for ip6_route_output() Vincent (1): net: thunderx: avoid dereferencing xcv when NULL Vincent Pelletier (1): usb: gadget: f_fs: Fix ExtCompat descriptor validation Vlad Tsyrklevich (1): net/appletalk: Fix kernel memory disclosure Xiangliang Yu (1): drm/amdgpu: fix unload driver issue for virtual display arch/arm/mach-omap1/dma.c | 16 ++++---- arch/arm/mach-omap2/pdata-quirks.c | 2 +- arch/powerpc/include/asm/book3s/64/hash.h | 4 ++ arch/powerpc/mm/hash_utils_64.c | 4 +- arch/powerpc/mm/pgtable-book3s64.c | 18 +++++++++ arch/x86/events/intel/ds.c | 6 ++- arch/x86/kernel/fpu/xstate.c | 1 + drivers/dma/pl330.c | 19 +++------ drivers/dma/stm32-dma.c | 17 +++----- drivers/gpu/drm/amd/amdgpu/dce_virtual.c | 5 +-- drivers/gpu/drm/amd/amdgpu/vce_v3_0.c | 2 +- drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 9 +++-- drivers/i2c/busses/i2c-cadence.c | 8 ++-- drivers/infiniband/hw/qedr/qedr_cm.c | 4 +- drivers/infiniband/hw/qedr/verbs.c | 2 +- drivers/net/appletalk/ipddp.c | 2 +- drivers/net/ethernet/broadcom/bcmsysport.c | 23 ++++++----- drivers/net/ethernet/cavium/thunder/thunder_xcv.c | 3 +- drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c | 12 +++--- drivers/net/ethernet/emulex/benet/be_main.c | 45 +++++++++++++++------- drivers/net/ethernet/freescale/fec_main.c | 23 +++++------ drivers/net/ethernet/mellanox/mlx4/en_clock.c | 8 +--- drivers/net/ethernet/renesas/ravb_main.c | 8 +--- drivers/net/gtp.c | 12 +++--- drivers/net/phy/micrel.c | 2 +- drivers/net/xen-netback/common.h | 8 ++-- drivers/net/xen-netback/interface.c | 8 ++-- drivers/net/xen-netfront.c | 29 ++++++-------- drivers/nvme/target/core.c | 3 ++ drivers/scsi/qla2xxx/qla_target.c | 8 +--- drivers/staging/lustre/lustre/llite/llite_mmap.c | 4 +- drivers/staging/media/cec/cec-adap.c | 7 ++-- drivers/usb/gadget/function/f_fs.c | 2 +- drivers/vfio/vfio_iommu_spapr_tce.c | 11 +++--- fs/dax.c | 28 ++++++-------- fs/libfs.c | 3 +- fs/nfs/nfs4proc.c | 3 -- fs/nfs/nfs4state.c | 1 - include/linux/buffer_head.h | 4 +- include/linux/perf_event.h | 1 + kernel/events/core.c | 47 +++++++++++++++-------- mm/page_alloc.c | 15 ++------ net/ipv4/tcp_input.c | 2 +- net/ipv6/ip6_vti.c | 2 +- net/l2tp/l2tp_ip.c | 19 +++------ net/l2tp/l2tp_ip6.c | 20 +++------- net/mac80211/chan.c | 3 -- net/mac80211/tx.c | 17 ++++---- net/qrtr/qrtr.c | 4 +- net/sctp/debug.c | 2 +- net/tipc/server.c | 20 +++------- virt/kvm/arm/arch_timer.c | 3 -- 52 files changed, 246 insertions(+), 283 deletions(-) -----BEGIN PGP SIGNATURE----- iQIcBAEBCAAGBQJaIH/FAAoJEN6mb/eXdyzcr3cQAJEe78kDnvxMtwi8Oiilt+Gt 4N27IEx52qF4gRip3VfMNBvDuyjaXtv847KhtDmgoW19sIGLaFCfcFDY9bRnb4hQ EDhUXsJniA5i3KpS+kL9VbjAQZB8qqHZFX4mjZ04jFJULHWzvpmUiXaJ6By3hrx3 tzsgKlozqC0aQQvoLopeeH39TdZPVKoDH/7QF5a0wtGBtF8HHv8b3fNsb9Pz6HPG OL2dx+PIDmQqi7R19+VQuL0jLLOsRpfd6JSWYaUPfaVdqVu24erQ5HUvmi9pLT1B N0DrkUkSuHOPhy9OGmsjOnZ2gZ4NrTMs4KaBXqclcNIASA80JVj9jS4yIr8zBRDS /QgWjCdhd9f6yE+YMCKstQqft6AVhUqslxIVpzawbMsZnI8wNgKRtSA6wYMlrqED 43eQS1BbtdXxllyDuYm/4OqNg5jSkcn83i5rjA5JCKEfOD4hk33CpztNqwA2eZ51 HX4tRBrdcMiTofdZBjtN8YwcbBMh5yKDVjSUJaj7BZvIPWPBVvr3EWvvT7Ki/gbH 45NSMD+hqIURX2cr5nw31XRNZCDCUHijPDQ+QA+lY3iR0cwBNx9qVh5k7yk/AG5q 4L5kCUV+nkQO9w3dmDlzEo4+MKKBxLLAK5YkOtA/I+wgEGwIvLedbbK2Yi4nj/8z rPlo+hW3T7YWiSIgpo27 =vubx -----END PGP SIGNATURE-----

7 years, 5 months

1
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[Linux-stable-mirror] [PATCH AUTOSEL for 4.9 01/52] ARM: 8657/1: uaccess: consistently check object sizes

by alexander.levin＠verizon.com

From: Kees Cook <keescook(a)chromium.org> [ Upstream commit 32b143637e8180f5d5cea54320c769210dea4f19 ] In commit 76624175dcae ("arm64: uaccess: consistently check object sizes"), the object size checks are moved outside the access_ok() so that bad destinations are detected before hitting the "memset(dest, 0, size)" in the copy_from_user() failure path. This makes the same change for arm, with attention given to possibly extracting the uaccess routines into a common header file for all architectures in the future. Suggested-by: Mark Rutland <mark.rutland(a)arm.com> Signed-off-by: Kees Cook <keescook(a)chromium.org> Signed-off-by: Russell King <rmk+kernel(a)armlinux.org.uk> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> --- arch/arm/include/asm/uaccess.h | 44 ++++++++++++++++++++++++++++++------------ 1 file changed, 32 insertions(+), 12 deletions(-) diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h index 1f59ea051bab..b7e0125c0bbf 100644 --- a/arch/arm/include/asm/uaccess.h +++ b/arch/arm/include/asm/uaccess.h @@ -478,11 +478,10 @@ extern unsigned long __must_check arm_copy_from_user(void *to, const void __user *from, unsigned long n); static inline unsigned long __must_check -__copy_from_user(void *to, const void __user *from, unsigned long n) +__arch_copy_from_user(void *to, const void __user *from, unsigned long n) { unsigned int __ua_flags; - check_object_size(to, n, false); __ua_flags = uaccess_save_and_enable(); n = arm_copy_from_user(to, from, n); uaccess_restore(__ua_flags); @@ -495,18 +494,15 @@ extern unsigned long __must_check __copy_to_user_std(void __user *to, const void *from, unsigned long n); static inline unsigned long __must_check -__copy_to_user(void __user *to, const void *from, unsigned long n) +__arch_copy_to_user(void __user *to, const void *from, unsigned long n) { #ifndef CONFIG_UACCESS_WITH_MEMCPY unsigned int __ua_flags; - - check_object_size(from, n, true); __ua_flags = uaccess_save_and_enable(); n = arm_copy_to_user(to, from, n); uaccess_restore(__ua_flags); return n; #else - check_object_size(from, n, true); return arm_copy_to_user(to, from, n); #endif } @@ -526,25 +522,49 @@ __clear_user(void __user *addr, unsigned long n) } #else -#define __copy_from_user(to, from, n) (memcpy(to, (void __force *)from, n), 0) -#define __copy_to_user(to, from, n) (memcpy((void __force *)to, from, n), 0) +#define __arch_copy_from_user(to, from, n) \ + (memcpy(to, (void __force *)from, n), 0) +#define __arch_copy_to_user(to, from, n) \ + (memcpy((void __force *)to, from, n), 0) #define __clear_user(addr, n) (memset((void __force *)addr, 0, n), 0) #endif -static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n) +static inline unsigned long __must_check +__copy_from_user(void *to, const void __user *from, unsigned long n) +{ + check_object_size(to, n, false); + return __arch_copy_from_user(to, from, n); +} + +static inline unsigned long __must_check +copy_from_user(void *to, const void __user *from, unsigned long n) { unsigned long res = n; + + check_object_size(to, n, false); + if (likely(access_ok(VERIFY_READ, from, n))) - res = __copy_from_user(to, from, n); + res = __arch_copy_from_user(to, from, n); if (unlikely(res)) memset(to + (n - res), 0, res); return res; } -static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n) +static inline unsigned long __must_check +__copy_to_user(void __user *to, const void *from, unsigned long n) { + check_object_size(from, n, true); + + return __arch_copy_to_user(to, from, n); +} + +static inline unsigned long __must_check +copy_to_user(void __user *to, const void *from, unsigned long n) +{ + check_object_size(from, n, true); + if (access_ok(VERIFY_WRITE, to, n)) - n = __copy_to_user(to, from, n); + n = __arch_copy_to_user(to, from, n); return n; } -- 2.11.0

7 years, 5 months

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[Linux-stable-mirror] [PATCH AUTOSEL for 3.18 01/16] selftest/powerpc: Fix false failures for skipped tests

by alexander.levin＠verizon.com

From: Sachin Sant <sachinp(a)linux.vnet.ibm.com> [ Upstream commit a6d8a21596df041f36f4c2ccc260c459e3e851f1 ] Tests under alignment subdirectory are skipped when executed on previous generation hardware, but harness still marks them as failed. test: test_copy_unaligned tags: git_version:unknown [SKIP] Test skipped on line 26 skip: test_copy_unaligned selftests: copy_unaligned [FAIL] The MAGIC_SKIP_RETURN_VALUE value assigned to rc variable is retained till the program exit which causes the test to be marked as failed. This patch resets the value before returning to the main() routine. With this patch the test o/p is as follows: test: test_copy_unaligned tags: git_version:unknown [SKIP] Test skipped on line 26 skip: test_copy_unaligned selftests: copy_unaligned [PASS] Signed-off-by: Sachin Sant <sachinp(a)linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> --- tools/testing/selftests/powerpc/harness.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/powerpc/harness.c b/tools/testing/selftests/powerpc/harness.c index 8ebc58a09311..d1ed7bab65a5 100644 --- a/tools/testing/selftests/powerpc/harness.c +++ b/tools/testing/selftests/powerpc/harness.c @@ -105,9 +105,11 @@ int test_harness(int (test_function)(void), char *name) rc = run_test(test_function, name); - if (rc == MAGIC_SKIP_RETURN_VALUE) + if (rc == MAGIC_SKIP_RETURN_VALUE) { test_skip(name); - else + /* so that skipped test is not marked as failed */ + rc = 0; + } else test_finish(name, rc); return rc; -- 2.11.0

7 years, 5 months

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[Linux-stable-mirror] [merged] mm-hugetlb-fix-null-pointer-dereference-on-5-level-paging-machine.patch removed from -mm tree

by akpm＠linux-foundation.org

The patch titled Subject: mm/hugetlb: fix NULL-pointer dereference on 5-level paging machine has been removed from the -mm tree. Its filename was mm-hugetlb-fix-null-pointer-dereference-on-5-level-paging-machine.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: "Kirill A. Shutemov" <kirill.shutemov(a)linux.intel.com> Subject: mm/hugetlb: fix NULL-pointer dereference on 5-level paging machine I made a mistake during converting hugetlb code to 5-level paging: in huge_pte_alloc() we have to use p4d_alloc(), not p4d_offset(). Otherwise it leads to crash -- NULL-pointer dereference in pud_alloc() if p4d table is not yet allocated. It only can happen in 5-level paging mode. In 4-level paging mode p4d_offset() always returns pgd, so we are fine. Link: http://lkml.kernel.org/r/20171122121921.64822-1-kirill.shutemov@linux.intel… Fixes: c2febafc6773 ("mm: convert generic code to 5-level paging") Signed-off-by: Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> Acked-by: Vlastimil Babka <vbabka(a)suse.cz> Acked-by: Michal Hocko <mhocko(a)suse.com> Cc: <stable(a)vger.kernel.org> [4.11+] Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/hugetlb.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff -puN mm/hugetlb.c~mm-hugetlb-fix-null-pointer-dereference-on-5-level-paging-machine mm/hugetlb.c --- a/mm/hugetlb.c~mm-hugetlb-fix-null-pointer-dereference-on-5-level-paging-machine +++ a/mm/hugetlb.c @@ -4635,7 +4635,9 @@ pte_t *huge_pte_alloc(struct mm_struct * pte_t *pte = NULL; pgd = pgd_offset(mm, addr); - p4d = p4d_offset(pgd, addr); + p4d = p4d_alloc(mm, pgd, addr); + if (!p4d) + return NULL; pud = pud_alloc(mm, p4d, addr); if (pud) { if (sz == PUD_SIZE) { _ Patches currently in -mm which might be from kirill.shutemov(a)linux.intel.com are

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