- 15 Feb, 2016 2 commits
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Gavin Shan authored
When PE is created, its primary bus is cached to pe->bus. At later point, the cached primary bus is returned from eeh_pe_bus_get(). However, we could get stale cached primary bus and run into kernel crash in one case: full hotplug as part of fenced PHB error recovery releases all PCI busses under the PHB at unplugging time and recreate them at plugging time. pe->bus is still dereferencing the PCI bus that was released. This adds another PE flag (EEH_PE_PRI_BUS) to represent the validity of pe->bus. pe->bus is updated when its first child EEH device is online and the flag is set. Before unplugging in full hotplug for error recovery, the flag is cleared. Fixes: 8cdb2833 ("powerpc/eeh: Trace PCI bus from PE") Cc: stable@vger.kernel.org #v3.11+ Reported-by:
Andrew Donnellan <andrew.donnellan@au1.ibm.com> Reported-by:
Pradipta Ghosh <pradghos@in.ibm.com> Signed-off-by:
Gavin Shan <gwshan@linux.vnet.ibm.com> Tested-by:
Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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Denis Kirjanov authored
If a cpu is hotplugged while the hcall trace points are active, it's possible to hit a warning from RCU due to the trace points calling into RCU from an offline cpu, eg: RCU used illegally from offline CPU! rcu_scheduler_active = 1, debug_locks = 1 Make the hypervisor tracepoints conditional by using TRACE_EVENT_FN_COND. Acked-by:
Steven Rostedt <rostedt@goodmis.org> Signed-off-by:
Denis Kirjanov <kda@linux-powerpc.org> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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- 08 Feb, 2016 1 commit
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Andreas Schwab authored
Since binutils 2.26 BFD is doing suffix merging on STRTAB sections. But dedotify modifies the symbol names in place, which can also modify unrelated symbols with a name that matches a suffix of a dotted name. To remove the leading dot of a symbol name we can just increment the pointer into the STRTAB section instead. Backport to all stables to avoid breakage when people update their binutils - mpe. Cc: stable@vger.kernel.org Signed-off-by:
Andreas Schwab <schwab@linux-m68k.org> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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- 31 Jan, 2016 1 commit
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Aneesh Kumar K.V authored
In file included from mm/vmscan.c:54:0: include/linux/swapops.h: In function ‘pte_to_swp_entry’: include/linux/swapops.h:69:2: error: implicit declaration of function ‘pte_swp_soft_dirty’ [-Werror=implicit-function-declaration] if (pte_swp_soft_dirty(pte)) ^ include/linux/swapops.h:70:3: error: implicit declaration of function ‘pte_swp_clear_soft_dirty’ [-Werror=implicit-function-declaration] pte = pte_swp_clear_soft_dirty(pte); We support soft dirty tracking only with book3s 64 for now. So change the Kconfig dependency accordingly. Also CHECKPOINT_RESTORE feature is not really dependent on SOFT_DIRTY. We track the dependency between MEM_SOFT_DIRTY and ARCH_SOFT_DIRTY through headers Fixes: 7207f436 ("powerpc/mm: Add page soft dirty tracking") Signed-off-by:
Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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- 28 Jan, 2016 2 commits
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Aneesh Kumar K.V authored
This was wrongly updated by commit 7aa9a23c ("powerpc, thp: remove infrastructure for handling splitting PMDs") during the last merge window. Fix it up. This could lead to incorrect behaviour in THP and/or mprotect(), at a minimum. Fixes: 7aa9a23c ("powerpc, thp: remove infrastructure for handling splitting PMDs") Signed-off-by:
Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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Madhavan Srinivasan authored
Commit 7a786832 ("powerpc/perf: Add an explict flag indicating presence of SLOT field") introduced the PPMU_HAS_SSLOT flag to remove the assumption that MMCRA[SLOT] was present when PPMU_ALT_SIPR was not set. That commit's changelog also mentions that Power8 does not support MMCRA[SLOT]. However when the Power8 PMU support was merged, it errnoeously included the PPMU_HAS_SSLOT flag. So remove PPMU_HAS_SSLOT from the Power8 flags. mpe: On systems where MMCRA[SLOT] exists, the field occupies bits 37:39 (IBM numbering). On Power8 bit 37 is reserved, and 38:39 overlap with the high bits of the Threshold Event Counter Mantissa. I am not aware of any published events which use the threshold counting mechanism, which would cause the mantissa bits to be set. So in practice this bug is unlikely to trigger. Fixes: e05b9b9e ("powerpc/perf: Power8 PMU support") Signed-off-by:
Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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- 27 Jan, 2016 1 commit
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Gavin Shan authored
In eeh_pe_loc_get(), the PE location code is retrieved from the "ibm,loc-code" property of the device node for the bridge of the PE's primary bus. It's not correct because the property indicates the parent PE's location code. This reads the correct PE location code from "ibm,io-base-loc-code" or "ibm,slot-location-code" property of PE parent bus's device node. Cc: stable@vger.kernel.org # v3.16+ Fixes: 357b2f3d ("powerpc/eeh: Dump PE location code") Signed-off-by:
Gavin Shan <gwshan@linux.vnet.ibm.com> Tested-by:
Russell Currey <ruscur@russell.cc> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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- 25 Jan, 2016 1 commit
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Vasant Hegde authored
With commit 90a545e9 (restrict /dev/mem to idle io memory ranges) mapping rtas_rmo_buf from user space is failing. Hence we are not able to make RTAS syscall. This patch calls page_is_rtas_user_buf before calling iomem_is_exclusive in devmem_is_allowed(). This will allow user space to map rtas_rmo_buf and we are able to make RTAS syscall. Reported-by:
Bharata B Rao <bharata@linux.vnet.ibm.com> CC: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by:
Vasant Hegde <hegdevasant@linux.vnet.ibm.com> Acked-by:
Dan Williams <dan.j.williams@intel.com> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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- 21 Jan, 2016 3 commits
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Stephen Rothwell authored
Commit d5d6a443 ("arch/powerpc/include/asm/pgtable-ppc64.h: add pmd_[dirty|mkclean] for THP") added a new identical definition of pmd_dirty(). Remove it again. Cc: Minchan Kim <minchan@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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Alan Modra authored
PowerPC64 uses the symbol .TOC. much as other targets use _GLOBAL_OFFSET_TABLE_. It identifies the value of the GOT pointer (or in powerpc parlance, the TOC pointer). Global offset tables are generally local to an executable or shared library, or in the kernel, module. Thus it does not make sense for a module to resolve a relocation against .TOC. to the kernel's .TOC. value. A module has its own .TOC., and indeed the powerpc64 module relocation processing ignores the kernel value of .TOC. and instead calculates a module-local value. This patch removes code involved in exporting the kernel .TOC., tweaks modpost to ignore an undefined .TOC., and the module loader to twiddle the section symbol so that .TOC. isn't seen as undefined. Note that if the kernel was compiled with -msingle-pic-base then ELFv2 would not have function global entry code setting up r2. In that case the module call stubs would need to be modified to set up r2 using the kernel .TOC. value, requiring some of this code to be reinstated. mpe: Furthermore a change in binutils master (not yet released) causes the current way we handle the TOC to no longer work when building with MODVERSIONS=y and RELOCATABLE=n. The symptom is that modules can not be loaded due to there being no version found for TOC. Cc: stable@vger.kernel.org # 3.16+ Signed-off-by:
Alan Modra <amodra@gmail.com> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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Chandan Rajendra authored
Test runs on a ppc64 BE guest succeeded using modified fstests. Also tested on ppc64 LE using a home made test - mpe. Signed-off-by:
Chandan Rajendra <chandan@linux.vnet.ibm.com> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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- 20 Jan, 2016 24 commits
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git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds authored
Pull dmaengine fixes from Vinod Koul: "Here is my second pull request for this window: A few driver fixes have piled up and one missed rcar bindings patch which got somehow lost in for-linus branch so cherry-picked that one. Fixes are for dw, at_hdmac, edma" * tag 'dmaengine-fix-4.5-rc1' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: rcar-dmac: Document SoC specific bindings dmaengine: at_xdmac: fix resume for cyclic transfers dmaengine: dw: fix cyclic transfer callbacks dmaengine: dw: fix cyclic transfer setup dmaengine: edma: Fix paRAM slot allocation for entry channel 0
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git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuildLinus Torvalds authored
Pull misc kbuild updates from Michal Marek: - Fix for make O=... perf-tar* - make tags revamp and fix for the fallout. Patch for warnings about line breaks inside DEFINE_PER_CPU macros is pending - New coccinelle test * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: coccinelle: tests: unsigned value cannot be lesser than zero tags: Unify emacs and exuberant rules tags: Drop the _PE rule tags: Do not try to index defconfigs tags: Process Kconfig files in a single pass tags: Fix erroneous pattern match in a comment aic7xxx: Avoid name collision with <linux/list.h> tags: Treat header files as C code package Makefile: fix perf-tar targets when outdir is set scripts/tags.sh: Teach tags about more powerpc macros
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git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuildLinus Torvalds authored
Pull kconfig updates from Michal Marek: - Fix for make xconfig segfault - Handle long strings in config symbol values - Fix for mixing boolean and kconfig ternary type * 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kconfig: fix qconf segfault by deleting heap objects kconfig: return 'false' instead of 'no' in bool function kconfig: allow kconfig to handle longer path names
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git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuildLinus Torvalds authored
Pull kbuild updates from Michal Marek: - Make <modname>-m in makefiles work like <modname>-y and fix the fallout - Minor genksyms fix - Fix race with make -j install modules_install - Move -Wsign-compare from make W=1 to W=2 - Other minor fixes * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kbuild: Demote 'sign-compare' warning to W=2 Makefile: revert "Makefile: Document ability to make file.lst and file.S" partially kbuild: Do not run modules_install and install in paralel genksyms: Handle string literals with spaces in reference files fixdep: constify strrcmp arguments ath10k: Fix build with CONFIG_THERMAL=m Revert "drm: Hack around CONFIG_AGP=m build failures" kbuild: Allow to specify composite modules with modname-m staging/ad7606: Actually build the interface modules
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David Howells authored
Mark the FRV architecture orphaned in the MAINTAINERS file. Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Simon Horman authored
Update the mailing list used for development of support for Renesas SoCs and related drivers. Up until now the linux-sh mailing list has been used, however, Renesas SoCs are now much wider than the SH architecture and there is some desire from some for the linux-sh list to refocus on discussion of the work on the SH architecture. Signed-off-by:
Simon Horman <horms+renesas@verge.net.au> Acked-by:
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Acked-by:
Magnus Damm <damm@opensource.se> Acked-by:
Geert Uytterhoeven <geert+renesas@glider.be> Acked-by:
Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by:
Rich Felker <dalias@libc.org> Acked-by:
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Arnd Bergmann authored
A newly added tracepoint in the hugepage code uses a variable in the error handling that is not initialized at that point: include/trace/events/huge_memory.h:81:230: error: 'isolated' may be used uninitialized in this function [-Werror=maybe-uninitialized] The result is relatively harmless, as the trace data will in rare cases contain incorrect data. This works around the problem by adding an explicit initialization. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Fixes: 7d2eba05 ("mm: add tracepoint for scanning pages") Reviewed-by:
Ebru Akagunduz <ebru.akagunduz@gmail.com> Acked-by:
David Rientjes <rientjes@google.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds authored
Merge tag 'platform-drivers-x86-v4.5-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86 Pull x86 platform driver updates from Darren Hart: "Add intel punit and telemetry driver for APL SoCs. Add intel-hid driver for various laptop hotkey support. Add asus-wireless radio control driver. Keyboard backlight support/improvements for ThinkPads, Vaio, and Toshiba. Several hotkey related fixes and improvements for dell and toshiba. Fix oops on dual GPU Macs in apple-gmux. A few new device IDs and quirks. Various minor config related build issues and cleanups. surface pro 4: - fix compare_const_fl.cocci warnings - Add support for Surface Pro 4 Buttons platform/x86: - Add Intel Telemetry Debugfs interfaces - Add Intel telemetry platform device - Add Intel telemetry platform driver - Add Intel Telemetry Core Driver - add NULL check for input parameters - add Intel P-Unit mailbox IPC driver - update acpi resource structure for Punit thinkpad_acpi: - Add support for keyboard backlight dell-wmi: - Process only one event on devices with interface version 0 - Check if Dell WMI descriptor structure is valid - Improve unknown hotkey handling - Use a C99-style array for bios_to_linux_keycode tc1100-wmi: - fix build warning when CONFIG_PM not enabled asus-wireless: - Add ACPI HID ATK4001 - Add Asus Wireless Radio Control driver asus-wmi: - drop to_platform_driver macro intel-hid: - new hid event driver for hotkeys sony-laptop: - Keyboard backlight control for some Vaio Fit models ideapad-laptop: - Add Lenovo ideapad Y700-17ISK to no_hw_rfkill dmi list apple-gmux: - Assign apple_gmux_data before registering toshiba_acpi: - Add rfkill dependency to ACPI_TOSHIBA entry - Fix keyboard backlight sysfs entries not being updated - Add WWAN RFKill support - Add support for WWAN devices - Fix blank screen at boot if transflective backlight is supported - Propagate the hotkey value via genetlink toshiba_bluetooth: - Add missing newline in toshiba_bluetooth_present function" * tag 'platform-drivers-x86-v4.5-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: (29 commits) surface pro 4: fix compare_const_fl.cocci warnings surface pro 4: Add support for Surface Pro 4 Buttons platform:x86: Add Intel Telemetry Debugfs interfaces platform:x86: Add Intel telemetry platform device platform:x86: Add Intel telemetry platform driver platform/x86: Add Intel Telemetry Core Driver intel_punit_ipc: add NULL check for input parameters thinkpad_acpi: Add support for keyboard backlight dell-wmi: Process only one event on devices with interface version 0 dell-wmi: Check if Dell WMI descriptor structure is valid tc1100-wmi: fix build warning when CONFIG_PM not enabled asus-wireless: Add ACPI HID ATK4001 platform/x86: Add Asus Wireless Radio Control driver asus-wmi: drop to_platform_driver macro intel-hid: new hid event driver for hotkeys Keyboard backlight control for some Vaio Fit models platform/x86: Add rfkill dependency to ACPI_TOSHIBA entry platform:x86: add Intel P-Unit mailbox IPC driver intel_pmc_ipc: update acpi resource structure for Punit ideapad-laptop: Add Lenovo ideapad Y700-17ISK to no_hw_rfkill dmi list ...
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Julia Lawall authored
Move constants to the right of binary operators. Generated by: scripts/coccinelle/misc/compare_const_fl.cocci CC: Weng Xuetian <wengxt@gmail.com> Signed-off-by:
Fengguang Wu <fengguang.wu@intel.com> Signed-off-by:
Julia Lawall <julia.lawall@lip6.fr> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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Weng Xuetian authored
Surface Pro 4 buttons are managed by a device with _HID "MSHW0040" different from Surface Pro 3. This commit adds MSHW0040 to id list to support the Surface Pro 4. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=109871Signed-off-by:
Weng Xuetian <wengxt@gmail.com> Acked-by:
Chen Yu <yu.c.chen@intel.com> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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Souvik Kumar Chakravarty authored
This implements debugfs interfaces for reading the telemetry samples from SSRAM and configuring firmware trace verbosity. Interface created under /sys/kernel/debug/telemetry soc_states: SoC Device and Low Power States pss_info: Info from the Primary SubSystem ioss_info: Info from IO SubSusytem pss_trace_verbosity: Read/Modify PSS F/W trace verbosity ioss_trace_verbosity: Read/Modify IOSS F/W trace verbosity. Signed-off-by:
Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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Souvik Kumar Chakravarty authored
Telemetry Device is created by the pmc_ipc driver. Resources are populated according SSRAM region as indicated by the BIOS tables. Signed-off-by:
Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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Souvik Kumar Chakravarty authored
Telemetry platform driver implements the telemetry interfaces. Currently it supports ApolloLake. It uses the PUNIT and PMC IPC interfaces to configure the telemetry samples to read. The samples are read from a Secure SRAM region. Signed-off-by:
Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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Souvik Kumar Chakravarty authored
Intel PM Telemetry is a software mechanism via which various SoC PM and performance related parameters like PM counters, firmware trace verbosity, the status of different devices inside the SoC, etc. can be monitored and analyzed. The different samples that may be monitored can be configured at runtime via exported APIs. This patch adds the telemetry core driver that implements basic exported APIs. Signed-off-by:
Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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Qipeng Zha authored
intel_punit_ipc_command() maybe called when in or out data pointers are NULL. Signed-off-by:
Qipeng Zha <qipeng.zha@intel.com> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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Pali Rohár authored
This patch adds support for controlling keyboard backlight via standard linux led class interface (::kbd_backlight). It uses ACPI HKEY device with MLCG and MLCS methods. Signed-off-by:
Pali Rohár <pali.rohar@gmail.com> Tested-by:
Fabio D'Urso <fabiodurso@hotmail.it> Acked-by:
Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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Pali Rohár authored
BIOS/ACPI on devices with WMI interface version 0 does not clear buffer before filling it. So next time when BIOS/ACPI send WMI event which is smaller as previous then it contains garbage in buffer from previous event. BIOS/ACPI on devices with WMI interface version 1 clears buffer and sometimes send more events in buffer at one call. Since commit 83fc44c3 ("dell-wmi: Update code for processing WMI events") dell-wmi process all events in buffer (and not just first). To prevent reading garbage from the buffer we process only the first event on devices with WMI interface version 0. Signed-off-by:
Pali Rohár <pali.rohar@gmail.com> Tested-by:
Gabriele Mazzotta <gabriele.mzt@gmail.com> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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Pali Rohár authored
After examining existing DSDT ACPI tables of more laptops and looking into Dell WMI document mentioned in ML dicussion archived at http://www.spinics.net/lists/platform-driver-x86/msg07220.html we will parse and check WMI descriptor if contains expected data. It is because WMI descriptor contains interface version number and it is needed to know in next commit. Signed-off-by:
Pali Rohár <pali.rohar@gmail.com> Tested-by:
Gabriele Mazzotta <gabriele.mzt@gmail.com> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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Colin Ian King authored
Conditionally declare suspend_data on CONFIG_PM to avoid the following warning when CONFIG_OM is not enabled: drivers/platform/x86/tc1100-wmi.c:55:27: warning: 'suspend_data' defined but not used [-Wunused-variable] Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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João Paulo Rechi Vita authored
As reported in https://bugzilla.kernel.org/show_bug.cgi?id=98931#c22 in the Asus UX31A the Asus Wireless Radio Control device (ASHS) uses the HID "ATK4001". Signed-off-by:
João Paulo Rechi Vita <jprvita@endlessm.com> Reported-by:
Tasev Nikola <tasev.stefanoska@skynet.be> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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João Paulo Rechi Vita authored
Some Asus notebooks like the Asus E202SA and the Asus X555UB have a separate ACPI device for notifications from the airplane mode hotkey. This device is called "Wireless Radio Control" in Asus websites and ASHS in the DSDT, and its ACPI _HID is ATK4002 in the two models mentioned above. For these models, when the airplane mode hotkey (Fn+F2) is pressed, a query 0x0B is started in the Embedded Controller, and all this query does is a notify ASHS with the value 0x88 (for acpi_osi >= "Windows 2012"): Scope (_SB.PCI0.SBRG.EC0) { (...) Method (_Q0B, 0, NotSerialized) // _Qxx: EC Query { If ((MSOS () >= OSW8)) { Notify (ASHS, 0x88) // Device-Specific } Else { (...) } } } Signed-off-by:
João Paulo Rechi Vita <jprvita@endlessm.com> Reviewed-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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Geliang Tang authored
to_platform_driver has been defined in platform_device.h, so drop this repetitive macro in asus-wmi.c. Signed-off-by:
Geliang Tang <geliangtang@163.com> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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Alex Hung authored
This driver supports various HID events including hotkeys. Dell XPS 13 9350 requires it for the wireless hotkey. Signed-off-by:
Alex Hung <alex.hung@canonical.com> Reviewed-and-tested-by:
Andy Lutomirski <luto@kernel.org> [dvhart: Kconfig help typo fix and INPUT_SPARSEKMAP fix from Sedat Dilek] Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-securityLinus Torvalds authored
Pull security subsystem update from James Morris: "A CVE fix and a maintainers file update" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: KEYS: Fix keyring ref leak in join_session_keyring() Fix the MAINTAINERS record for the certs/ directory
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- 19 Jan, 2016 5 commits
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Yevgeny Pats authored
This fixes CVE-2016-0728. If a thread is asked to join as a session keyring the keyring that's already set as its session, we leak a keyring reference. This can be tested with the following program: #include <stddef.h> #include <stdio.h> #include <sys/types.h> #include <keyutils.h> int main(int argc, const char *argv[]) { int i = 0; key_serial_t serial; serial = keyctl(KEYCTL_JOIN_SESSION_KEYRING, "leaked-keyring"); if (serial < 0) { perror("keyctl"); return -1; } if (keyctl(KEYCTL_SETPERM, serial, KEY_POS_ALL | KEY_USR_ALL) < 0) { perror("keyctl"); return -1; } for (i = 0; i < 100; i++) { serial = keyctl(KEYCTL_JOIN_SESSION_KEYRING, "leaked-keyring"); if (serial < 0) { perror("keyctl"); return -1; } } return 0; } If, after the program has run, there something like the following line in /proc/keys: 3f3d898f I--Q--- 100 perm 3f3f0000 0 0 keyring leaked-keyring: empty with a usage count of 100 * the number of times the program has been run, then the kernel is malfunctioning. If leaked-keyring has zero usages or has been garbage collected, then the problem is fixed. Reported-by:
Yevgeny Pats <yevgeny@perception-point.io> Signed-off-by:
David Howells <dhowells@redhat.com> Acked-by:
Don Zickus <dzickus@redhat.com> Acked-by:
Prarit Bhargava <prarit@redhat.com> Acked-by:
Jarod Wilson <jarod@redhat.com> Signed-off-by:
James Morris <james.l.morris@oracle.com>
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Mattia Dongili authored
SVF1521P6EW, SVF1521DCXW, SVF13N1L2ES and likely most SVF*. do not expose separate timeout controls in auto mode. Signed-off-by:
Dominik Matta <dominik@matta.sk> Signed-off-by:
Mattia Dongili <malattia@linux.it> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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Azael Avalos authored
Commit 2fdde834 ("toshiba_acpi: Add WWAN RFKill support") added WWAN rfkill support to the driver, but the KConfig entry was not updated to add the RFKill dependency, causing a broken build if RFKill is not selected. This patch adds the RFKILL dependency to the KConfig entry, fixing the build issue. Signed-off-by:
Azael Avalos <coproscefalo@gmail.com> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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Qipeng Zha authored
This driver provides support for P-Unit mailbox IPC on Intel platforms. The heart of the P-Unit is the Foxton microcontroller and its firmware, which provide mailbox interface for power management usage. Signed-off-by:
Qipeng Zha <qipeng.zha@intel.com> Reviewed-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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Qipeng Zha authored
BIOS restructure exported memory resources for Punit in acpi table, So update resources for Punit. Signed-off-by:
Qipeng Zha <qipeng.zha@intel.com> Reviewed-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
Darren Hart <dvhart@linux.intel.com>
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