09 May, 2017
3 commits
-
Congestion control modules that want full control over congestion
control behavior do not want the cwnd modifications controlled by
the sysctl_tcp_slow_start_after_idle code path.
So skip those code paths for CC modules that use the cong_control()
API.
As an example, those cwnd effects are not desired for the BBR congestion
control algorithm.Fixes: c0402760f565 ("tcp: new CC hook to set sending rate with rate_sample in any CA state")
Signed-off-by: Wei Wang
Signed-off-by: Yuchung Cheng
Signed-off-by: Neal Cardwell
Signed-off-by: David S. Miller -
IPv4 dst could use fi->fib_metrics to store metrics but fib_info
itself is refcnt'ed, so without taking a refcnt fi and
fi->fib_metrics could be freed while dst metrics still points to
it. This triggers use-after-free as reported by Andrey twice.This patch reverts commit 2860583fe840 ("ipv4: Kill rt->fi") to
restore this reference counting. It is a quick fix for -net and
-stable, for -net-next, as Eric suggested, we can consider doing
reference counting for metrics itself instead of relying on fib_info.IPv6 is very different, it copies or steals the metrics from mx6_config
in fib6_commit_metrics() so probably doesn't need a refcnt.Decnet has already done the refcnt'ing, see dn_fib_semantic_match().
Fixes: 2860583fe840 ("ipv4: Kill rt->fi")
Reported-by: Andrey Konovalov
Tested-by: Andrey Konovalov
Signed-off-by: Cong Wang
Acked-by: Eric Dumazet
Signed-off-by: David S. Miller -
This patch fixes the crash that happens when driver tries to collect statistics
from already released "aq_vec" object.
If adapter is in "down" state we still allow user to see statistics from HW.V2: fixed braces around "aq_vec_free".
Fixes: 97bde5c4f909 ("net: ethernet: aquantia: Support for NIC-specific code")
Signed-off-by: Pavel Belous
Tested-by: David Arcari
Signed-off-by: David S. Miller
06 May, 2017
2 commits
-
It was introduced while switching to pci_alloc_irq_vectors recently
and fixes:[ 60.527052] alx 0000:03:00.0 enp3s0: Enabling MSI-X interrupts failed!
[ 60.529323] BUG: unable to handle kernel NULL pointer dereference at 00000000000000b8
[ 60.531589] IP: alx_alloc_napis+0xe6/0x1e0 [alx]
[ 60.533831] PGD 0
[ 60.533833] P4D 0[ 60.540559] Oops: 0002 [#1] SMP
[ 60.542759] Modules linked in: ebtables ip6table_filter ip6_tables.....
[ 60.549990] drm_kms_helper drm crc32c_intel alx serio_raw mdio wmi video i2c_hid uas usb_storage
[ 60.551404] CPU: 0 PID: 999 Comm: NetworkManager Not tainted 4.11.0+ #1
[ 60.552813] Hardware name: Acer Predator G9-591/Mustang_SLS, BIOS V1.10 03/03/2016
[ 60.554219] task: ffff8804ae833c00 task.stack: ffffc90003eec000
[ 60.555383] RIP: 0010:alx_alloc_napis+0xe6/0x1e0 [alx]
[ 60.556615] RSP: 0018:ffffc90003eef660 EFLAGS: 00010286
[ 60.557787] RAX: ffff8804962835a0 RBX: ffff8804aee8a8c0 RCX: 0000000000000000
[ 60.558987] RDX: 0000000000000060 RSI: 0000000000000000 RDI: ffff880496283600
[ 60.559979] RBP: ffffc90003eef688 R08: ffff8804c1c1e7e0 R09: ffff8804962835a0
[ 60.560978] R10: ffff8804962835a0 R11: 0000000000000102 R12: 0000000000000000
[ 60.561974] R13: 0000000000000000 R14: ffff8804aee8aaf0 R15: ffffffffa0052ea0
[ 60.562974] FS: 00007f1cecbc9940(0000) GS:ffff8804c1c00000(0000) knlGS:0000000000000000
[ 60.564003] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 60.564884] CR2: 00000000000000b8 CR3: 0000000496025000 CR4: 00000000003406f0
[ 60.565782] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 60.566676] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 60.567560] Call Trace:
[ 60.568500] __alx_open+0xa2/0x570 [alx]
[ 60.569355] ? notifier_call_chain+0x4a/0x70
[ 60.570144] alx_open+0x17/0x20 [alx]
[ 60.570909] __dev_open+0xc6/0x140
[ 60.571682] ? _raw_spin_unlock_bh+0x1a/0x20
[ 60.572469] __dev_change_flags+0x9d/0x160
[ 60.573252] dev_change_flags+0x29/0x60
[ 60.574070] do_setlink+0x32e/0xc90
[ 60.574815] ? ttwu_do_activate+0x77/0x80
[ 60.575544] ? drm_fb_helper_dirty.isra.17+0xc7/0xe0 [drm_kms_helper]
[ 60.576273] ? drm_fb_helper_cfb_imageblit+0x30/0x40 [drm_kms_helper]
[ 60.577004] ? bit_putcs+0x2f7/0x560
[ 60.577729] ? nla_parse+0x35/0x140
[ 60.578518] rtnl_newlink+0x7d3/0x900
[ 60.579280] ? security_capset+0x30/0x80
[ 60.580029] ? ns_capable_common+0x68/0x80
[ 60.580747] ? ns_capable+0x13/0x20
[ 60.581453] rtnetlink_rcv_msg+0xee/0x220
[ 60.582198] ? rtnl_newlink+0x900/0x900
[ 60.582909] netlink_rcv_skb+0xe7/0x120
[ 60.583601] rtnetlink_rcv+0x28/0x30
[ 60.584303] netlink_unicast+0x18c/0x220
[ 60.585002] netlink_sendmsg+0x2ba/0x3b0
[ 60.585703] sock_sendmsg+0x38/0x50
[ 60.586436] ___sys_sendmsg+0x2b6/0x2d0
[ 60.587123] ? lockref_put_or_lock+0x5e/0x80
[ 60.587822] ? dput+0x155/0x1d0
[ 60.588518] ? mntput+0x24/0x40
[ 60.589215] __sys_sendmsg+0x54/0x90
[ 60.589907] ? __sys_sendmsg+0x54/0x90
[ 60.590627] SyS_sendmsg+0x12/0x20
[ 60.591333] entry_SYSCALL_64_fastpath+0x1a/0xa5
[ 60.592021] RIP: 0033:0x7f1ceb44e3b0
[ 60.592697] RSP: 002b:00007fffd7f0a2d0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
[ 60.593385] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f1ceb44e3b0
[ 60.594107] RDX: 0000000000000000 RSI: 00007fffd7f0a380 RDI: 000000000000000c
[ 60.594798] RBP: 00007fffd7f0a800 R08: 0000000000000000 R09: 0000000000000000
[ 60.595502] R10: 0000564ffbae6e20 R11: 0000000000000293 R12: 0000000000000001
[ 60.596200] R13: 0000000000000002 R14: 0000000000000010 R15: 00007fffd7f0a4d0
[ 60.596899] Code: ed 85 c9 0f 8f ec 00 00 00 48 8b 3d 9d 97 1a e2 ba 50 00 00 00 be c0 80 40 01 4c 8b a3 30 02 00 00 e8 ff e5 1d e1 48 85 c0 74 a3 89 84 24 b8 00 00 00 48 8b 93 30 02 00 00 48 8b 4b 08 48 89
[ 60.597642] RIP: alx_alloc_napis+0xe6/0x1e0 [alx] RSP: ffffc90003eef660
[ 60.598427] CR2: 00000000000000b8Fixes: f3297f68 ("net: alx: switch to pci_alloc_irq_vectors")
Signed-off-by: Rakesh Pandit
Signed-off-by: David S. Miller -
Whole point of randomization was to hide server uptime, but an attacker
can simply start a syn flood and TCP generates 'old style' timestamps,
directly revealing server jiffies value.Also, TSval sent by the server to a particular remote address vary
depending on syncookies being sent or not, potentially triggering PAWS
drops for innocent clients.Lets implement proper randomization, including for SYNcookies.
Also we do not need to export sysctl_tcp_timestamps, since it is not
used from a module.In v2, I added Florian feedback and contribution, adding tsoff to
tcp_get_cookie_sock().v3 removed one unused variable in tcp_v4_connect() as Florian spotted.
Fixes: 95a22caee396c ("tcp: randomize tcp timestamp offsets for each connection")
Signed-off-by: Eric Dumazet
Reviewed-by: Florian Westphal
Tested-by: Florian Westphal
Cc: Yuchung Cheng
Signed-off-by: David S. Miller
05 May, 2017
16 commits
-
The attribute sizes for IFLA_BRPORT_MCAST_FLOOD and
IFLA_BRPORT_BCAST_FLOOD weren't accounted for in br_port_info_size()
when they were added. Do so now and also add the corresponding policy
entries:Cc: Nikolay Aleksandrov
Cc: Mike Manning
Fixes: b6cb5ac8331b ("net: bridge: add per-port multicast flood flag")
Fixes: 99f906e9ad7b ("bridge: add per-port broadcast flood flag")
Signed-off-by: Tobias Klauser
Acked-by: Nikolay Aleksandrov
Signed-off-by: David S. Miller -
Pull char/misc driver updates from Greg KH:
"Here is the big set of new char/misc driver drivers and features for
4.12-rc1.There's lots of new drivers added this time around, new firmware
drivers from Google, more auxdisplay drivers, extcon drivers, fpga
drivers, and a bunch of other driver updates. Nothing major, except if
you happen to have the hardware for these drivers, and then you will
be happy :)All of these have been in linux-next for a while with no reported
issues"* tag 'char-misc-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (136 commits)
firmware: google memconsole: Fix return value check in platform_memconsole_init()
firmware: Google VPD: Fix return value check in vpd_platform_init()
goldfish_pipe: fix build warning about using too much stack.
goldfish_pipe: An implementation of more parallel pipe
fpga fr br: update supported version numbers
fpga: region: release FPGA region reference in error path
fpga altera-hps2fpga: disable/unprepare clock on error in alt_fpga_bridge_probe()
mei: drop the TODO from samples
firmware: Google VPD sysfs driver
firmware: Google VPD: import lib_vpd source files
misc: lkdtm: Add volatile to intentional NULL pointer reference
eeprom: idt_89hpesx: Add OF device ID table
misc: ds1682: Add OF device ID table
misc: tsl2550: Add OF device ID table
w1: Remove unneeded use of assert() and remove w1_log.h
w1: Use kernel common min() implementation
uio_mf624: Align memory regions to page size and set correct offsets
uio_mf624: Refactor memory info initialization
uio: Allow handling of non page-aligned memory regions
hangcheck-timer: Fix typo in comment
... -
Pull driver core updates from Greg KH:
"Very tiny pull request for 4.12-rc1 for the driver core this time
around.There are some documentation fixes, an eventpoll.h fixup to make it
easier for the libc developers to take our header files directly, and
some very minor driver core fixes and changes.All have been in linux-next for a very long time with no reported
issues"* tag 'driver-core-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
Revert "kref: double kref_put() in my_data_handler()"
driver core: don't initialize 'parent' in device_add()
drivers: base: dma-mapping: use nth_page helper
Documentation/ABI: add information about cpu_capacity
debugfs: set no_llseek in DEFINE_DEBUGFS_ATTRIBUTE
eventpoll.h: add missing epoll event masks
eventpoll.h: fix epoll event masks -
Pull USB updates from Greg KH:
"Here is the big USB patchset for 4.12-rc1.Lots of good stuff here, after many many many attempts, the kernel
finally has a working typeC interface, many thanks to Heikki and
Guenter and others who have taken the time to get this merged. It
wasn't an easy path for them at all.There's also a staging driver that uses this new api, which is why
it's coming in through this tree.Along with that, there's the usual huge number of changes for gadget
drivers, xhci, and other stuff. Johan also finally refactored pretty
much every driver that was looking at USB endpoints to do it in a
common way, which will help prevent any "badly-formed" devices from
causing problems in drivers. That too wasn't a simple task.All of these have been in linux-next for a while with no reported
issues"* tag 'usb-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (263 commits)
staging: typec: Fairchild FUSB302 Type-c chip driver
staging: typec: Type-C Port Controller Interface driver (tcpci)
staging: typec: USB Type-C Port Manager (tcpm)
usb: host: xhci: remove #ifdef around PM functions
usb: musb: don't mark of_dev_auxdata as initdata
usb: misc: legousbtower: Fix buffers on stack
USB: Revert "cdc-wdm: fix "out-of-sync" due to missing notifications"
usb: Make sure usb/phy/of gets built-in
USB: storage: e-mail update in drivers/usb/storage/unusual_devs.h
usb: host: xhci: print correct command ring address
usb: host: xhci: delete sp_dma_buffers for scratchpad
usb: host: xhci: using correct specification chapter reference for DCBAAP
xhci: switch to pci_alloc_irq_vectors
usb: host: xhci-plat: set resume_quirk() for R-Car controllers
usb: host: xhci-plat: add resume_quirk()
usb: host: xhci-plat: enable clk in resume timing
usb: host: plat: Enable xHCI plat runtime PM
USB: serial: ftdi_sio: add device ID for Microsemi/Arrow SF2PLUS Dev Kit
USB: serial: constify static arrays
usb: fix some references for /proc/bus/usb
... -
Pull networking fixes from David Miller:
1) The wireless rate info fix from Johannes Berg.
2) When a RAW socket is in hdrincl mode, we need to make sure that the
user provided at least a minimally sized ipv4/ipv6 header. Fix from
Alexander Potapenko.3) We must emit IFLA_PHYS_PORT_NAME netlink attributes using
nla_put_string() so that it is NULL terminated.4) Fix a bug in TCP fastopen handling, wherein child sockets
erroneously inherit the fastopen_req from the parent, and later can
end up derefencing freed memory or doing a double free. From Eric
Dumazet.5) Don't clear out netdev stats at close time in tg3 driver, from
YueHaibing.6) Fix refcount leak in xt_CT, from Gao Feng.
7) In nft_set_bitmap() don't leak dummy elements, from Liping Zhang.
8) Fix deadlock due to taking the expectation lock twice, also from
Liping Zhang.9) Make xt_socket work again with ipv6, from Peter Tirsek.
10) Don't allow IPV6 to be used with IPVS if ipv6.disable=1, from Paolo
Abeni.11) Make the BPF loader more flexible wrt. changes to the bpf MAP entry
layout. From Jesper Dangaard Brouer.12) Fix ethtool reported device name in aquantia driver, from Pavel
Belous.13) Fix build failures due to the compile time size test not working in
netfilter conntrack. From Geert Uytterhoeven.* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits)
cfg80211: make RATE_INFO_BW_20 the default
ipv6: initialize route null entry in addrconf_init()
qede: Fix possible misconfiguration of advertised autoneg value.
qed: Fix overriding of supported autoneg value.
qed*: Fix possible overflow for status block id field.
rtnetlink: NUL-terminate IFLA_PHYS_PORT_NAME string
netvsc: make sure napi enabled before vmbus_open
aquantia: Fix driver name reported by ethtool
ipv4, ipv6: ensure raw socket message is big enough to hold an IP header
net/sched: remove redundant null check on head
tcp: do not inherit fastopen_req from parent
forcedeth: remove unnecessary carrier status check
ibmvnic: Move queue restarting in ibmvnic_tx_complete
ibmvnic: Record SKB RX queue during poll
ibmvnic: Continue skb processing after skb completion error
ibmvnic: Check for driver reset first in ibmvnic_xmit
ibmvnic: Wait for any pending scrqs entries at driver close
ibmvnic: Clean up tx pools when closing
ibmvnic: Whitespace correction in release_rx_pools
ibmvnic: Delete napi's when releasing driver resources
... -
Pull SCSI updates from James Bottomley:
"This update includes the usual round of major driver updates
(hisi_sas, ufs, fnic, cxlflash, be2iscsi, ipr, stex). There's also the
usual amount of cosmetic and spelling stuff"* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (155 commits)
scsi: qla4xxx: fix spelling mistake: "Tempalate" -> "Template"
scsi: stex: make S6flag static
scsi: mac_esp: fix to pass correct device identity to free_irq()
scsi: aacraid: pci_alloc_consistent() failures on ARM64
scsi: ufs: make ufshcd_get_lists_status() register operation obvious
scsi: ufs: use MASK_EE_STATUS
scsi: mac_esp: Replace bogus memory barrier with spinlock
scsi: fcoe: make fcoe_e_d_tov and fcoe_r_a_tov static
scsi: sd_zbc: Do not write lock zones for reset
scsi: sd_zbc: Remove superfluous assignments
scsi: sd: sd_zbc: Rename sd_zbc_setup_write_cmnd
scsi: Improve scsi_get_sense_info_fld
scsi: sd: Cleanup sd_done sense data handling
scsi: sd: Improve sd_completed_bytes
scsi: sd: Fix function descriptions
scsi: mpt3sas: remove redundant wmb
scsi: mpt: Move scsi_remove_host() out of mptscsih_remove_host()
scsi: sg: reset 'res_in_use' after unlinking reserved array
scsi: mvumi: remove code handling zero scsi_sg_count(scmd) case
scsi: fusion: fix spelling mistake: "Persistancy" -> "Persistency"
... -
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for the v4.12 kernel cycle.Core changes:
- Return NULL from gpiod_get_optional() when GPIOLIB is disabled.
This was a much discussed change. It affects use cases where people
write drivers that might or might not be using GPIO resources. I
have decided that this is the lesser evil right now.- Make gpiod_count() behave consistently across different hardware
descriptions.- Fix the syntax around open drain/open source to not infer active
high/low semantics.New drivers:
- A new single-register fixed-direction framework driver for hardware
that have lines controlled by a single register that just work in
one direction (out or in), including IRQ support.- Support the Fintek F71889A GPIO SuperIO controller.
- Support the National NI 169445 MMIO GPIO.
- Support for the X-Gene derivative of the DWC GPIO controller
- Support for the Rohm BD9571MWV-M PMIC GPIO controller.
- Refactor the Gemini GPIO driver to a generic Faraday FTGPIO driver
and replace both the Gemini and the Moxa ART custom drivers with
this driver.Driver improvements:
- A whole slew of drivers have their spinlocks chaned to raw
spinlocks as they provide irqchips, and thus we are progressing on
realtime compliance.- Use devm_irq_alloc_descs() in a slew of drivers, getting managed
resources.- Support for the embedded PWM controller inside the MVEBU driver.
- Debounce, open source and open drain support for the Aspeed driver.
- Misc smaller fixes like spelling and syntax and whatnot"
* tag 'gpio-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (77 commits)
gpio: f7188x: Add a missing break
gpio: omap: return error if requested debounce time is not possible
gpio: Add ROHM BD9571MWV-M PMIC GPIO driver
gpio: gpio-wcove: fix GPIO IRQ status mask
gpio: DT bindings, move tca9554 from pcf857x to pca953x
gpio: move tca9554 from pcf857x to pca953x
gpio: arizona: Correct check whether the pin is an input
gpio: Add XRA1403 DTS binding documentation
dt-bindings: add exar to vendor prefixes list
gpio: gpio-wcove: fix irq pending status bit width
gpio: dwapb: use dwapb_read instead of readl_relaxed
gpio: aspeed: Add open-source and open-drain support
gpio: aspeed: Add debounce support
gpio: aspeed: dt: Add optional clocks property
gpio: aspeed: dt: Fix description alignment in bindings document
gpio: mvebu: Add limited PWM support
gpio: Use unsigned int for interrupt numbers
gpio: f7188x: Add F71889A GPIO support.
gpio: core: Decouple open drain/source flag with active low/high
gpio: arizona: Correct handling for reading input GPIOs
... -
Pull x86 platform-drivers update from Darren Hart:
"This represents a significantly larger and more complex set of changes
than those of prior merge windows.In particular, we had several changes with dependencies on other
subsystems which we felt were best managed through merges of immutable
branches, including one each from input, i2c, and leds. Two patches
for the watchdog subsystem are included after discussion with Wim and
Guenter following a collision in linux-next (this should be resolved
and you should only see these two appear in this pull request). These
are called out in the "External" section below.Summary of changes:
- significant further cleanup of fujitsu-laptop and hp-wmi
- new model support for ideapad, asus, silead, and xiaomi
- new hotkeys for thinkpad and models using intel-vbtn
- dell keyboard backlight improvements
- build and dependency improvements
- intel * ipc fixes, cleanups, and api updates
- single isolated fixes noted belowExternal:
- watchdog: iTCO_wdt: Add PMC specific noreboot update api
- watchdog: iTCO_wdt: cleanup set/unset no_reboot_bit functions
- Merge branch 'ib/4.10-sparse-keymap-managed'
- Merge branch 'i2c/for-INT33FE'
- Merge branch 'linux-leds/dell-laptop-changes-for-4.12'platform/x86:
- Add Intel Cherry Trail ACPI INT33FE device driver
- remove sparse_keymap_free() calls
- Make SILEAD_DMI depend on TOUCHSCREEN_SILEADasus-wmi:
- try to set als by default
- fix cpufv sysfs file permissionacer-wmi:
- setup accelerometer when ACPI device was foundideapad-laptop:
- Add IdeaPad V310-15ISK to no_hw_rfkill
- Add IdeaPad 310-15IKB to no_hw_rfkillintel_pmc_ipc:
- use gcr mem base for S0ix counter read
- Fix iTCO_wdt GCS memory mapping failure
- Add pmc gcr read/write/update api's
- fix gcr offsetdell-laptop:
- Add keyboard backlight timeout AC settings
- Handle return error form dell_get_intensity.
- Protect kbd_state against races
- Refactor kbd_led_triggers_store()hp-wireless:
- reuse module_acpi_driver
- add Xiaomi's hardware id to the supported listintel-vbtn:
- add volume up and downINT33FE:
- add i2c dependencyhp-wmi:
- Cleanup exit paths
- Do not shadow errors in sysfs show functions
- Use DEVICE_ATTR_(RO|RW) helper macros
- Refactor dock and tablet state fetchers
- Cleanup wireless get_(hw|sw)state functions
- Refactor redundant HPWMI_READ functions
- Standardize enum usage for constants
- Cleanup local variable declarations
- Do not shadow error values
- Fix detection for dock and tablet mode
- Fix error value for hp_wmi_tablet_statefujitsu-laptop:
- simplify error handling in acpi_fujitsu_laptop_add()
- do not log LED registration failures
- switch to managed LED class devices
- reorganize LED-related code
- refactor LED registration
- select LEDS_CLASS
- remove redundant fields from struct fujitsu_bl
- account for backlight power when determining brightness
- do not log set_lcd_level() failures in bl_update_status()
- ignore errors when setting backlight power
- make disable_brightness_adjust a boolean
- clean up use_alt_lcd_levels handling
- sync brightness in set_lcd_level()
- simplify set_lcd_level()
- merge set_lcd_level_alt() into set_lcd_level()
- switch to a managed backlight device
- only handle backlight when appropriate
- update debug message logged by call_fext_func()
- rename call_fext_func() arguments
- simplify call_fext_func()
- clean up local variables in call_fext_func()
- remove keycode fields from struct fujitsu_bl
- model-dependent sparse keymap overrides
- use a sparse keymap for hotkey event generation
- switch to a managed hotkey input device
- refactor hotkey input device setup
- use a sparse keymap for brightness key events
- switch to a managed backlight input device
- refactor backlight input device setup
- remove pf_device field from struct fujitsu_bl
- only register platform device if FUJ02E3 is present
- add and remove platform device in separate functions
- simplify platform device attribute definitions
- remove backlight-related attributes from the platform device
- cleanup error labels in fujitsu_init()
- only register backlight device if FUJ02B1 is present
- sync backlight power status in acpi_fujitsu_laptop_add()
- register backlight device in a separate function
- simplify brightness key event generation logic
- decrease indentation in acpi_fujitsu_bl_notify()intel-hid:
- Add missing ->thaw callback
- do not set parents of input devices explicitly
- remove redundant set_bit() call
- use devm_input_allocate_device() for HID events input device
- make intel_hid_set_enable() take a boolean argument
- simplify enabling/disabling HID eventssilead_dmi:
- Add touchscreen info for Surftab Wintron 7.0
- Abort early if DMI does not match
- Do not treat all devices as i2c_clients
- Add entry for Insyde 7W tablets
- Constify properties arraysintel_scu_ipc:
- Introduce intel_scu_ipc_raw_command()
- Introduce SCU_DEVICE() macro
- Remove redundant subarch check
- Rearrange init sequence
- Platform data is mandatoryasus-nb-wmi:
- Add wapf4 quirk for the X302UAdell-*:
- Call new led hw_changed API on kbd brightness change
- Add a generic dell-laptop notifier chaineeepc-laptop:
- Skip unknown key messages 0x50 0x51thinkpad_acpi:
- add mapping for new hotkeys
- guard generic hotkey case"* tag 'platform-drivers-x86-v4.12-1' of git://git.infradead.org/linux-platform-drivers-x86: (108 commits)
platform/x86: Make SILEAD_DMI depend on TOUCHSCREEN_SILEAD
platform/x86: asus-wmi: try to set als by default
platform/x86: asus-wmi: fix cpufv sysfs file permission
platform/x86: acer-wmi: setup accelerometer when ACPI device was found
platform/x86: ideapad-laptop: Add IdeaPad V310-15ISK to no_hw_rfkill
platform/x86: intel_pmc_ipc: use gcr mem base for S0ix counter read
platform/x86: intel_pmc_ipc: Fix iTCO_wdt GCS memory mapping failure
watchdog: iTCO_wdt: Add PMC specific noreboot update api
watchdog: iTCO_wdt: cleanup set/unset no_reboot_bit functions
platform/x86: intel_pmc_ipc: Add pmc gcr read/write/update api's
platform/x86: intel_pmc_ipc: fix gcr offset
platform/x86: dell-laptop: Add keyboard backlight timeout AC settings
platform/x86: dell-laptop: Handle return error form dell_get_intensity.
platform/x86: hp-wireless: reuse module_acpi_driver
platform/x86: intel-vbtn: add volume up and down
platform/x86: INT33FE: add i2c dependency
platform/x86: hp-wmi: Cleanup exit paths
platform/x86: hp-wmi: Do not shadow errors in sysfs show functions
platform/x86: hp-wmi: Use DEVICE_ATTR_(RO|RW) helper macros
platform/x86: hp-wmi: Refactor dock and tablet state fetchers
... -
Pull VFIO updates from Alex Williamson:
- Updates for SPAPR IOMMU backend including compatibility test and
memory allocation check (Alexey Kardashevskiy)- Updates for type1 IOMMU backend to remove asynchronous locked page
accounting and remove redundancy (Alex Williamson)* tag 'vfio-v4.12-rc1' of git://github.com/awilliam/linux-vfio:
vfio/type1: Reduce repetitive calls in vfio_pin_pages_remote()
vfio/type1: Prune vfio_pin_page_external()
vfio/type1: Remove locked page accounting workqueue
vfio/spapr_tce: Check kzalloc() return when preregistering memory
vfio/powerpc/spapr_tce: Enforce IOMMU type compatibility check -
Pull xen updates from Juergen Gross:
"Xen fixes and featrues for 4.12. The main changes are:- enable building the kernel with Xen support but without enabling
paravirtualized mode (Vitaly Kuznetsov)- add a new 9pfs xen frontend driver (Stefano Stabellini)
- simplify Xen's cpuid handling by making use of cpu capabilities
(Juergen Gross)- add/modify some headers for new Xen paravirtualized devices
(Oleksandr Andrushchenko)- EFI reset_system support under Xen (Julien Grall)
- and the usual cleanups and corrections"
* tag 'for-linus-4.12b-rc0b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (57 commits)
xen: Move xen_have_vector_callback definition to enlighten.c
xen: Implement EFI reset_system callback
arm/xen: Consolidate calls to shutdown hypercall in a single helper
xen: Export xen_reboot
xen/x86: Call xen_smp_intr_init_pv() on BSP
xen: Revert commits da72ff5bfcb0 and 72a9b186292d
xen/pvh: Do not fill kernel's e820 map in init_pvh_bootparams()
xen/scsifront: use offset_in_page() macro
xen/arm,arm64: rename __generic_dma_ops to xen_get_dma_ops
xen/arm,arm64: fix xen_dma_ops after 815dd18 "Consolidate get_dma_ops..."
xen/9pfs: select CONFIG_XEN_XENBUS_FRONTEND
x86/cpu: remove hypervisor specific set_cpu_features
vmware: set cpu capabilities during platform initialization
x86/xen: use capabilities instead of fake cpuid values for xsave
x86/xen: use capabilities instead of fake cpuid values for x2apic
x86/xen: use capabilities instead of fake cpuid values for mwait
x86/xen: use capabilities instead of fake cpuid values for acpi
x86/xen: use capabilities instead of fake cpuid values for acc
x86/xen: use capabilities instead of fake cpuid values for mtrr
x86/xen: use capabilities instead of fake cpuid values for aperf
... -
Due to the way I did the RX bitrate conversions in mac80211 with
spatch, going setting flags to setting the value, many drivers now
don't set the bandwidth value for 20 MHz, since with the flags it
wasn't necessary to (there was no 20 MHz flag, only the others.)Rather than go through and try to fix up all the drivers, instead
renumber the enum so that 20 MHz, which is the typical bandwidth,
actually has the value 0, making those drivers all work again.If VHT was hit used with a driver not reporting it, e.g. iwlmvm,
this manifested in hitting the bandwidth warning in
cfg80211_calculate_bitrate_vht().Reported-by: Linus Torvalds
Tested-by: Jens Axboe
Signed-off-by: Johannes Berg
Signed-off-by: David S. Miller -
Andrey reported a crash on init_net.ipv6.ip6_null_entry->rt6i_idev
since it is always NULL.This is clearly wrong, we have code to initialize it to loopback_dev,
unfortunately the order is still not correct.loopback_dev is registered very early during boot, we lose a chance
to re-initialize it in notifier. addrconf_init() is called after
ip6_route_init(), which means we have no chance to correct it.Fix it by moving this initialization explicitly after
ipv6_add_dev(init_net.loopback_dev) in addrconf_init().Reported-by: Andrey Konovalov
Signed-off-by: Cong Wang
Tested-by: Andrey Konovalov
Signed-off-by: David S. Miller -
Sudarsana Reddy Kalluru says:
====================
qed*: Bug fix series.The series contains minor bug fixes for qed/qede drivers.
Please consider applying it to 'net' branch.
====================Signed-off-by: David S. Miller
-
Fail the configuration of advertised speed-autoneg value if the config
update is not supported.Signed-off-by: Sudarsana Reddy Kalluru
Signed-off-by: Yuval Mintz
Signed-off-by: David S. Miller -
Driver currently uses advertised-autoneg value to populate the
supported-autoneg field. When advertised field is updated, user gets
the same value for supported field. Supported-autoneg value need to be
populated from the link capabilities value returned by the MFW.Signed-off-by: Sudarsana Reddy Kalluru
Signed-off-by: Yuval Mintz
Signed-off-by: David S. Miller -
Value for status block id could be more than 256 in 100G mode, need to
update its data type from u8 to u16.Signed-off-by: Sudarsana Reddy Kalluru
Signed-off-by: Yuval Mintz
Signed-off-by: David S. Miller
04 May, 2017
19 commits
-
IFLA_PHYS_PORT_NAME is a string attribute, so terminate it with \0.
Otherwise libnl3 fails to validate netlink messages with this attribute.
"ip -detail a" assumes too that the attribute is NUL-terminated when
printing it. It often was, due to padding.I noticed this as libvirtd failing to start on a system with sfc driver
after upgrading it to Linux 4.11, i.e. when sfc added support for
phys_port_name.Signed-off-by: Michal Schmidt
Signed-off-by: David S. Miller -
This fixes a race where vmbus callback for new packet arriving
could occur before NAPI is initialized.Signed-off-by: Stephen Hemminger
Signed-off-by: David S. Miller -
V2: using "aquantia" subsystem tag.
The command "ethtool -i ethX" should display driver name (driver: atlantic)
instead vendor name (driver: aquantia).Signed-off-by: Pavel Belous
Signed-off-by: David S. Miller -
raw_send_hdrinc() and rawv6_send_hdrinc() expect that the buffer copied
from the userspace contains the IPv4/IPv6 header, so if too few bytes are
copied, parts of the header may remain uninitialized.This bug has been detected with KMSAN.
For the record, the KMSAN report:
==================================================================
BUG: KMSAN: use of unitialized memory in nf_ct_frag6_gather+0xf5a/0x44a0
inter: 0
CPU: 0 PID: 1036 Comm: probe Not tainted 4.11.0-rc5+ #2455
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:16
dump_stack+0x143/0x1b0 lib/dump_stack.c:52
kmsan_report+0x16b/0x1e0 mm/kmsan/kmsan.c:1078
__kmsan_warning_32+0x5c/0xa0 mm/kmsan/kmsan_instr.c:510
nf_ct_frag6_gather+0xf5a/0x44a0 net/ipv6/netfilter/nf_conntrack_reasm.c:577
ipv6_defrag+0x1d9/0x280 net/ipv6/netfilter/nf_defrag_ipv6_hooks.c:68
nf_hook_entry_hookfn ./include/linux/netfilter.h:102
nf_hook_slow+0x13f/0x3c0 net/netfilter/core.c:310
nf_hook ./include/linux/netfilter.h:212
NF_HOOK ./include/linux/netfilter.h:255
rawv6_send_hdrinc net/ipv6/raw.c:673
rawv6_sendmsg+0x2fcb/0x41a0 net/ipv6/raw.c:919
inet_sendmsg+0x3f8/0x6d0 net/ipv4/af_inet.c:762
sock_sendmsg_nosec net/socket.c:633
sock_sendmsg net/socket.c:643
SYSC_sendto+0x6a5/0x7c0 net/socket.c:1696
SyS_sendto+0xbc/0xe0 net/socket.c:1664
do_syscall_64+0x72/0xa0 arch/x86/entry/common.c:285
entry_SYSCALL64_slow_path+0x25/0x25 arch/x86/entry/entry_64.S:246
RIP: 0033:0x436e03
RSP: 002b:00007ffce48baf38 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00000000004002b0 RCX: 0000000000436e03
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007ffce48baf90 R08: 00007ffce48baf50 R09: 000000000000001c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000401790 R14: 0000000000401820 R15: 0000000000000000
origin: 00000000d9400053
save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:362
kmsan_internal_poison_shadow+0xb1/0x1a0 mm/kmsan/kmsan.c:257
kmsan_poison_shadow+0x6d/0xc0 mm/kmsan/kmsan.c:270
slab_alloc_node mm/slub.c:2735
__kmalloc_node_track_caller+0x1f4/0x390 mm/slub.c:4341
__kmalloc_reserve net/core/skbuff.c:138
__alloc_skb+0x2cd/0x740 net/core/skbuff.c:231
alloc_skb ./include/linux/skbuff.h:933
alloc_skb_with_frags+0x209/0xbc0 net/core/skbuff.c:4678
sock_alloc_send_pskb+0x9ff/0xe00 net/core/sock.c:1903
sock_alloc_send_skb+0xe4/0x100 net/core/sock.c:1920
rawv6_send_hdrinc net/ipv6/raw.c:638
rawv6_sendmsg+0x2918/0x41a0 net/ipv6/raw.c:919
inet_sendmsg+0x3f8/0x6d0 net/ipv4/af_inet.c:762
sock_sendmsg_nosec net/socket.c:633
sock_sendmsg net/socket.c:643
SYSC_sendto+0x6a5/0x7c0 net/socket.c:1696
SyS_sendto+0xbc/0xe0 net/socket.c:1664
do_syscall_64+0x72/0xa0 arch/x86/entry/common.c:285
return_from_SYSCALL_64+0x0/0x6a arch/x86/entry/entry_64.S:246
==================================================================, triggered by the following syscalls:
socket(PF_INET6, SOCK_RAW, IPPROTO_RAW) = 3
sendto(3, NULL, 0, 0, {sa_family=AF_INET6, sin6_port=htons(0), inet_pton(AF_INET6, "ff00::", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 EPERMA similar report is triggered in net/ipv4/raw.c if we use a PF_INET socket
instead of a PF_INET6 one.Signed-off-by: Alexander Potapenko
Signed-off-by: David S. Miller -
head is previously null checked and so the 2nd null check on head
is redundant and therefore can be removed.Detected by CoverityScan, CID#1399505 ("Logically dead code")
Signed-off-by: Colin Ian King
Acked-by: Jiri Pirko
Signed-off-by: David S. Miller -
Under fuzzer stress, it is possible that a child gets a non NULL
fastopen_req pointer from its parent at accept() time, when/if parent
morphs from listener to active session.We need to make sure this can not happen, by clearing the field after
socket cloning.BUG: Double free or freeing an invalid pointer
Unexpected shadow byte: 0xFB
CPU: 3 PID: 20933 Comm: syz-executor3 Not tainted 4.11.0+ #306
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs
01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:16 [inline]
dump_stack+0x292/0x395 lib/dump_stack.c:52
kasan_object_err+0x1c/0x70 mm/kasan/report.c:164
kasan_report_double_free+0x5c/0x70 mm/kasan/report.c:185
kasan_slab_free+0x9d/0xc0 mm/kasan/kasan.c:580
slab_free_hook mm/slub.c:1357 [inline]
slab_free_freelist_hook mm/slub.c:1379 [inline]
slab_free mm/slub.c:2961 [inline]
kfree+0xe8/0x2b0 mm/slub.c:3882
tcp_free_fastopen_req net/ipv4/tcp.c:1077 [inline]
tcp_disconnect+0xc15/0x13e0 net/ipv4/tcp.c:2328
inet_child_forget+0xb8/0x600 net/ipv4/inet_connection_sock.c:898
inet_csk_reqsk_queue_add+0x1e7/0x250
net/ipv4/inet_connection_sock.c:928
tcp_get_cookie_sock+0x21a/0x510 net/ipv4/syncookies.c:217
cookie_v4_check+0x1a19/0x28b0 net/ipv4/syncookies.c:384
tcp_v4_cookie_check net/ipv4/tcp_ipv4.c:1384 [inline]
tcp_v4_do_rcv+0x731/0x940 net/ipv4/tcp_ipv4.c:1421
tcp_v4_rcv+0x2dc0/0x31c0 net/ipv4/tcp_ipv4.c:1715
ip_local_deliver_finish+0x4cc/0xc20 net/ipv4/ip_input.c:216
NF_HOOK include/linux/netfilter.h:257 [inline]
ip_local_deliver+0x1ce/0x700 net/ipv4/ip_input.c:257
dst_input include/net/dst.h:492 [inline]
ip_rcv_finish+0xb1d/0x20b0 net/ipv4/ip_input.c:396
NF_HOOK include/linux/netfilter.h:257 [inline]
ip_rcv+0xd8c/0x19c0 net/ipv4/ip_input.c:487
__netif_receive_skb_core+0x1ad1/0x3400 net/core/dev.c:4210
__netif_receive_skb+0x2a/0x1a0 net/core/dev.c:4248
process_backlog+0xe5/0x6c0 net/core/dev.c:4868
napi_poll net/core/dev.c:5270 [inline]
net_rx_action+0xe70/0x18e0 net/core/dev.c:5335
__do_softirq+0x2fb/0xb99 kernel/softirq.c:284
do_softirq_own_stack+0x1c/0x30 arch/x86/entry/entry_64.S:899
do_softirq.part.17+0x1e8/0x230 kernel/softirq.c:328
do_softirq kernel/softirq.c:176 [inline]
__local_bh_enable_ip+0x1cf/0x1e0 kernel/softirq.c:181
local_bh_enable include/linux/bottom_half.h:31 [inline]
rcu_read_unlock_bh include/linux/rcupdate.h:931 [inline]
ip_finish_output2+0x9ab/0x15e0 net/ipv4/ip_output.c:230
ip_finish_output+0xa35/0xdf0 net/ipv4/ip_output.c:316
NF_HOOK_COND include/linux/netfilter.h:246 [inline]
ip_output+0x1f6/0x7b0 net/ipv4/ip_output.c:404
dst_output include/net/dst.h:486 [inline]
ip_local_out+0x95/0x160 net/ipv4/ip_output.c:124
ip_queue_xmit+0x9a8/0x1a10 net/ipv4/ip_output.c:503
tcp_transmit_skb+0x1ade/0x3470 net/ipv4/tcp_output.c:1057
tcp_write_xmit+0x79e/0x55b0 net/ipv4/tcp_output.c:2265
__tcp_push_pending_frames+0xfa/0x3a0 net/ipv4/tcp_output.c:2450
tcp_push+0x4ee/0x780 net/ipv4/tcp.c:683
tcp_sendmsg+0x128d/0x39b0 net/ipv4/tcp.c:1342
inet_sendmsg+0x164/0x5b0 net/ipv4/af_inet.c:762
sock_sendmsg_nosec net/socket.c:633 [inline]
sock_sendmsg+0xca/0x110 net/socket.c:643
SYSC_sendto+0x660/0x810 net/socket.c:1696
SyS_sendto+0x40/0x50 net/socket.c:1664
entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x446059
RSP: 002b:00007faa6761fb58 EFLAGS: 00000282 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 0000000000446059
RDX: 0000000000000001 RSI: 0000000020ba3fcd RDI: 0000000000000017
RBP: 00000000006e40a0 R08: 0000000020ba4ff0 R09: 0000000000000010
R10: 0000000020000000 R11: 0000000000000282 R12: 0000000000708150
R13: 0000000000000000 R14: 00007faa676209c0 R15: 00007faa67620700
Object at ffff88003b5bbcb8, in cache kmalloc-64 size: 64
Allocated:
PID = 20909
save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
save_stack+0x43/0xd0 mm/kasan/kasan.c:513
set_track mm/kasan/kasan.c:525 [inline]
kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:616
kmem_cache_alloc_trace+0x82/0x270 mm/slub.c:2745
kmalloc include/linux/slab.h:490 [inline]
kzalloc include/linux/slab.h:663 [inline]
tcp_sendmsg_fastopen net/ipv4/tcp.c:1094 [inline]
tcp_sendmsg+0x221a/0x39b0 net/ipv4/tcp.c:1139
inet_sendmsg+0x164/0x5b0 net/ipv4/af_inet.c:762
sock_sendmsg_nosec net/socket.c:633 [inline]
sock_sendmsg+0xca/0x110 net/socket.c:643
SYSC_sendto+0x660/0x810 net/socket.c:1696
SyS_sendto+0x40/0x50 net/socket.c:1664
entry_SYSCALL_64_fastpath+0x1f/0xbe
Freed:
PID = 20909
save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
save_stack+0x43/0xd0 mm/kasan/kasan.c:513
set_track mm/kasan/kasan.c:525 [inline]
kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:589
slab_free_hook mm/slub.c:1357 [inline]
slab_free_freelist_hook mm/slub.c:1379 [inline]
slab_free mm/slub.c:2961 [inline]
kfree+0xe8/0x2b0 mm/slub.c:3882
tcp_free_fastopen_req net/ipv4/tcp.c:1077 [inline]
tcp_disconnect+0xc15/0x13e0 net/ipv4/tcp.c:2328
__inet_stream_connect+0x20c/0xf90 net/ipv4/af_inet.c:593
tcp_sendmsg_fastopen net/ipv4/tcp.c:1111 [inline]
tcp_sendmsg+0x23a8/0x39b0 net/ipv4/tcp.c:1139
inet_sendmsg+0x164/0x5b0 net/ipv4/af_inet.c:762
sock_sendmsg_nosec net/socket.c:633 [inline]
sock_sendmsg+0xca/0x110 net/socket.c:643
SYSC_sendto+0x660/0x810 net/socket.c:1696
SyS_sendto+0x40/0x50 net/socket.c:1664
entry_SYSCALL_64_fastpath+0x1f/0xbeFixes: e994b2f0fb92 ("tcp: do not lock listener to process SYN packets")
Fixes: 7db92362d2fe ("tcp: fix potential double free issue for fastopen_req")
Signed-off-by: Eric Dumazet
Reported-by: Andrey Konovalov
Acked-by: Wei Wang
Signed-off-by: David S. Miller -
Since netif_carrier_on() will do nothing if device's
carrier is already on, so it's unnecessary to do
carrier status check.It's the same for netif_carrier_off().
Signed-off-by: Zhu Yanjun
Signed-off-by: David S. Miller -
Pull modules updates from Jessica Yu:
- Minor code cleanups
- Fix section alignment for .init_array
* tag 'modules-for-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
kallsyms: Use bounded strnchr() when parsing string
module: Unify the return value type of try_module_get
module: set .init_array alignment to 8 -
Pull tracing updates from Steven Rostedt:
"New features for this release:- Pretty much a full rewrite of the processing of function plugins.
i.e. echo do_IRQ:stacktrace > set_ftrace_filter- The rewrite was needed to add plugins to be unique to tracing
instances. i.e. mkdir instance/foo; cd instances/foo; echo
do_IRQ:stacktrace > set_ftrace_filter The old way was written very
hacky. This removes a lot of those hacks.- New "function-fork" tracing option. When set, pids in the
set_ftrace_pid will have their children added when the processes
with their pids listed in the set_ftrace_pid file forks.- Exposure of "maxactive" for kretprobe in kprobe_events
- Allow for builtin init functions to be traced by the function
tracer (via the kernel command line). Module init function tracing
will come in the next release.- Added more selftests, and have selftests also test in an instance"
* tag 'trace-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (60 commits)
ring-buffer: Return reader page back into existing ring buffer
selftests: ftrace: Allow some event trigger tests to run in an instance
selftests: ftrace: Have some basic tests run in a tracing instance too
selftests: ftrace: Have event tests also run in an tracing instance
selftests: ftrace: Make func_event_triggers and func_traceonoff_triggers tests do instances
selftests: ftrace: Allow some tests to be run in a tracing instance
tracing/ftrace: Allow for instances to trigger their own stacktrace probes
tracing/ftrace: Allow for the traceonoff probe be unique to instances
tracing/ftrace: Enable snapshot function trigger to work with instances
tracing/ftrace: Allow instances to have their own function probes
tracing/ftrace: Add a better way to pass data via the probe functions
ftrace: Dynamically create the probe ftrace_ops for the trace_array
tracing: Pass the trace_array into ftrace_probe_ops functions
tracing: Have the trace_array hold the list of registered func probes
ftrace: If the hash for a probe fails to update then free what was initialized
ftrace: Have the function probes call their own function
ftrace: Have each function probe use its own ftrace_ops
ftrace: Have unregister_ftrace_function_probe_func() return a value
ftrace: Add helper function ftrace_hash_move_and_update_ops()
ftrace: Remove data field from ftrace_func_probe structure
... -
Pull printk updates from Petr Mladek:
- There is a situation when early console is not deregistered because
the preferred one matches a wrong entry. It caused messages to appear
twice.This is the 2nd attempt to fix it. The first one was wrong, see the
commit c6c7d83b9c9e ('Revert "console: don't prefer first registered
if DT specifies stdout-path"').The fix is coupled with some small code clean up. Well, the console
registration code would deserve a big one. We need to think about it.- Do not lose information about the preemtive context when the console
semaphore is re-taken.- Do not block CPU hotplug when someone else is already pushing
messages to the console.* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk:
printk: fix double printing with earlycon
printk: rename selected_console -> preferred_console
printk: fix name/type/scope of preferred_console var
printk: Correctly handle preemption in console_unlock()
printk: use console_trylock() in console_cpu_notify() -
Merge misc updates from Andrew Morton:
- a few misc things
- most of MM
- KASAN updates
* emailed patches from Andrew Morton : (102 commits)
kasan: separate report parts by empty lines
kasan: improve double-free report format
kasan: print page description after stacks
kasan: improve slab object description
kasan: change report header
kasan: simplify address description logic
kasan: change allocation and freeing stack traces headers
kasan: unify report headers
kasan: introduce helper functions for determining bug type
mm: hwpoison: call shake_page() after try_to_unmap() for mlocked page
mm: hwpoison: call shake_page() unconditionally
mm/swapfile.c: fix swap space leak in error path of swap_free_entries()
mm/gup.c: fix access_ok() argument type
mm/truncate: avoid pointless cleancache_invalidate_inode() calls.
mm/truncate: bail out early from invalidate_inode_pages2_range() if mapping is empty
fs/block_dev: always invalidate cleancache in invalidate_bdev()
fs: fix data invalidation in the cleancache during direct IO
zram: reduce load operation in page_same_filled
zram: use zram_free_page instead of open-coded
zram: introduce zram data accessor
... -
Makes the report easier to read.
Link: http://lkml.kernel.org/r/20170302134851.101218-10-andreyknvl@google.com
Signed-off-by: Andrey Konovalov
Acked-by: Dmitry Vyukov
Cc: Andrey Ryabinin
Cc: Alexander Potapenko
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Changes double-free report header from
BUG: Double free or freeing an invalid pointer
Unexpected shadow byte: 0xFBto
BUG: KASAN: double-free or invalid-free in kmalloc_oob_left+0xe5/0xef
This makes a bug uniquely identifiable by the first report line. To
account for removing of the unexpected shadow value, print shadow bytes
at the end of the report as in reports for other kinds of bugs.Link: http://lkml.kernel.org/r/20170302134851.101218-9-andreyknvl@google.com
Signed-off-by: Andrey Konovalov
Acked-by: Dmitry Vyukov
Cc: Andrey Ryabinin
Cc: Alexander Potapenko
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Moves page description after the stacks since it's less important.
Link: http://lkml.kernel.org/r/20170302134851.101218-8-andreyknvl@google.com
Signed-off-by: Andrey Konovalov
Acked-by: Dmitry Vyukov
Cc: Andrey Ryabinin
Cc: Alexander Potapenko
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Changes slab object description from:
Object at ffff880068388540, in cache kmalloc-128 size: 128
to:
The buggy address belongs to the object at ffff880068388540
which belongs to the cache kmalloc-128 of size 128
The buggy address is located 123 bytes inside of
128-byte region [ffff880068388540, ffff8800683885c0)Makes it more explanatory and adds information about relative offset of
the accessed address to the start of the object.Link: http://lkml.kernel.org/r/20170302134851.101218-7-andreyknvl@google.com
Signed-off-by: Andrey Konovalov
Acked-by: Dmitry Vyukov
Cc: Andrey Ryabinin
Cc: Alexander Potapenko
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Change report header format from:
BUG: KASAN: use-after-free in unwind_get_return_address+0x28a/0x2c0 at addr ffff880069437950
Read of size 8 by task insmod/3925to:
BUG: KASAN: use-after-free in unwind_get_return_address+0x28a/0x2c0
Read of size 8 at addr ffff880069437950 by task insmod/3925The exact access address is not usually important, so move it to the
second line. This also makes the header look visually balanced.Link: http://lkml.kernel.org/r/20170302134851.101218-6-andreyknvl@google.com
Signed-off-by: Andrey Konovalov
Acked-by: Dmitry Vyukov
Cc: Andrey Ryabinin
Cc: Alexander Potapenko
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Simplify logic for describing a memory address. Add addr_to_page()
helper function.Makes the code easier to follow.
Link: http://lkml.kernel.org/r/20170302134851.101218-5-andreyknvl@google.com
Signed-off-by: Andrey Konovalov
Acked-by: Dmitry Vyukov
Cc: Andrey Ryabinin
Cc: Alexander Potapenko
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Change stack traces headers from:
Allocated:
PID = 42to:
Allocated by task 42:
Makes the report one line shorter and look better.
Link: http://lkml.kernel.org/r/20170302134851.101218-4-andreyknvl@google.com
Signed-off-by: Andrey Konovalov
Acked-by: Dmitry Vyukov
Cc: Andrey Ryabinin
Cc: Alexander Potapenko
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Unify KASAN report header format for different kinds of bad memory
accesses. Makes the code simpler.Link: http://lkml.kernel.org/r/20170302134851.101218-3-andreyknvl@google.com
Signed-off-by: Andrey Konovalov
Acked-by: Dmitry Vyukov
Cc: Andrey Ryabinin
Cc: Alexander Potapenko
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
