Changes in 4.19.158
regulator: defer probe when trying to get voltage from unresolved supply
time: Prevent undefined behaviour in timespec64_to_ns()
nbd: don't update block size after device is started
usb: dwc3: gadget: Continue to process pending requests
usb: dwc3: gadget: Reclaim extra TRBs after request completion
btrfs: sysfs: init devices outside of the chunk_mutex
btrfs: reschedule when cloning lots of extents
genirq: Let GENERIC_IRQ_IPI select IRQ_DOMAIN_HIERARCHY
hv_balloon: disable warning when floor reached
net: xfrm: fix a race condition during allocing spi
xfs: set xefi_discard when creating a deferred agfl free log intent item
netfilter: ipset: Update byte and packet counters regardless of whether they match
perf tools: Add missing swap for ino_generation
ALSA: hda: prevent undefined shift in snd_hdac_ext_bus_get_link()
can: rx-offload: don't call kfree_skb() from IRQ context
can: dev: can_get_echo_skb(): prevent call to kfree_skb() in hard IRQ context
can: dev: __can_get_echo_skb(): fix real payload length return value for RTR frames
can: can_create_echo_skb(): fix echo skb generation: always use skb_clone()
can: peak_usb: add range checking in decode operations
can: peak_usb: peak_usb_get_ts_time(): fix timestamp wrapping
can: peak_canfd: pucan_handle_can_rx(): fix echo management when loopback is on
can: flexcan: remove FLEXCAN_QUIRK_DISABLE_MECR quirk for LS1021A
xfs: flush new eof page on truncate to avoid post-eof corruption
xfs: fix scrub flagging rtinherit even if there is no rt device
tpm: efi: Don't create binary_bios_measurements file for an empty log
Btrfs: fix missing error return if writeback for extent buffer never started
ath9k_htc: Use appropriate rs_datalen type
netfilter: use actual socket sk rather than skb sk when routing harder
crypto: arm64/aes-modes - get rid of literal load of addend vector
usb: gadget: goku_udc: fix potential crashes in probe
gfs2: Free rd_bits later in gfs2_clear_rgrpd to fix use-after-free
gfs2: Add missing truncate_inode_pages_final for sd_aspace
gfs2: check for live vs. read-only file system in gfs2_fitrim
scsi: hpsa: Fix memory leak in hpsa_init_one()
drm/amdgpu: perform srbm soft reset always on SDMA resume
drm/amd/pm: perform SMC reset on suspend/hibernation
drm/amd/pm: do not use ixFEATURE_STATUS for checking smc running
mac80211: fix use of skb payload instead of header
cfg80211: regulatory: Fix inconsistent format argument
scsi: scsi_dh_alua: Avoid crash during alua_bus_detach()
iommu/amd: Increase interrupt remapping table limit to 512 entries
s390/smp: move rcu_cpu_starting() earlier
vfio: platform: fix reference leak in vfio_platform_open
selftests: proc: fix warning: _GNU_SOURCE redefined
tpm_tis: Disable interrupts on ThinkPad T490s
tick/common: Touch watchdog in tick_unfreeze() on all CPUs
mfd: sprd: Add wakeup capability for PMIC IRQ
pinctrl: intel: Set default bias in case no particular value given
ARM: 9019/1: kprobes: Avoid fortify_panic() when copying optprobe template
pinctrl: aspeed: Fix GPI only function problem.
nbd: fix a block_device refcount leak in nbd_release
xfs: fix flags argument to rmap lookup when converting shared file rmaps
xfs: set the unwritten bit in rmap lookup flags in xchk_bmap_get_rmapextents
xfs: fix rmap key and record comparison functions
xfs: fix brainos in the refcount scrubber's rmap fragment processor
lan743x: fix "BUG: invalid wait context" when setting rx mode
xfs: fix a missing unlock on error in xfs_fs_map_blocks
of/address: Fix of_node memory leak in of_dma_is_coherent
cosa: Add missing kfree in error path of cosa_write
perf: Fix get_recursion_context()
ext4: correctly report "not supported" for {usr,grp}jquota when !CONFIG_QUOTA
ext4: unlock xattr_sem properly in ext4_inline_data_truncate()
btrfs: ref-verify: fix memory leak in btrfs_ref_tree_mod
btrfs: dev-replace: fail mount if we don't have replace item with target device
thunderbolt: Fix memory leak if ida_simple_get() fails in enumerate_services()
thunderbolt: Add the missed ida_simple_remove() in ring_request_msix()
uio: Fix use-after-free in uio_unregister_device()
usb: cdc-acm: Add DISABLE_ECHO for Renesas USB Download mode
xhci: hisilicon: fix refercence leak in xhci_histb_probe
mei: protect mei_cl_mtu from null dereference
futex: Don't enable IRQs unconditionally in put_pi_state()
ocfs2: initialize ip_next_orphan
btrfs: fix potential overflow in cluster_pages_for_defrag on 32bit arch
selinux: Fix error return code in sel_ib_pkey_sid_slow()
gpio: pcie-idio-24: Fix irq mask when masking
gpio: pcie-idio-24: Fix IRQ Enable Register value
gpio: pcie-idio-24: Enable PEX8311 interrupts
mmc: renesas_sdhi_core: Add missing tmio_mmc_host_free() at remove
don't dump the threads that had been already exiting when zapped.
drm/gma500: Fix out-of-bounds access to struct drm_device.vblank[]
pinctrl: amd: use higher precision for 512 RtcClk
pinctrl: amd: fix incorrect way to disable debounce filter
erofs: derive atime instead of leaving it empty
swiotlb: fix "x86: Don't panic if can not alloc buffer for swiotlb"
IPv6: Set SIT tunnel hard_header_len to zero
net/af_iucv: fix null pointer dereference on shutdown
net: Update window_clamp if SOCK_RCVBUF is set
net/x25: Fix null-ptr-deref in x25_connect
tipc: fix memory leak in tipc_topsrv_start()
vrf: Fix fast path output packet handling with async Netfilter rules
r8169: fix potential skb double free in an error path
random32: make prandom_u32() output unpredictable
x86/speculation: Allow IBPB to be conditionally enabled on CPUs with always-on STIBP
perf scripting python: Avoid declaring function pointers with a visibility attribute
perf/core: Fix race in the perf_mmap_close() function
Revert "kernel/reboot.c: convert simple_strtoul to kstrtoint"
reboot: fix overflow parsing reboot cpu number
net: sch_generic: fix the missing new qdisc assignment bug
Convert trailing spaces and periods in path components
Linux 4.19.158
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ic626f4e05969543a701587d14bce4476cb146303
commit 8b92c4ff4423aa9900cf838d3294fcade4dbda35 upstream.
Patch series "fix parsing of reboot= cmdline", v3.
The parsing of the reboot= cmdline has two major errors:
- a missing bound check can crash the system on reboot
- parsing of the cpu number only works if specified last
Fix both.
This patch (of 2):
This reverts commit 616feab753.
kstrtoint() and simple_strtoul() have a subtle difference which makes
them non interchangeable: if a non digit character is found amid the
parsing, the former will return an error, while the latter will just
stop parsing, e.g. simple_strtoul("123xyx") = 123.
The kernel cmdline reboot= argument allows to specify the CPU used for
rebooting, with the syntax `s####` among the other flags, e.g.
"reboot=warm,s31,force", so if this flag is not the last given, it's
silently ignored as well as the subsequent ones.
Fixes: 616feab753 ("kernel/reboot.c: convert simple_strtoul to kstrtoint")
Signed-off-by: Matteo Croce <mcroce@microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Fabian Frederick <fabf@skynet.be>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20201103214025.116799-2-mcroce@linux.microsoft.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[sudip: use reboot_mode instead of mode]
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Allow specifying reboot_mode for panic only. This is needed on systems
where ramoops is used to store panic logs, and user wants to use warm
reset to preserve those, while still having cold reset on normal
reboots.
Link: http://lkml.kernel.org/r/20190322004735.27702-1-aaro.koskinen@iki.fi
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit b287a25a7148a89d977c819c1f7d6584f875b682)
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 154175554
Change-Id: Id1075f4d97eddb818aa495903a7643958e6c73d6
At present, "systemctl suspend" and "shutdown" can run in parrallel. A
system can suspend after devices_shutdown(), and resume. Then the shutdown
task goes on to power off. This causes many devices are not really shut
off. Hence replacing reboot_mutex with system_transition_mutex (renamed
from pm_mutex) to achieve the exclusion. The renaming of pm_mutex as
system_transition_mutex can be better to reflect the purpose of the mutex.
Signed-off-by: Pingfan Liu <kernelfans@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
There are two kexec load syscalls, kexec_load another and kexec_file_load.
kexec_file_load has been splited as kernel/kexec_file.c. In this patch I
split kexec_load syscall code to kernel/kexec.c.
And add a new kconfig option KEXEC_CORE, so we can disable kexec_load and
use kexec_file_load only, or vice verse.
The original requirement is from Ted Ts'o, he want kexec kernel signature
being checked with CONFIG_KEXEC_VERIFY_SIG enabled. But kexec-tools use
kexec_load syscall can bypass the checking.
Vivek Goyal proposed to create a common kconfig option so user can compile
in only one syscall for loading kexec kernel. KEXEC/KEXEC_FILE selects
KEXEC_CORE so that old config files still work.
Because there's general code need CONFIG_KEXEC_CORE, so I updated all the
architecture Kconfig with a new option KEXEC_CORE, and let KEXEC selects
KEXEC_CORE in arch Kconfig. Also updated general kernel code with to
kexec_load syscall.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Dave Young <dyoung@redhat.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Petr Tesarik <ptesarik@suse.cz>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Josh Boyer <jwboyer@fedoraproject.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The kernel has orderly_poweroff which allows the kernel to initiate a
graceful shutdown of userspace, by running /sbin/poweroff. This adds
orderly_reboot that will cause userspace to shut itself down by calling
/sbin/reboot.
This will be used for shutdown initiated by a system controller on
platforms that do not use ACPI.
orderly_reboot() should be used when the system wants to allow userspace
to gracefully shut itself down. For cases where the system may imminently
catch on fire, the existing emergency_restart() provides an immediate
reboot without involving userspace.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Cc: Fabian Frederick <fabf@skynet.be>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jeremy Kerr <jk@ozlabs.org>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Various drivers implement architecture and/or device specific means to
restart (reset) the system. Various mechanisms have been implemented to
support those schemes. The best known mechanism is arm_pm_restart, which
is a function pointer to be set either from platform specific code or from
drivers. Another mechanism is to use hardware watchdogs to issue a reset;
this mechanism is used if there is no other method available to reset a
board or system. Two examples are alim7101_wdt, which currently uses the
reboot notifier to trigger a reset, and moxart_wdt, which registers the
arm_pm_restart function.
The existing mechanisms have a number of drawbacks. Typically only one
scheme to restart the system is supported (at least if arm_pm_restart is
used). At least in theory there can be multiple means to restart the
system, some of which may be less desirable (for example one mechanism may
only reset the CPU, while another may reset the entire system). Using
arm_pm_restart can also be racy if the function pointer is set from a
driver, as the driver may be in the process of being unloaded when
arm_pm_restart is called. Using the reboot notifier is always racy, as it
is unknown if and when other functions using the reboot notifier have
completed execution by the time the watchdog fires.
Introduce a system restart handler call chain to solve the described
problems. This call chain is expected to be executed from the
architecture specific machine_restart() function. Drivers providing
system restart functionality (such as the watchdog drivers mentioned
above) are expected to register with this call chain. By using the
priority field in the notifier block, callers can control restart handler
execution sequence and thus ensure that the restart handler with the
optimal restart capabilities for a given system is called first.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Jonas Jensen <jonas.jensen@gmail.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Replace obsolete function.
kstrtoint is used as reboot_cpu is an integer.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 1b3a5d02ee ("reboot: move arch/x86 reboot= handling to generic
kernel") moved reboot= handling to generic code. In the process it also
removed the code in native_machine_shutdown() which are moving reboot
process to reboot_cpu/cpu0.
I guess that thought must have been that all reboot paths are calling
migrate_to_reboot_cpu(), so we don't need this special handling. But
kexec reboot path (kernel_kexec()) is not calling
migrate_to_reboot_cpu() so above change broke kexec. Now reboot can
happen on non-boot cpu and when INIT is sent in second kerneo to bring
up BP, it brings down the machine.
So start calling migrate_to_reboot_cpu() in kexec reboot path to avoid
this problem.
Bisected by WANG Chao.
Reported-by: Matthew Whitehead <mwhitehe@redhat.com>
Reported-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Tested-by: Baoquan He <bhe@redhat.com>
Tested-by: WANG Chao <chaowang@redhat.com>
Acked-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 1b3a5d02ee ("reboot: move arch/x86 reboot= handling to generic
kernel") did some cleanup for reboot= command line, but it made the
reboot_default inoperative.
The default value of variable reboot_default should be 1, and if command
line reboot= is not set, system will use the default reboot mode.
[akpm@linux-foundation.org: fix comment layout]
Signed-off-by: Li Fei <fei.li@intel.com>
Signed-off-by: liu chuansheng <chuansheng.liu@intel.com>
Acked-by: Robin Holt <robinmholt@linux.com>
Cc: <stable@vger.kernel.org> [3.11.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Merge together the unicore32, arm, and x86 reboot= command line
parameter handling.
Signed-off-by: Robin Holt <holt@sgi.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Russ Anderson <rja@sgi.com>
Cc: Robin Holt <holt@sgi.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Get the new file to pass scripts/checkpatch.pl
Signed-off-by: Robin Holt <holt@sgi.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Russ Anderson <rja@sgi.com>
Cc: Robin Holt <holt@sgi.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch is preparatory. It moves reboot related syscall, etc
functions from kernel/sys.c to kernel/reboot.c.
Signed-off-by: Robin Holt <holt@sgi.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Russ Anderson <rja@sgi.com>
Cc: Robin Holt <holt@sgi.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
