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linux/arch/x86/kernel
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Mathias Krause 27cf929845 x86/apic: Fix parsing of the 'lapic' cmdline option 
Including " lapic " in the kernel cmdline on an x86-64 kernel
makes it panic while parsing early params -- e.g. with no user
visible output.

Fix this bug by ensuring arg is non-NULL before passing it to
strncmp().

Reported-by: PaX Team <pageexec@freemail.hu>
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Link: http://lkml.kernel.org/r/1361303227-13174-1-git-send-email-minipli@googlemail.com
Cc: stable@vger.kernel.org	# v3.8
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-02-20 11:24:36 +01:00
..
acpi
Merge branch 'x86-acpi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-12-14 10:03:23 -08:00
apic
x86/apic: Fix parsing of the 'lapic' cmdline option
2013-02-20 11:24:36 +01:00
cpu
Merge branch 'for-3.9-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2013-02-19 21:58:52 -08:00
kprobes
kprobes/x86: Move kprobes stuff under arch/x86/kernel/kprobes/
2013-01-21 13:22:37 -05:00
.gitignore
…
alternative.c
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-10-01 10:47:45 -07:00
amd_gart_64.c
X86 & IA64: adapt for dma_map_ops changes
2012-03-28 16:36:31 +02:00
amd_nb.c
Merge branch 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-07-22 16:07:45 -07:00
apb_timer.c
Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-02-19 20:11:07 -08:00
aperture_64.c
x86/gart: Fix kmemleak warning
2012-06-06 11:58:38 +02:00
apm_32.c
cputime: Use accessors to read task cputime stats
2013-01-27 19:23:31 +01:00
asm-offsets_32.c
x86: Generate system call tables and unistd_*.h from tables
2011-11-17 13:35:37 -08:00
asm-offsets_64.c
x32: If configured, add x32 system calls to system call tables
2012-02-20 12:52:06 -08:00
asm-offsets.c
x86, um/x86: switch to generic sys_execve and kernel_execve
2012-09-30 22:53:32 -04:00
audit_64.c
…
bootflag.c
…
check.c
x86: kernel/check.c simple_strtoul cleanup
2012-05-15 15:36:41 -07:00
cpuid.c
Use get_online_cpus to avoid races involving CPU hotplug
2012-09-23 07:43:56 -07:00
crash_dump_32.c
x86: remove the second argument of k[un]map_atomic()
2012-03-20 21:48:15 +08:00
crash_dump_64.c
crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn
2011-03-23 19:47:19 -07:00
crash.c
x86/kexec: crash_vmclear_local_vmcss needs __rcu
2012-12-11 19:55:23 -02:00
devicetree.c
x86: dt: Use linear irq domain for ioapic(s)
2012-08-21 22:16:57 +02:00
doublefault_32.c
…
dumpstack_32.c
x86: Move call to print_modules() out of show_regs()
2012-06-20 14:33:48 +02:00
dumpstack_64.c
x86: Move call to print_modules() out of show_regs()
2012-06-20 14:33:48 +02:00
dumpstack.c
x86: Move call to print_modules() out of show_regs()
2012-06-20 14:33:48 +02:00
e820.c
x86, mm: Trim memory in memblock to be page aligned
2012-10-24 11:52:21 -07:00
early_printk.c
Revert "x86/early_printk: Replace obsolete simple_strtoul() usage with kstrtoint()"
2012-07-22 15:47:52 +02:00
early-quirks.c
x86, quirk: Fix SB600 revision check
2011-03-16 14:03:32 +01:00
entry_32.S
X86: Handle Hyper-V vmbus interrupts as special hypervisor interrupts
2013-02-12 16:27:15 -08:00
entry_64.S
X86: Handle Hyper-V vmbus interrupts as special hypervisor interrupts
2013-02-12 16:27:15 -08:00
ftrace.c
ftrace/x86: Add save_regs for i386 function calls
2012-07-19 13:20:37 -04:00
head32.c
x86, boot: Sanitize boot_params if not zeroed on creation
2013-01-29 01:22:17 -08:00
head64.c
x86, boot: Sanitize boot_params if not zeroed on creation
2013-01-29 01:22:17 -08:00
head_32.S
x86, head_32: Give the 6 label a real name
2013-02-12 15:48:42 -08:00
head_64.S
x86-64, hotplug: Add start_cpu0() entry point to head_64.S
2012-11-14 09:39:51 -08:00
head.c
memblock, x86: Replace memblock_x86_reserve/free_range() with generic ones
2011-07-14 11:47:53 -07:00
hpet.c
x86, hpet: Introduce x86_msi_ops.setup_hpet_msi
2013-01-28 10:48:30 +01:00
hw_breakpoint.c
x86: Use this_cpu_ops to optimize code
2010-12-30 12:20:28 +01:00
i386_ksyms_32.c
…
i387.c
x86/i387.c: Initialize thread xstate only on CPU0 only once
2012-11-14 15:28:11 -08:00
i8237.c
x86: Use syscore_ops instead of sysdev classes and sysdevs
2011-03-23 22:15:54 +01:00
i8253.c
x86: Use common i8253 clockevent
2011-07-01 10:37:14 +02:00
i8259.c
x86/irq/i8259: Fix incorrect comment
2012-08-22 09:34:24 +02:00
io_delay.c
…
ioport.c
x86: Use bitmap library functions
2011-02-17 14:59:22 +01:00
irq_32.c
x86: Use common threadinfo allocator
2012-05-08 14:08:44 +02:00
irq_64.c
x86: Add stack top margin for stack overflow checking
2011-12-07 09:27:11 +01:00
irq_work.c
…
irq.c
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-10-01 11:13:33 -07:00
irqinit.c
x86, 386 removal: Remove support for IRQ 13 FPU error reporting
2012-12-17 11:42:40 -08:00
jump_label.c
jump_label, x86: Fix section mismatch
2011-12-06 20:41:02 +01:00
kdebugfs.c
arch/x86/kernel/kdebugfs.c: Ensure a consistent return value in error case
2012-07-26 15:07:20 +02:00
kgdb.c
kgdb,x86: fix warning about unused variable
2012-10-12 06:37:34 -05:00
kvm.c
x86/apic: Allow x2apic without IR on VMware platform
2013-01-24 13:11:18 +01:00
kvmclock.c
x86: kvm guest: pvclock vsyscall support
2012-11-27 23:29:10 -02:00
ldt.c
Disintegrate asm/system.h for X86
2012-03-28 18:11:12 +01:00
machine_kexec_32.c
Disintegrate asm/system.h for X86
2012-03-28 18:11:12 +01:00
machine_kexec_64.c
…
Makefile
kprobes/x86: Move kprobes stuff under arch/x86/kernel/kprobes/
2013-01-21 13:22:37 -05:00
microcode_amd.c
x86, microcode, AMD: Add support for family 16h processors
2012-11-20 22:23:28 -08:00
microcode_core.c
Merge branch 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-10-01 11:15:17 -07:00
microcode_intel.c
x86, microcode: Add a refresh firmware flag to ->request_microcode_fw
2012-08-22 16:15:58 -07:00
mmconf-fam10h_64.c
…
module.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2012-07-24 13:34:56 -07:00
mpparse.c
Merge branch 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-05-29 20:14:53 -07:00
msr.c
x86/msr: Add capabilities check
2013-01-24 17:37:51 +01:00
nmi_selftest.c
x86/nmi: Clean up register_nmi_handler() usage
2012-06-20 14:23:17 +02:00
nmi.c
x86: Save cr2 in NMI in case NMIs take a page fault (for i386)
2012-06-08 18:51:12 -04:00
paravirt_patch_32.c
…
paravirt_patch_64.c
…
paravirt-spinlocks.c
…
paravirt.c
x86, pvops: Remove hooks for {rd,wr}msr_safe_regs
2012-06-07 11:41:08 -07:00
pci-calgary_64.c
x86/debug: Add KERN_<LEVEL> to bare printks, convert printks to pr_<level>
2012-06-06 09:17:22 +02:00
pci-dma.c
x86/dma-debug: Bump PREALLOC_DMA_DEBUG_ENTRIES
2013-01-24 17:34:18 +01:00
pci-iommu_table.c
arch/x86/kernel/pci-iommu_table.c: Convert sprintf_symbol to %pS
2011-05-10 10:21:35 +02:00
pci-nommu.c
X86: integrate CMA with DMA-mapping subsystem
2012-05-21 15:09:38 +02:00
pci-swiotlb.c
X86 & IA64: adapt for dma_map_ops changes
2012-03-28 16:36:31 +02:00
pcspeaker.c
…
perf_regs.c
perf: Fix off by one test in perf_reg_value()
2012-09-19 17:08:40 +02:00
probe_roms.c
x86/pci/probe_roms: Add missing __iomem annotation to pci_map_biosrom()
2012-09-05 10:52:25 +02:00
process_32.c
flagday: don't pass regs to copy_thread()
2012-11-28 23:43:42 -05:00
process_64.c
flagday: don't pass regs to copy_thread()
2012-11-28 23:43:42 -05:00
process.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
2012-12-12 12:22:13 -08:00
ptrace.c
x86: ptrace.c only needs export.h and not the full module.h
2013-02-14 12:56:12 -08:00
pvclock.c
x86: pvclock: generic pvclock vsyscall initialization
2012-11-27 23:29:09 -02:00
quirks.c
X86: drivers: remove __dev* attributes.
2013-01-03 15:57:04 -08:00
reboot_fixups_32.c
…
reboot.c
efi: Make 'efi_enabled' a function to query EFI facilities
2013-01-30 11:51:59 -08:00
relocate_kernel_32.S
kexec, x86: Fix incorrect jump back address if not preserving context
2011-07-21 11:19:28 +02:00
relocate_kernel_64.S
kexec, x86: Fix incorrect jump back address if not preserving context
2011-07-21 11:19:28 +02:00
resource.c
…
rtc.c
x86/time/rtc: Don't print extended CMOS year when reading RTC
2013-01-24 14:56:35 +01:00
setup_percpu.c
x86: Add read_mostly declaration/definition to variables from smp.h
2012-06-14 12:42:11 +02:00
setup.c
efi: Make 'efi_enabled' a function to query EFI facilities
2013-01-30 11:51:59 -08:00
signal.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
2012-12-20 18:05:28 -08:00
smp.c
x86/reboot: Update nonmi_ipi parameter
2012-05-14 11:49:38 +02:00
smpboot.c
Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-12-11 19:58:29 -08:00
stacktrace.c
x86: Swap save_stack_trace_regs parameters
2011-06-14 22:48:51 -04:00
step.c
ptrace: ensure arch_ptrace/ptrace_request can never race with SIGKILL
2013-01-22 10:08:00 -08:00
sys_x86_64.c
x86: Fix a typo
2013-01-24 16:22:10 +01:00
syscall_32.c
x86, syscall: Re-fix typo in comment
2011-11-18 16:25:07 -08:00
syscall_64.c
x32: If configured, add x32 system calls to system call tables
2012-02-20 12:52:06 -08:00
tboot.c
Revert "x86-64/efi: Use EFI to deal with platform wall clock (again)"
2012-12-15 15:20:41 -08:00
tce_64.c
Disintegrate asm/system.h for X86
2012-03-28 18:11:12 +01:00
test_nx.c
x86: Eliminate various 'set but not used' warnings
2011-05-21 19:10:33 +02:00
test_rodata.c
x86, extable: Remove open-coded exception table entries in arch/x86/kernel/test_rodata.c
2012-04-20 13:51:38 -07:00
time.c
MCA: delete all remaining traces of microchannel bus support.
2012-05-17 19:06:13 -04:00
tls.c
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-03-29 14:28:26 -07:00
tls.h
…
topology.c
x86, topology: Debug CPU0 hotplug
2012-11-14 15:28:11 -08:00
trace_clock.c
tracing,x86: Add a TSC trace_clock
2012-11-13 15:48:27 -05:00
traps.c
Merge branch 'x86/nuke386' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-12-19 13:02:23 -08:00
tsc_sync.c
x86/tsc: Reduce the TSC sync check time for core-siblings
2012-02-22 11:49:40 +01:00
tsc.c
Merge branch 'fortglx/3.9/time' of git://git.linaro.org/people/jstultz/linux into timers/core
2013-02-04 11:03:03 +01:00
uprobes.c
uprobes: Change handle_swbp() to expose bp_vaddr to handler_chain()
2013-02-08 17:47:11 +01:00
verify_cpu.S
x86: Fix common misspellings
2011-03-18 10:39:30 +01:00
vm86_32.c
thp: change split_huge_page_pmd() interface
2012-12-12 17:38:31 -08:00
vmlinux.lds.S
x86, realmode: Move ACPI wakeup to unified realmode code
2012-05-08 11:46:05 -07:00
vsmp_64.c
x86/apic/x2apic: Limit the vector reservation to the user specified mask
2012-07-06 11:00:22 +02:00
vsyscall_64.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2012-12-16 15:40:50 -08:00
vsyscall_emu_64.S
x86-64: Rework vsyscall emulation and add vsyscall= parameter
2011-08-10 19:26:46 -05:00
vsyscall_trace.h
x86-64: Add vsyscall:emulate_vsyscall trace event
2011-08-04 16:13:53 -07:00
x86_init.c
x86, io_apic: Introduce eoi_ioapic_pin call-back
2013-01-28 12:51:52 +01:00
x8664_ksyms_64.c
ftrace/x86: Add support for -mfentry to x86_64
2012-08-23 11:26:36 -04:00
xsave.c
x86, smap: Do not abuse the [f][x]rstor_checking() functions for user space
2012-09-25 15:42:18 -07:00