Kees Cook 2ca9bb456a sysctl: refactor sysctl string writing logic ...

Consolidate buffer length checking with new-line/end-of-line checking.
Additionally, instead of reading user memory twice, just do the
assignment during the loop.

This change doesn't affect the potential races here.  It was already
possible to read a sysctl that was in the middle of a write.  In both
cases, the string will always be NULL terminated.  The pre-existing race
remains a problem to be solved.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2014-06-06 16:08:13 -07:00

..

debug

kernel/printk: use symbolic defines for console loglevels

2014-06-04 16:54:17 -07:00

events

Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into next

2014-06-05 15:57:04 -07:00

gcov

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irq

genirq: Improve documentation to match current implementation

2014-05-27 10:16:44 +02:00

locking

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next

2014-06-03 14:00:15 -07:00

power

Merge branches 'pnp', 'powercap', 'pm-runtime' and 'pm-opp'

2014-06-03 23:13:00 +02:00

printk

kernel/printk: use symbolic defines for console loglevels

2014-06-04 16:54:17 -07:00

rcu

Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next

2014-06-03 12:57:53 -07:00

sched

printk: Add printk_deferred_once

2014-06-04 16:54:17 -07:00

time

Merge branch 'akpm' (patchbomb from Andrew) into next

2014-06-04 16:55:13 -07:00

trace

tracing: Use rcu_dereference_sched() for trace event triggers

2014-05-02 23:12:42 -04:00

.gitignore

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acct.c

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async.c

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audit_tree.c

inotify: Fix reporting of cookies for inotify events

2014-02-18 11:17:17 +01:00

audit_watch.c

inotify: Fix reporting of cookies for inotify events

2014-02-18 11:17:17 +01:00

audit.c

net: Use netlink_ns_capable to verify the permisions of netlink messages

2014-04-24 13:44:54 -04:00

audit.h

audit: Use struct net not pid_t to remember the network namespce to reply in

2014-03-20 10:10:53 -04:00

auditfilter.c

Merge git://git.infradead.org/users/eparis/audit

2014-04-12 12:38:53 -07:00

auditsc.c

Merge git://git.infradead.org/users/eparis/audit

2014-04-12 12:38:53 -07:00

backtracetest.c

kernel/backtracetest.c: replace no level printk by pr_info()

2014-06-04 16:54:14 -07:00

bounds.c

mm: do not allocate page->ptl dynamically, if spinlock_t fits to long

2013-12-20 12:25:45 -08:00

capability.c

kernel/capability.c: code clean-up

2014-06-04 16:54:15 -07:00

cgroup_freezer.c

cgroup: fix rcu_read_lock() leak in update_if_frozen()

2014-05-13 11:28:30 -04:00

cgroup.c

kernfs: move the last knowledge of sysfs out from kernfs

2014-05-27 14:33:17 -07:00

compat.c

kernel/compat.c: use sizeof() instead of sizeof

2014-06-04 16:54:19 -07:00

configs.c

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context_tracking.c

asmlinkage: Add explicit __visible to drivers/*, lib/*, kernel/*

2014-05-05 16:07:46 -07:00

cpu_pm.c

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cpu.c

kernel/cpu.c: convert printk to pr_foo()

2014-06-04 16:54:14 -07:00

cpuset.c

mm: page_alloc: use jump labels to avoid checking number_of_cpusets

2014-06-04 16:54:08 -07:00

crash_dump.c

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cred.c

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delayacct.c

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dma.c

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elfcore.c

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exec_domain.c

kernel/exec_domain.c: code clean-up

2014-06-04 16:54:15 -07:00

exit.c

signals: mv {dis,}allow_signal() from sched.h/exit.c to signal.[ch]

2014-06-06 16:08:11 -07:00

extable.c

asmlinkage: Make main_extable_sort_needed visible

2014-02-13 18:13:22 -08:00

fork.c

ptrace: fix fork event messages across pid namespaces

2014-06-06 16:08:11 -07:00

freezer.c

libata, freezer: avoid block device removal while system is frozen

2013-12-19 13:50:32 -05:00

futex_compat.c

compat: Get rid of (get|put)_compat_time(val|spec)

2014-02-02 14:09:12 -08:00

futex.c

Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next

2014-06-03 12:57:53 -07:00

groups.c

kernel/groups.c: remove return value of set_groups

2014-04-03 16:21:05 -07:00

hrtimer.c

Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next

2014-06-03 13:18:00 -07:00

hung_task.c

kernel/hung_task.c: convert simple_strtoul to kstrtouint

2014-06-04 16:54:15 -07:00

irq_work.c

perf/x86: Warn to early_printk() in case irq_work is too slow

2014-02-21 21:49:07 +01:00

itimer.c

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jump_label.c

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kallsyms.c

kernel: use macros from compiler.h instead of __attribute__((...))

2014-04-07 16:36:11 -07:00

kcmp.c

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Kconfig.freezer

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Kconfig.hz

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Kconfig.locks

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Kconfig.preempt

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kexec.c

kernel/kexec.c: convert printk to pr_foo()

2014-06-06 16:08:12 -07:00

kmod.c

signals: change wait_for_helper() to use kernel_sigaction()

2014-06-06 16:08:12 -07:00

kprobes.c

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ksysfs.c

kobject: Make support for uevent_helper optional.

2014-04-25 12:00:49 -07:00

kthread.c

kthread: fix return value of kthread_create() upon SIGKILL.

2014-06-04 16:53:51 -07:00

latencytop.c

kernel/latencytop.c: convert seq_printf to seq_puts

2014-06-04 16:54:15 -07:00

Makefile

Merge branch 'x86-asmlinkage-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-03-31 14:13:25 -07:00

module_signing.c

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module-internal.h

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module.c

Fixed one missing place for the new taint flag, and remove a warning

2014-05-01 10:35:01 -07:00

notifier.c

notifier: Substitute rcu_access_pointer() for rcu_dereference_raw()

2014-02-26 06:35:13 -08:00

nsproxy.c

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padata.c

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panic.c

kernel/panic.c: add "crash_kexec_post_notifiers" option for kdump after panic_notifers

2014-06-06 16:08:12 -07:00

params.c

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pid_namespace.c

pid_namespace: pidns_get() should check task_active_pid_ns() != NULL

2014-04-02 16:20:21 -07:00

pid.c

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posix-cpu-timers.c

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posix-timers.c

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profile.c

CPU hotplug notifiers registration fixes for 3.15-rc1

2014-04-07 14:55:46 -07:00

ptrace.c

kernel/compat: convert to COMPAT_SYSCALL_DEFINE

2014-03-06 15:35:10 +01:00

range.c

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reboot.c

kernel/reboot.c: convert simple_strtoul to kstrtoint

2014-06-04 16:54:15 -07:00

relay.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-04-12 14:49:50 -07:00

res_counter.c

kernel/res_counter.c: replace simple_strtoull by kstrtoull

2014-06-04 16:54:15 -07:00

resource.c

resources: Clarify sanity check message

2014-05-23 10:47:21 -06:00

seccomp.c

seccomp: fix memory leak on filter attach

2014-04-16 15:25:53 -04:00

signal.c

signals: introduce kernel_sigaction()

2014-06-06 16:08:12 -07:00

smp.c

smp: print more useful debug info upon receiving IPI on an offline CPU

2014-06-06 16:08:12 -07:00

smpboot.c

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smpboot.h

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softirq.c

Merge branch 'rcu/next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu

2014-05-22 11:36:10 +02:00

stacktrace.c

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stop_machine.c

kernel/stop_machine.c: kernel-doc warning fix

2014-06-04 16:54:15 -07:00

sys_ni.c

sys_sgetmask/sys_ssetmask: add CONFIG_SGETMASK_SYSCALL

2014-06-04 16:54:14 -07:00

sys.c

sched: Consolidate open coded implementations of nice level frobbing into nice_to_rlimit() and rlimit_to_nice()

2014-05-22 11:16:36 +02:00

sysctl_binary.c

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sysctl.c

sysctl: refactor sysctl string writing logic

2014-06-06 16:08:13 -07:00

system_certificates.S

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system_keyring.c

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task_work.c

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taskstats.c

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test_kprobes.c

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time.c

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timeconst.bc

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timer.c

timer: Prevent overflow in apply_slack

2014-04-30 13:46:17 +02:00

torture.c

torture: Remove __init from torture_init_begin/end

2014-05-14 09:46:30 -07:00

tracepoint.c

kernel/tracepoint.c: kernel-doc fixes

2014-06-04 16:54:15 -07:00

tsacct.c

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uid16.c

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up.c

smp: Rename __smp_call_function_single() to smp_call_function_single_async()

2014-02-24 14:47:15 -08:00

user_namespace.c

user namespace: fix incorrect memory barriers

2014-04-14 16:03:02 -07:00

user-return-notifier.c

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user.c

kernel/user.c: drop unused field 'files' from user_struct

2014-06-04 16:54:16 -07:00

utsname_sysctl.c

kernel/utsname_sysctl.c: replace obsolete __initcall by device_initcall

2014-06-04 16:54:15 -07:00

utsname.c

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watchdog.c

kernel/watchdog.c:touch_softlockup_watchdog(): use raw_cpu_write()

2014-04-18 16:40:08 -07:00

workqueue_internal.h

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workqueue.c

Linux 3.15-rc6

2014-05-22 10:28:56 +02:00