Daniel Borkmann b7552e1bcc bpf: rather use get_random_int for randomizations ...

Start address randomization and blinding in BPF currently use
prandom_u32(). prandom_u32() values are not exposed to unpriviledged
user space to my knowledge, but given other kernel facilities such as
ASLR, stack canaries, etc make use of stronger get_random_int(), we
better make use of it here as well given blinding requests successively
new random values. get_random_int() has minimal entropy pool depletion,
is not cryptographically secure, but doesn't need to be for our use
cases here.

Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2016-05-20 11:18:21 -07:00

..

bpf

bpf: rather use get_random_int for randomizations

2016-05-20 11:18:21 -07:00

configs

…

debug

mm/init: Add 'rodata=off' boot cmdline parameter to disable read-only kernel mappings

2016-02-22 08:51:37 +01:00

events

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2016-05-17 16:26:30 -07:00

gcov

gcov: use within_module() helper.

2015-12-04 22:46:25 +01:00

irq

This is the bulk of GPIO changes for kernel cycle v4.7:

2016-05-17 17:39:42 -07:00

livepatch

Merge branches 'for-4.7/core', 'for-4.7/livepatching-doc' and 'for-4.7/livepatching-ppc64' into for-linus

2016-05-17 12:06:35 +02:00

locking

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

2016-05-16 14:47:16 -07:00

power

PM / Hibernate: Call flush_icache_range() on pages restored in-place

2016-04-28 13:35:48 +01:00

printk

printk: add clear_idx symbol to vmcoreinfo

2016-03-17 15:09:34 -07:00

rcu

Merge branches 'doc.2016.04.19a', 'exp.2016.03.31d', 'fixes.2016.03.31d' and 'torture.2016.04.21a' into HEAD

2016-04-21 13:48:20 -07:00

sched

Power management material for v4.7-rc1

2016-05-16 19:17:22 -07:00

time

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

2016-05-17 09:49:28 -07:00

trace

This includes two new updates for the ftrace infrastructure.

2016-05-18 18:55:19 -07:00

.gitignore

certs: add .gitignore to stop git nagging about x509_certificate_list

2015-10-21 15:18:35 +01:00

acct.c

…

async.c

async: export current_is_async()

2015-11-19 17:51:48 +01:00

audit_fsnotify.c

wrappers for ->i_mutex access

2016-01-22 18:04:28 -05:00

audit_tree.c

audit: cleanup prune_tree_thread

2016-04-04 09:46:47 -04:00

audit_watch.c

don't bother with ->d_inode->i_sb - it's always equal to ->d_sb

2016-04-10 17:11:51 -04:00

audit.c

Merge branch 'stable-4.7' of git://git.infradead.org/users/pcmoore/audit

2016-05-18 18:46:55 -07:00

audit.h

security: Make inode argument of inode_getsecid non-const

2015-12-24 11:09:39 -05:00

auditfilter.c

audit: Fix typo in comment

2016-02-08 11:25:39 -05:00

auditsc.c

Merge branch 'stable-4.7' of git://git.infradead.org/users/pcmoore/audit

2016-05-18 18:46:55 -07:00

backtracetest.c

…

bounds.c

…

capability.c

…

cgroup_freezer.c

cgroup: kill cgrp_ss_priv[CGROUP_CANFORK_COUNT] and friends

2015-12-03 10:24:08 -05:00

cgroup_pids.c

cgroup_pids: fix a typo.

2015-12-14 14:54:37 -05:00

cgroup.c

cgroup: fix compile warning

2016-05-12 11:05:27 -04:00

compat.c

…

configs.c

…

context_tracking.c

context_tracking: Switch to new static_branch API

2015-11-24 09:56:43 +01:00

cpu_pm.c

kernel/cpu_pm: fix cpu_cluster_pm_exit comment

2015-09-03 02:42:20 +02:00

cpu.c

sched/hotplug: Make activate() the last hotplug step

2016-05-06 14:58:25 +02:00

cpuset.c

cgroup, cpuset: replace cpuset_post_attach_flush() with cgroup_subsys->post_attach callback

2016-04-25 15:45:14 -04:00

crash_dump.c

…

cred.c

kmemcg: account certain kmem allocations to memcg

2016-01-14 16:00:49 -08:00

delayacct.c

kmemcg: account certain kmem allocations to memcg

2016-01-14 16:00:49 -08:00

dma.c

…

elfcore.c

…

exec_domain.c

…

exit.c

oom: clear TIF_MEMDIE after oom_reaper managed to unmap the address space

2016-03-25 16:37:42 -07:00

extable.c

kernel/extable.c: remove duplicated include

2015-09-10 13:29:01 -07:00

fork.c

signals/sigaltstack: Implement SS_AUTODISARM flag

2016-05-03 08:37:59 +02:00

freezer.c

…

futex_compat.c

ptrace: use fsuid, fsgid, effective creds for fs access checks

2016-01-20 17:09:18 -08:00

futex.c

futex: Acknowledge a new waiter in counter before plist

2016-04-21 11:06:09 +02:00

groups.c

…

hung_task.c

kernel/hung_task.c: use timeout diff when timeout is updated

2016-03-22 15:36:02 -07:00

irq_work.c

treewide: Remove old email address

2015-11-23 09:44:58 +01:00

jump_label.c

treewide: Remove old email address

2015-11-23 09:44:58 +01:00

kallsyms.c

kallsyms: add support for relative offsets in kallsyms address table

2016-03-15 16:55:16 -07:00

kcmp.c

ptrace: use fsuid, fsgid, effective creds for fs access checks

2016-01-20 17:09:18 -08:00

Kconfig.freezer

…

Kconfig.hz

…

Kconfig.locks

…

Kconfig.preempt

…

kcov.c

kcov: don't profile branches in kcov

2016-04-28 19:34:04 -07:00

kexec_core.c

kexec: export OFFSET(page.compound_head) to find out compound tail page

2016-04-28 19:34:04 -07:00

kexec_file.c

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security

2016-03-17 11:33:45 -07:00

kexec_internal.h

kexec: move some memembers and definitions within the scope of CONFIG_KEXEC_FILE

2016-01-20 17:09:18 -08:00

kexec.c

kexec: set KEXEC_TYPE_CRASH before sanity_check_segment_list()

2016-01-20 17:09:18 -08:00

kmod.c

kmod: don't run async usermode helper as a child of kworker thread

2015-10-23 17:55:10 +09:00

kprobes.c

perf/x86/hw_breakpoints: Disallow kernel breakpoints unless kprobe-safe

2015-08-04 10:16:54 +02:00

ksysfs.c

rcu: Remove TINY_RCU bloat from pointless boot parameters

2015-12-07 16:59:37 -08:00

kthread.c

kernel/kthread.c:kthread_create_on_node(): clarify documentation

2015-09-04 16:54:41 -07:00

latencytop.c

sched/debug: Make schedstats a runtime tunable that is disabled by default

2016-02-09 11:54:23 +01:00

Makefile

kernel: add kcov code coverage

2016-03-22 15:36:02 -07:00

membarrier.c

sys_membarrier(): system-wide memory barrier (generic, x86)

2015-09-11 15:21:34 -07:00

memremap.c

memremap: add MEMREMAP_WC flag

2016-03-22 15:36:02 -07:00

module_signing.c

KEYS: Move the point of trust determination to __key_link()

2016-04-11 22:43:43 +01:00

module-internal.h

…

module.c

module: preserve Elf information for livepatch modules

2016-04-01 15:00:10 +02:00

notifier.c

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

2015-09-01 08:40:25 -07:00

nsproxy.c

cgroup: introduce cgroup namespaces

2016-02-16 13:04:58 -05:00

padata.c

…

panic.c

panic: change nmi_panic from macro to function

2016-03-22 15:36:02 -07:00

params.c

Nothing exciting, minor tweaks and cleanups.

2015-11-09 15:53:39 -08:00

pid_namespace.c

…

pid.c

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

2016-01-31 15:44:04 -08:00

profile.c

profile: hide unused functions when !CONFIG_PROC_FS

2016-03-22 15:36:02 -07:00

ptrace.c

ptrace: change __ptrace_unlink() to clear ->ptrace under ->siglock

2016-03-22 15:36:02 -07:00

range.c

…

reboot.c

kexec: split kexec_load syscall from kexec core code

2015-09-10 13:29:01 -07:00

relay.c

wrappers for ->i_mutex access

2016-01-22 18:04:28 -05:00

resource.c

/proc/iomem: only expose physical resource addresses to privileged users

2016-04-14 12:56:09 -07:00

seccomp.c

Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

2016-05-19 10:02:26 -07:00

signal.c

signals/sigaltstack: Report current flag bits in sigaltstack()

2016-05-04 08:34:14 +02:00

smp.c

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

2016-03-15 13:50:29 -07:00

smpboot.c

cpu/hotplug: Unpark smpboot threads from the state machine

2016-03-01 20:36:56 +01:00

smpboot.h

cpu/hotplug: Create hotplug threads

2016-03-01 20:36:56 +01:00

softirq.c

arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections

2016-03-25 16:37:42 -07:00

stacktrace.c

…

stop_machine.c

kernel/stop_machine.c: remove CONFIG_SMP dependencies

2016-01-16 11:17:24 -08:00

sys_ni.c

vfs: add copy_file_range syscall and vfs helper

2015-12-01 14:00:53 -05:00

sys.c

timer: convert timer_slack_ns from unsigned long to u64

2016-03-17 15:09:34 -07:00

sysctl_binary.c

fs/coredump: prevent fsuid=0 dumps into user-controlled directories

2016-03-22 15:36:02 -07:00

sysctl.c

perf core: Allow setting up max frame stack depth via sysctl

2016-04-27 10:20:39 -03:00

task_work.c

task_work: remove fifo ordering guarantee

2015-09-05 13:46:58 -07:00

taskstats.c

taskstats: use the libnl API to align nlattr on 64-bit

2016-04-23 20:13:25 -04:00

test_kprobes.c

…

torture.c

rcutorture: Dump trace buffer upon shutdown

2016-04-21 13:47:04 -07:00

tracepoint.c

kernel/...: convert pr_warning to pr_warn

2016-03-22 15:36:02 -07:00

tsacct.c

time, acct: Drop irq save & restore from __acct_update_integrals()

2016-02-29 09:53:09 +01:00

uid16.c

…

up.c

…

user_namespace.c

kernel/*: switch to memdup_user_nul()

2016-01-04 10:27:55 -05:00

user-return-notifier.c

…

user.c

…

utsname_sysctl.c

…

utsname.c

…

watchdog.c

watchdog: don't run proc_watchdog_update if new value is same as old

2016-03-17 15:09:34 -07:00

workqueue_internal.h

sched/core: Get rid of 'cpu' argument in wq_worker_sleeping()

2016-03-02 10:28:47 -05:00

workqueue.c

Merge branch 'for-4.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

2016-05-13 16:16:51 -07:00