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11bbd8b416f8abf40900dc5041152892f873d915
linux/kernel
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Michal Koutný 11bbd8b416 prctl_set_mm: refactor checks from validate_prctl_map 
Despite comment of validate_prctl_map claims there are no capability
checks, it is not completely true since commit 4d28df6152 ("prctl: Allow
local CAP_SYS_ADMIN changing exe_file").  Extract the check out of the
function and make the function perform purely arithmetic checks.

This patch should not change any behavior, it is mere refactoring for
following patch.

[akpm@linux-foundation.org: coding style fixes]
Link: http://lkml.kernel.org/r/20190502125203.24014-2-mkoutny@suse.com
Signed-off-by: Michal Koutný <mkoutny@suse.com>
Reviewed-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Reviewed-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
Cc: Laurent Dufour <ldufour@linux.ibm.com>
Cc: Mateusz Guzik <mguzik@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Yang Shi <yang.shi@linux.alibaba.com>
Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-06-01 15:51:31 -07:00
..
bpf
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cgroup
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configs
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debug
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2019-05-21 10:50:46 +02:00
dma
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2019-05-21 10:50:46 +02:00
events
mm/mmu_notifier: use correct mmu_notifier events for each invalidation
2019-05-14 09:47:49 -07:00
gcov
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2019-05-21 10:50:46 +02:00
irq
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2019-05-21 10:50:46 +02:00
livepatch
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2019-05-21 11:28:45 +02:00
locking
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2019-05-30 11:26:37 -07:00
power
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2019-05-21 10:50:46 +02:00
printk
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2019-05-21 11:28:45 +02:00
rcu
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2019-05-21 10:50:46 +02:00
sched
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2019-05-30 11:26:37 -07:00
time
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2019-05-21 10:50:46 +02:00
trace
Merge tag 'trace-v5.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2019-05-29 11:26:40 -07:00
.gitignore
Provide in-kernel headers to make extending kernel easier
2019-04-29 16:48:03 +02:00
acct.c
acct_on(): don't mess with freeze protection
2019-04-04 21:04:13 -04:00
async.c
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2019-04-09 14:19:06 +02:00
audit_fsnotify.c
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2019-05-30 11:26:37 -07:00
audit_tree.c
fsnotify: switch send_to_group() and ->handle_event to const struct qstr *
2019-04-26 13:51:03 -04:00
audit_watch.c
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2019-05-30 11:26:35 -07:00
audit.c
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2019-05-30 11:26:35 -07:00
audit.h
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2019-05-30 11:26:35 -07:00
auditfilter.c
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2019-05-30 11:26:35 -07:00
auditsc.c
Merge branch 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-05-07 20:03:32 -07:00
backtracetest.c
backtrace-test: Simplify stack trace handling
2019-04-29 12:37:47 +02:00
bounds.c
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capability.c
LSM: add SafeSetID module that gates setid calls
2019-01-25 11:22:43 -08:00
compat.c
kernel/compat.c: mark expected switch fall-throughs
2019-05-15 08:16:14 -07:00
configs.c
kernel/configs: use .incbin directive to embed config_data.gz
2019-03-07 18:32:02 -08:00
context_tracking.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00
cpu_pm.c
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cpu.c
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-05-06 14:50:46 -07:00
crash_core.c
kexec: export PG_offline to VMCOREINFO
2019-03-05 21:07:14 -08:00
crash_dump.c
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2019-05-21 10:50:45 +02:00
cred.c
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2019-05-24 17:27:11 +02:00
delayacct.c
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2019-05-21 11:52:39 +02:00
dma.c
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elfcore.c
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exec_domain.c
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exit.c
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2019-05-21 10:50:45 +02:00
extable.c
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2019-05-30 11:26:35 -07:00
fail_function.c
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2019-04-09 14:19:06 +02:00
fork.c
kernel/fork.c: make max_threads symbol static
2019-06-01 15:51:31 -07:00
freezer.c
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2019-05-21 10:50:45 +02:00
futex.c
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2019-05-30 11:26:35 -07:00
gen_ikh_data.sh
Provide in-kernel headers to make extending kernel easier
2019-04-29 16:48:03 +02:00
groups.c
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hung_task.c
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2019-05-21 10:50:45 +02:00
iomem.c
mm/resource: Use resource_overlaps() to simplify region_intersects()
2019-04-19 12:59:36 +02:00
irq_work.c
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jump_label.c
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kallsyms.c
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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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2019-05-21 10:50:46 +02:00
kcov.c
kcov: convert kcov.refcount to refcount_t
2019-03-07 18:32:02 -08:00
kexec_core.c
power/suspend: Add function to disable secondaries for suspend
2019-05-03 19:42:41 +02:00
kexec_file.c
mm: memblock: make keeping memblock memory opt-in rather than opt-out
2019-05-14 09:47:50 -07:00
kexec_internal.h
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kexec.c
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kheaders.c
Provide in-kernel headers to make extending kernel easier
2019-04-29 16:48:03 +02:00
kmod.c
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kprobes.c
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ksysfs.c
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2019-05-30 11:26:39 -07:00
kthread.c
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2019-05-21 10:50:45 +02:00
latencytop.c
kernel/latencytop.c: rename clear_all_latency_tracing to clear_tsk_latency_tracing
2019-05-14 19:52:49 -07:00
Makefile
kernel/Makefile: don't assume that kernel/gen_ikh_data.sh is executable
2019-05-14 19:52:47 -07:00
memremap.c
kernel/memremap.c: remove the unused device_private_entry_fault() export
2019-05-14 09:47:51 -07:00
module_signing.c
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2019-05-24 17:27:11 +02:00
module-internal.h
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module.c
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notifier.c
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nsproxy.c
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padata.c
padata: Replace padata_attr_type default_attrs field with groups
2019-04-25 22:06:11 +02:00
panic.c
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2019-05-21 10:50:45 +02:00
params.c
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pid_namespace.c
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pid.c
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profile.c
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ptrace.c
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range.c
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reboot.c
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2019-05-21 10:50:45 +02:00
relay.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-03-12 13:27:20 -07:00
resource.c
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2019-05-21 10:50:45 +02:00
rseq.c
rseq: Remove superfluous rseq_len from task_struct
2019-04-19 12:39:32 +02:00
seccomp.c
Merge tag 'audit-pr-20190507' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
2019-05-07 19:06:04 -07:00
signal.c
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smp.c
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2019-05-21 10:50:45 +02:00
smpboot.c
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2019-05-21 10:50:45 +02:00
smpboot.h
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softirq.c
softirq: Remove tasklet_hrtimer
2019-03-22 14:36:02 +01:00
stackleak.c
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stacktrace.c
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2019-05-21 10:50:45 +02:00
stop_machine.c
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2019-05-24 17:27:11 +02:00
sys_ni.c
signal: support CLONE_PIDFD with pidfd_send_signal
2019-05-07 14:31:03 +02:00
sys.c
prctl_set_mm: refactor checks from validate_prctl_map
2019-06-01 15:51:31 -07:00
sysctl_binary.c
kernel/sysctl: add panic_print into sysctl
2019-01-04 13:13:47 -08:00
sysctl.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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2019-05-21 11:52:39 +02:00
torture.c
torture: Don't try to offline the last CPU
2019-03-26 14:42:53 -07:00
tracepoint.c
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tsacct.c
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ucount.c
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uid16.c
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uid16.h
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umh.c
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up.c
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user_namespace.c
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user-return-notifier.c
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user.c
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utsname_sysctl.c
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utsname.c
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watchdog_hld.c
kernel/watchdog_hld.c: hard lockup message should end with a newline
2019-04-19 09:46:05 -07:00
watchdog.c
watchdog: Fix typo in comment
2019-04-18 14:05:51 +02:00
workqueue_internal.h
sched/core, workqueues: Distangle worker accounting from rq lock
2019-04-16 16:55:15 +02:00
workqueue.c
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