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Mateusz Guzik d0259cc85b audit: fix exe_file access in audit_exe_compare 
commit 5efc244346f9f338765da3d592f7947b0afdc4b5 upstream.

Prior to the change the function would blindly deference mm, exe_file
and exe_file->f_inode, each of which could have been NULL or freed.

Use get_task_exe_file to safely obtain stable exe_file.

Signed-off-by: Mateusz Guzik <mguzik@redhat.com>
Acked-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Acked-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-24 10:07:36 +02:00
..
bpf
bpf, inode: disallow userns mounts
2016-06-24 10:18:17 -07:00
configs
…
debug
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events
uprobes: Fix the memcg accounting
2016-09-15 08:27:53 +02:00
gcov
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irq
genirq/msi: Make sure PCI MSIs are activated early
2016-09-07 08:32:38 +02:00
livepatch
livepatch: x86: fix relocation computation with kASLR
2015-11-11 17:36:04 +01:00
locking
locking/qspinlock: Fix spin_unlock_wait() some more
2016-07-27 09:47:29 -07:00
power
PM / sleep: Clear pm_suspend_global_flags upon hibernate
2016-04-12 09:09:05 -07:00
printk
printk: do cond_resched() between lines while outputting to consoles
2016-02-17 12:30:57 -08:00
rcu
Merge branches 'doc.2015.10.06a', 'percpu-rwsem.2015.10.06a' and 'torture.2015.10.06a' into HEAD
2015-10-07 16:06:25 -07:00
sched
sched/numa: Fix use-after-free bug in the task_numa_compare
2016-09-15 08:27:45 +02:00
time
timekeeping: Avoid taking lock in NMI path with CONFIG_DEBUG_TIMEKEEPING
2016-09-15 08:27:52 +02:00
trace
tracing: Handle NULL formats in hold_module_trace_bprintk_format()
2016-07-27 09:47:32 -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
…
audit_fsnotify.c
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audit_tree.c
audit: audit_tree_match can be boolean
2015-11-04 08:23:51 -05:00
audit_watch.c
audit: fix exe_file access in audit_exe_compare
2016-09-24 10:07:36 +02:00
audit.c
mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd
2015-11-06 17:50:42 -08:00
audit.h
audit: audit_tree_match can be boolean
2015-11-04 08:23:51 -05:00
auditfilter.c
audit: fix comment block whitespace
2015-11-04 08:23:51 -05:00
auditsc.c
audit: fix a double fetch in audit_log_single_execve_arg()
2016-08-20 18:09:22 +02:00
backtracetest.c
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bounds.c
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capability.c
kernel: Add noaudit variant of ns_capable()
2016-09-15 08:27:50 +02:00
cgroup_freezer.c
cgroup: fix handling of multi-destination migration from subtree_control enabling
2015-12-03 10:18:21 -05:00
cgroup_pids.c
cgroup_pids: don't account for the root cgroup
2015-12-03 10:18:21 -05:00
cgroup.c
cgroup: set css->id to -1 during init
2016-08-10 11:49:27 +02:00
compat.c
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configs.c
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context_tracking.c
context_tracking: avoid irq_save/irq_restore on guest entry and exit
2015-11-10 12:06:23 +01:00
cpu_pm.c
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cpu.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-11-03 18:03:50 -08:00
cpuset.c
cgroup, cpuset: replace cpuset_post_attach_flush() with cgroup_subsys->post_attach callback
2016-05-04 14:48:49 -07:00
crash_dump.c
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cred.c
cred: Reject inodes with invalid ids in set_create_file_as()
2016-09-15 08:27:49 +02:00
delayacct.c
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dma.c
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elfcore.c
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exec_domain.c
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exit.c
wait/ptrace: assume __WALL if the child is traced
2016-06-07 18:14:35 -07:00
extable.c
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fork.c
mm: introduce get_task_exe_file
2016-09-24 10:07:36 +02:00
freezer.c
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futex_compat.c
ptrace: use fsuid, fsgid, effective creds for fs access checks
2016-02-25 12:01:16 -08:00
futex.c
futex: Acknowledge a new waiter in counter before plist
2016-05-04 14:48:43 -07:00
groups.c
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hung_task.c
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irq_work.c
treewide: Remove old email address
2015-11-23 09:44:58 +01:00
jump_label.c
locking/static_key: Fix concurrent static_key_slow_inc()
2016-07-27 09:47:29 -07:00
kallsyms.c
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kcmp.c
ptrace: use fsuid, fsgid, effective creds for fs access checks
2016-02-25 12:01:16 -08:00
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_core.c
kexec: use file name as the output message prefix
2015-11-06 17:50:42 -08:00
kexec_file.c
kexec: fix double-free when failing to relocate the purgatory
2016-09-24 10:07:36 +02:00
kexec_internal.h
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kexec.c
kexec: use file name as the output message prefix
2015-11-06 17:50:42 -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
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ksysfs.c
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kthread.c
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latencytop.c
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Makefile
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membarrier.c
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memremap.c
devm_memremap: Fix error value when memremap failed
2016-03-03 15:07:08 -08:00
module_signing.c
KEYS: Merge the type-specific data with the payload data
2015-10-21 15:18:36 +01:00
module-internal.h
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module.c
module: Invalidate signatures on force-loaded modules
2016-08-20 18:09:27 +02:00
notifier.c
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nsproxy.c
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padata.c
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panic.c
printk: do cond_resched() between lines while outputting to consoles
2016-02-17 12:30:57 -08:00
params.c
Nothing exciting, minor tweaks and cleanups.
2015-11-09 15:53:39 -08:00
pid_namespace.c
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pid.c
pidns: fix NULL dereference in __task_pid_nr_ns()
2015-11-24 12:03:55 -08:00
profile.c
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ptrace.c
ptrace: use fsuid, fsgid, effective creds for fs access checks
2016-02-25 12:01:16 -08:00
range.c
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reboot.c
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relay.c
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resource.c
kernel/resource.c: fix muxed resource handling in __request_region()
2016-03-03 15:07:29 -08:00
seccomp.c
seccomp: always propagate NO_NEW_PRIVS on tsync
2016-03-03 15:07:25 -08:00
signal.c
kernel/signal.c: unexport sigsuspend()
2015-11-20 16:17:32 -08:00
smp.c
mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd
2015-11-06 17:50:42 -08:00
smpboot.c
stop_machine: Kill smp_hotplug_thread->pre_unpark, introduce stop_machine_unpark()
2015-10-20 10:23:55 +02:00
smpboot.h
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softirq.c
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stacktrace.c
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stop_machine.c
kernel: remove stop_machine() Kconfig dependency
2015-12-12 10:15:34 -08:00
sys_ni.c
mm: mlock: add new mlock system call
2015-11-05 19:34:48 -08:00
sys.c
prctl: take mmap sem for writing to protect against others
2016-02-25 12:01:25 -08:00
sysctl_binary.c
fs/coredump: prevent fsuid=0 dumps into user-controlled directories
2016-04-12 09:08:58 -07:00
sysctl.c
pipe: limit the per-user amount of pages allocated in pipes
2016-06-07 18:14:35 -07:00
task_work.c
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taskstats.c
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test_kprobes.c
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torture.c
torture: Consolidate cond_resched_rcu_qs() into stutter_wait()
2015-10-06 11:25:01 -07:00
tracepoint.c
tracepoint: Give priority to probes of tracepoints
2015-10-25 21:33:54 -04:00
tsacct.c
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uid16.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.c
watchdog: don't run proc_watchdog_update if new value is same as old
2016-04-12 09:08:54 -07:00
workqueue_internal.h
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workqueue.c
workqueue: fix rebind bound workers warning
2016-05-18 17:06:50 -07:00