Steven Rostedt (VMware) 21a9c7346e tracing: Fix possible double free on failure of allocating trace buffer ...

commit 4397f04575 upstream.

Jing Xia and Chunyan Zhang reported that on failing to allocate part of the
tracing buffer, memory is freed, but the pointers that point to them are not
initialized back to NULL, and later paths may try to free the freed memory
again. Jing and Chunyan fixed one of the locations that does this, but
missed a spot.

Link: http://lkml.kernel.org/r/20171226071253.8968-1-chunyan.zhang@spreadtrum.com

Fixes: 737223fbca ("tracing: Consolidate buffer allocation code")
Reported-by: Jing Xia <jing.xia@spreadtrum.com>
Reported-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-01-02 20:30:55 +01:00

..

bpf

bpf: fix integer overflows

2017-12-25 14:26:33 +01:00

cgroup

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

configs

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debug

kdb: Fix handling of kallsyms_symbol_next() return value

2017-12-14 09:52:58 +01:00

events

locking/barriers: Convert users of lockless_dereference() to READ_ONCE()

2017-12-25 14:26:21 +01:00

gcov

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

irq

genirq: Track whether the trigger type has been set

2017-11-30 08:40:52 +00:00

livepatch

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

locking

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

power

PM / s2idle: Clear the events_check_enabled flag

2017-12-20 10:10:23 +01:00

printk

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rcu

rcu: Fix up pending cbs check in rcu_prepare_for_idle

2017-11-24 08:37:04 +01:00

sched

sched/rt: Do not pull from current CPU if only one CPU to pull

2017-12-20 10:10:21 +01:00

time

posix-timer: Properly check sigevent->sigev_notify

2017-12-20 10:10:21 +01:00

trace

tracing: Fix possible double free on failure of allocating trace buffer

2018-01-02 20:30:55 +01:00

.gitignore

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acct.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

async.c

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audit_fsnotify.c

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audit_tree.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

audit_watch.c

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audit.c

audit: ensure that 'audit=1' actually enables audit for PID 1

2017-12-17 15:08:00 +01:00

audit.h

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auditfilter.c

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auditsc.c

Merge branch 'work.ipc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-09-14 17:37:26 -07:00

backtracetest.c

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bounds.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

capability.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

compat.c

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configs.c

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context_tracking.c

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cpu_pm.c

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cpu.c

smp/hotplug: Move step CPUHP_AP_SMPCFD_DYING to the correct place

2017-12-14 09:52:56 +01:00

crash_core.c

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crash_dump.c

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cred.c

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delayacct.c

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dma.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

elfcore.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

exec_domain.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

exit.c

waitid(): Avoid unbalanced user_access_end() on access_ok() error

2017-10-20 15:32:54 -04:00

extable.c

extable: Enable RCU if it is not watching in kernel_text_address()

2017-09-23 16:50:20 -04:00

fork.c

arch, mm: Allow arch_dup_mmap() to fail

2017-12-29 17:53:43 +01:00

freezer.c

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futex_compat.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

futex.c

Merge branch 'linus' into core/urgent, to pick up dependent commits

2017-11-04 08:53:04 +01:00

groups.c

kernel: make groups_sort calling a responsibility group_info allocators

2017-12-20 10:10:18 +01:00

hung_task.c

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irq_work.c

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jump_label.c

jump_label: Invoke jump_label_test() via early_initcall()

2017-12-14 09:53:13 +01:00

kallsyms.c

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kcmp.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

Kconfig.freezer

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Kconfig.hz

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Kconfig.locks

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Kconfig.preempt

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kcov.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

kexec_core.c

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kexec_file.c

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kexec_internal.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

kexec.c

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kmod.c

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kprobes.c

kprobes: Use synchronize_rcu_tasks() for optprobe with CONFIG_PREEMPT=y

2017-12-10 13:40:40 +01:00

ksysfs.c

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kthread.c

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latencytop.c

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Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

memremap.c

memremap: add scheduling point to devm_memremap_pages

2017-10-03 17:54:25 -07:00

module_signing.c

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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

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panic.c

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params.c

kernel/params.c: improve STANDARD_PARAM_DEF readability

2017-10-03 17:54:26 -07:00

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

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

reboot.c

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relay.c

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resource.c

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seccomp.c

locking/barriers: Convert users of lockless_dereference() to READ_ONCE()

2017-12-25 14:26:21 +01:00

signal.c

signal: Fix name of SIGEMT in #if defined() check

2017-11-01 17:04:57 -05:00

smp.c

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smpboot.c

watchdog/core, powerpc: Lock cpus across reconfiguration

2017-10-04 10:53:54 +02:00

smpboot.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

softirq.c

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stacktrace.c

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stop_machine.c

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sys_ni.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

sys.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

sysctl_binary.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

sysctl.c

pipe: match pipe_max_size data type with procfs

2017-12-14 09:53:08 +01:00

task_work.c

locking/barriers: Convert users of lockless_dereference() to READ_ONCE()

2017-12-25 14:26:21 +01:00

taskstats.c

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test_kprobes.c

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torture.c

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tracepoint.c

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tsacct.c

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ucount.c

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uid16.c

kernel: make groups_sort calling a responsibility group_info allocators

2017-12-20 10:10:18 +01:00

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

Merge branch 'linus' into core/urgent, to pick up dependent commits

2017-11-04 08:53:04 +01:00

watchdog.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

workqueue_internal.h

Merge branch 'for-4.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

2017-11-06 12:26:49 -08:00

workqueue.c

workqueue: replace pool->manager_arb mutex with a flag

2017-10-10 07:13:57 -07:00