lineage_android_kernel_xiao.../kernel
zhangyi (F) 037a6cf0d5 tracing: Do not free iter->trace in fail path of tracing_open_pipe()
commit e7f0c424d0806b05d6f47be9f202b037eb701707 upstream.

Commit d716ff71dd ("tracing: Remove taking of trace_types_lock in
pipe files") use the current tracer instead of the copy in
tracing_open_pipe(), but it forget to remove the freeing sentence in
the error path.

There's an error path that can call kfree(iter->trace) after the iter->trace
was assigned to tr->current_trace, which would be bad to free.

Link: http://lkml.kernel.org/r/1550060946-45984-1-git-send-email-yi.zhang@huawei.com

Cc: stable@vger.kernel.org
Fixes: d716ff71dd ("tracing: Remove taking of trace_types_lock in pipe files")
Signed-off-by: zhangyi (F) <yi.zhang@huawei.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-23 13:19:45 +01:00
..
bpf bpf: check pending signals while verifying programs 2018-12-21 14:11:38 +01:00
configs config: android: enable CONFIG_SECCOMP 2016-10-11 15:06:32 -07:00
debug kdb: use memmove instead of overlapping memcpy 2018-12-08 13:05:05 +01:00
events perf core: Fix perf_proc_update_handler() bug 2019-03-13 14:04:55 -07:00
gcov gcov: support GCC 7.1 2017-09-02 07:07:53 +02:00
irq genirq: Fix race on spurious interrupt detection 2018-11-13 11:17:01 -08:00
livepatch
locking futex,rt_mutex: Restructure rt_mutex_finish_proxy_lock() 2019-03-13 14:05:01 -07:00
power PM / sleep: wakeup: Fix build error caused by missing SRCU support 2018-09-09 20:01:23 +02:00
printk printk: Fix panic caused by passing log_buf_len to command line 2018-11-13 11:17:01 -08:00
rcu rcu: Call touch_nmi_watchdog() while printing stall warnings 2018-05-30 07:50:50 +02:00
sched sched/core: Allow __sched_setscheduler() in interrupts when PI is not used 2018-12-01 09:44:25 +01:00
time timekeeping: Use proper seqcount initializer 2019-02-12 19:44:54 +01:00
trace tracing: Do not free iter->trace in fail path of tracing_open_pipe() 2019-03-23 13:19:45 +01:00
.gitignore
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
Makefile kernel/watchdog.c: move hardlockup detector to separate file 2017-06-17 06:41:57 +02:00
acct.c kernel/acct.c: fix the acct->needcheck check in check_free_space() 2018-01-10 09:29:51 +01:00
async.c kernel/async.c: revert "async: simplify lowest_in_progress()" 2018-02-17 13:21:18 +01:00
audit.c audit: return on memory error to avoid null pointer dereference 2018-05-30 07:50:49 +02:00
audit.h
audit_fsnotify.c
audit_tree.c
audit_watch.c audit: fix use-after-free in audit_add_watch 2018-09-26 08:36:37 +02:00
auditfilter.c audit: allow not equal op for audit by executable 2018-08-03 07:55:25 +02:00
auditsc.c audit: allow not equal op for audit by executable 2018-08-03 07:55:25 +02:00
backtracetest.c
bounds.c kbuild: fix kernel/bounds.c 'W=1' warning 2018-11-13 11:16:57 -08:00
capability.c ptrace: Capture the ptracer's creds not PT_PTRACE_CAP 2017-01-06 10:40:13 +01:00
cgroup.c cgroup: Fix deadlock in cpu hotplug path 2018-10-13 09:18:56 +02:00
cgroup_freezer.c
cgroup_pids.c cgroup/pids: remove spurious suspicious RCU usage warning 2017-03-26 13:05:58 +02:00
compat.c
configs.c
context_tracking.c
cpu.c Revert "x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation" 2018-11-23 12:57:41 +01:00
cpu_pm.c
cpuset.c sched/cpuset/pm: Fix cpuset vs. suspend-resume bugs 2017-10-12 11:51:25 +02:00
crash_dump.c
cred.c
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c kernel/exit.c: release ptraced tasks before zap_pid_ns_processes 2019-02-06 17:33:29 +01:00
extable.c kernel/extable.c: mark core_kernel_text notrace 2017-07-21 07:42:21 +02:00
fork.c fork: record start_time late 2019-01-13 10:03:51 +01:00
freezer.c
futex.c futex,rt_mutex: Restructure rt_mutex_finish_proxy_lock() 2019-03-13 14:05:01 -07:00
futex_compat.c
groups.c kernel: make groups_sort calling a responsibility group_info allocators 2018-01-10 09:29:52 +01:00
hung_task.c kernel/hung_task.c: break RCU locks based on jiffies 2019-02-12 19:44:59 +01:00
irq_work.c
jump_label.c jump_label: Invoke jump_label_test() via early_initcall() 2017-12-14 09:28:24 +01:00
kallsyms.c
kcmp.c
kcov.c kcov: ensure irq code sees a valid area 2018-08-03 07:55:12 +02:00
kexec.c
kexec_core.c objtool, x86: Add several functions and files to the objtool whitelist 2018-06-05 10:28:57 +02:00
kexec_file.c
kexec_internal.h
kmod.c
kprobes.c kprobes: Return error if we fail to reuse kprobe instead of BUG_ON() 2018-11-13 11:16:50 -08:00
ksysfs.c
kthread.c kthread, tracing: Don't expose half-written comm when creating kthreads 2018-08-03 07:55:12 +02:00
latencytop.c
membarrier.c Fix: Disable sys_membarrier when nohz_full is enabled 2017-03-12 06:41:45 +01:00
memremap.c mm, devm_memremap_pages: kill mapping "System RAM" support 2019-01-13 10:03:51 +01:00
module-internal.h
module.c module: exclude SHN_UNDEF symbols from kallsyms api 2018-10-03 17:01:48 -07:00
module_signing.c
notifier.c
nsproxy.c
padata.c padata: free correct variable 2017-05-20 14:28:40 +02:00
panic.c panic: avoid deadlocks in re-entrant console drivers 2018-12-29 13:40:16 +01:00
params.c
pid.c pidns: disable pid allocation if pid_ns_prepare_proc() is failed in alloc_pid() 2018-04-13 19:47:53 +02:00
pid_namespace.c pid_ns: Sleep in TASK_INTERRUPTIBLE in zap_pid_ns_processes 2017-05-25 15:44:38 +02:00
profile.c
ptrace.c ptrace: Properly initialize ptracer_cred on fork 2017-06-14 15:05:54 +02:00
range.c
reboot.c
relay.c kernel/relay.c: limit kmalloc size to KMALLOC_MAX_SIZE 2018-05-30 07:50:29 +02:00
resource.c resource: fix integer overflow at reallocation 2018-04-24 09:34:09 +02:00
seccomp.c seccomp: Move speculation migitation control to arch code 2018-05-22 16:58:02 +02:00
signal.c signal: Restore the stop PTRACE_EVENT_EXIT 2019-02-20 10:18:33 +01:00
smp.c cpu/hotplug: Fix SMT supported evaluation 2018-08-15 18:14:53 +02:00
smpboot.c kthread/smpboot: do not park in kthread_create_on_cpu() 2016-10-11 15:06:33 -07:00
smpboot.h
softirq.c Mark HI and TASKLET softirq synchronous 2018-08-15 18:14:42 +02:00
stacktrace.c stacktrace, lockdep: Fix address, newline ugliness 2017-02-14 15:25:42 -08:00
stop_machine.c stop_machine: Use raw spinlocks 2018-08-03 07:55:24 +02:00
sys.c sys: don't hold uts_sem while accessing userspace memory 2018-09-09 20:01:24 +02:00
sys_ni.c
sysctl.c proc/sysctl: fix return error for proc_doulongvec_minmax() 2019-02-12 19:44:59 +01:00
sysctl_binary.c
task_work.c
taskstats.c taskstats: fix the length of cgroupstats_cmd_get_policy 2016-11-03 16:55:58 -04:00
test_kprobes.c
torture.c
tracepoint.c tracepoint: Do not warn on ENOMEM 2018-05-09 09:50:20 +02:00
tsacct.c
ucount.c kernel/ucount.c: mark user_header with kmemleak_ignore() 2017-06-17 06:41:51 +02:00
uid16.c kernel: make groups_sort calling a responsibility group_info allocators 2018-01-10 09:29:52 +01:00
up.c
user-return-notifier.c
user.c
user_namespace.c userns: move user access out of the mutex 2018-09-09 20:01:24 +02:00
utsname.c
utsname_sysctl.c sys: don't hold uts_sem while accessing userspace memory 2018-09-09 20:01:24 +02:00
watchdog.c kernel/watchdog: prevent false hardlockup on overloaded system 2017-06-17 06:41:57 +02:00
watchdog_hld.c kernel/watchdog: prevent false hardlockup on overloaded system 2017-06-17 06:41:57 +02:00
workqueue.c workqueue: use put_device() instead of kfree() 2018-05-30 07:50:36 +02:00
workqueue_internal.h workqueue: Fix NULL pointer dereference 2017-11-15 15:53:17 +01:00