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linux/kernel/trace
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Adrian Salido 4c0933247e ANDROID: tracing: fix race condition reading saved tgids 
Commit 939c7a4f04 ("tracing: Introduce saved_cmdlines_size file")
introduced ability to change saved cmdlines size. This resized saved
command lines but missed resizing tgid mapping as well.

Another issue is that when the resize happens, it removes saved command
lines and reallocates new memory for it. This introduced a race
condition when reading the global savecmd as this can be freed in the
middle of accessing it causing a use after free access. Fix this by
implementing locking.

Signed-off-by: Adrian Salido <salidoa@google.com>
Bug: 36007735
Change-Id: I334791ac35f8bcbd34362ed112aa624275a46947
(cherry picked from commit 7116d306da66de0de21e982024b4d3a3056f4461)
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
2018-10-04 14:16:57 +05:30
..
blktrace.c tracing/blktrace: Fix to allow setting same value 2018-09-09 20:04:34 +02:00
bpf_trace.c bpf: make tracing helpers gpl only 2015-10-26 21:53:34 -07:00
ftrace.c ftrace: Remove incorrect setting of glob search field 2018-02-16 20:09:47 +01:00
gpu-traces.c trace/events: add gpu trace events 2016-02-16 13:53:26 -08:00
Kconfig FROMLIST: tracing: Add support for preempt and irq enable/disable events 2017-10-15 23:53:55 +05:30
Makefile FROMLIST: tracing: Add support for preempt and irq enable/disable events 2017-10-15 23:53:55 +05:30
power-traces.c PM / sleep: export suspend_resume trace event 2015-01-30 02:10:41 +01:00
ring_buffer_benchmark.c ring_buffer: Remove unneeded smp_wmb() before wakeup of reader benchmark 2015-11-03 16:19:02 -05:00
ring_buffer.c ring-buffer: Allow for rescheduling when removing pages 2018-09-29 03:08:52 -07:00
rpm-traces.c
trace_benchmark.c tracing: Only benchmark the time tracepoints take if tracing is on 2015-11-02 13:34:58 -05:00
trace_benchmark.h tracing: Add tracepoint benchmark tracepoint 2014-05-29 22:49:54 -04:00
trace_branch.c tracing: Remove {start,stop}_branch_trace 2015-10-21 10:10:09 -04:00
trace_clock.c tracing: Export tracing clock functions 2015-05-12 15:56:57 -04:00
trace_entries.h tracing: %pF is only for function pointers 2015-03-25 08:57:22 -04:00
trace_event_perf.c treewide: Remove old email address 2015-11-23 09:44:58 +01:00
trace_events_filter_test.h
trace_events_filter.c tracing: Fix regex_match_front() to not over compare the test string 2018-05-16 10:06:51 +02:00
trace_events_trigger.c tracing: Fix possible double free in event_enable_trigger_func() 2018-08-06 16:24:29 +02:00
trace_events.c tracing: Fix converting enum's from the map in trace_event_eval_update() 2018-01-23 19:50:16 +01:00
trace_export.c tracing: ftrace_event_is_function() can return boolean 2015-11-02 14:28:05 -05:00
trace_functions_graph.c Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2018-07-13 13:22:34 +01:00
trace_functions.c tracing/trivial: Fix typos and make an int into a bool 2014-11-20 10:05:36 -05:00
trace_irqsoff.c FROMLIST: tracing: Add support for preempt and irq enable/disable events 2017-10-15 23:53:55 +05:30
trace_kdb.c tracing: Move trace_flags from global to a trace_array field 2015-09-30 15:22:55 -04:00
trace_kprobe.c tracing: Quiet gcc warning about maybe unused link variable 2018-08-06 16:24:30 +02:00
trace_mmiotrace.c tracing: Pass trace_array into trace_buffer_unlock_commit() 2015-09-25 17:38:44 -04:00
trace_nop.c tracing: Remove unneeded includes of debugfs.h and fs.h 2015-01-22 11:19:48 -05:00
trace_output.c trace: fix compilation for 4.1 2016-02-16 13:53:29 -08:00
trace_output.h tracing: Turn seq_print_user_ip() into a static function 2015-09-28 10:16:12 -04:00
trace_printk.c tracing: Handle NULL formats in hold_module_trace_bprintk_format() 2016-07-27 09:47:32 -07:00
trace_probe.c tracing: probeevent: Fix to support minus offset from symbol 2018-03-28 18:40:15 +02:00
trace_probe.h tracing: probeevent: Fix to support minus offset from symbol 2018-03-28 18:40:15 +02:00
trace_sched_switch.c sched/core: Fix trace_sched_switch() 2015-10-06 17:08:15 +02:00
trace_sched_wakeup.c Most of the changes are clean ups and small fixes. Some of them have 2015-11-06 13:30:20 -08:00
trace_selftest_dynamic.c
trace_selftest.c ftrace: Fix selftest goto location on error 2017-09-27 11:00:16 +02:00
trace_seq.c tracing: use %*pb[l] to print bitmaps including cpumasks and nodemasks 2015-02-13 21:21:37 -08:00
trace_stack.c tracing/stacktrace: Show entire trace if passed in function not found 2016-02-17 12:30:57 -08:00
trace_stat.c tracing: Convert the tracing facility over to use tracefs 2015-02-03 12:48:41 -05:00
trace_stat.h
trace_syscalls.c tracing: Move trace_flags from global to a trace_array field 2015-09-30 15:22:55 -04:00
trace_uprobe.c uprobes: Use synchronize_rcu() not synchronize_sched() 2018-09-09 20:04:34 +02:00
trace.c ANDROID: tracing: fix race condition reading saved tgids 2018-10-04 14:16:57 +05:30
trace.h trace: Add an option to show tgids in trace output 2016-02-16 13:53:27 -08:00