Steven Rostedt (VMware)
a9737bb91c
tracing: Fix possible double free in event_enable_trigger_func()
...
commit 15cc78644d0075e76d59476a4467e7143860f660 upstream.
There was a case that triggered a double free in event_trigger_callback()
due to the called reg() function freeing the trigger_data and then it
getting freed again by the error return by the caller. The solution there
was to up the trigger_data ref count.
Code inspection found that event_enable_trigger_func() has the same issue,
but is not as easy to trigger (requires harder to trigger failures). It
needs to be solved slightly different as it needs more to clean up when the
reg() function fails.
Link: http://lkml.kernel.org/r/20180725124008.7008e586@gandalf.local.home
Cc: stable@vger.kernel.org
Fixes: 7862ad1846 ("tracing: Add 'enable_event' and 'disable_event' event trigger commands")
Reivewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-03 07:55:12 +02:00
..
blktrace.c
blktrace: fix unlocked registration of tracepoints
2018-02-25 11:05:41 +01:00
bpf_trace.c
bpf: fix bpf_trace_printk on 32 bit archs
2017-08-30 10:21:39 +02:00
ftrace.c
ftrace: Remove incorrect setting of glob search field
2018-02-17 13:21:20 +01:00
Kconfig
This release cycle is rather small. Just a few fixes to tracing.
2016-10-06 11:48:41 -07:00
Makefile
Disable the __builtin_return_address() warning globally after all
2016-10-12 10:23:41 -07:00
power-traces.c
cpufreq: schedutil: New governor based on scheduler utilization data
2016-04-02 01:09:12 +02:00
ring_buffer.c
ring-buffer: Mask out the info bits when returning buffer page length
2018-01-02 20:35:07 +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
rpm-traces.c
trace.c
tracing: Fix crash when it fails to alloc ring buffer
2018-01-02 20:35:07 +01:00
trace.h
ftrace: Fix function pid filter on instances
2017-04-21 09:31:22 +02:00
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
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: Add NMI tracing in hwlat detector
2016-09-02 12:47:55 -04:00
trace_event_perf.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2016-05-17 16:26:30 -07:00
trace_events.c
tracing: Fix converting enum's from the map in trace_event_eval_update()
2018-01-23 19:57:07 +01:00
trace_events_filter.c
tracing: Fix regex_match_front() to not over compare the test string
2018-05-16 10:08:43 +02:00
trace_events_filter_test.h
trace_events_hist.c
tracing: Exclude 'generic fields' from histograms
2017-12-25 14:23:44 +01:00
trace_events_trigger.c
tracing: Fix possible double free in event_enable_trigger_func()
2018-08-03 07:55:12 +02:00
trace_export.c
tracing: ftrace_event_is_function() can return boolean
2015-11-02 14:28:05 -05:00
trace_functions.c
ftrace: Have set_ftrace_pid use the bitmap like events do
2016-06-20 09:54:19 -04:00
trace_functions_graph.c
tracing: Fix missing return symbol in function_graph output
2018-07-11 16:26:43 +02:00
trace_hwlat.c
tracing: Fix hwlat kthread migration
2017-02-09 08:08:28 +01:00
trace_irqsoff.c
tracing: Remove redundant reset per-CPU buff in irqsoff tracer
2016-03-18 16:39:11 -04:00
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: probeevent: Fix to support minus offset from symbol
2018-03-28 18:39:23 +02:00
trace_mmiotrace.c
tracing: Expose CPU physical addresses (resource values) for PCI devices
2016-06-20 09:54:22 -04:00
trace_nop.c
tracing: Fix typoes in code comment and printk in trace_nop.c
2016-03-08 11:23:57 -05:00
trace_output.c
tracing: Add NMI tracing in hwlat detector
2016-09-02 12:47:55 -04:00
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()
2016-06-20 09:46:12 -04:00
trace_probe.c
tracing: probeevent: Fix to support minus offset from symbol
2018-03-28 18:39:23 +02:00
trace_probe.h
tracing: probeevent: Fix to support minus offset from symbol
2018-03-28 18:39:23 +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.c
ftrace: Fix selftest goto location on error
2017-09-27 14:39:23 +02:00
trace_selftest_dynamic.c
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, kasan: Silence Kasan warning in check_stack of stack_tracer
2016-02-19 12:36:44 -05:00
trace_stat.c
kernel/...: convert pr_warning to pr_warn
2016-03-22 15:36:02 -07:00
trace_stat.h
trace_syscalls.c
tracing/syscalls: fix multiline in error message text
2016-09-29 10:25:23 +02:00
trace_uprobe.c
tracing/uprobe_event: Fix strncpy corner case
2018-05-16 10:08:44 +02:00
tracing_map.c
tracing: Fix kmemleak in tracing_map_array_free()
2017-08-30 10:21:49 +02:00
tracing_map.h
tracing: Update some tracing_map constants and comments
2016-04-19 12:16:06 -04:00