Steven Rostedt (Google) a2d1125ee0 tracing: Have event inject files inc the trace array ref count ...

[ Upstream commit e5c624f027 ]

The event inject files add events for a specific trace array. For an
instance, if the file is opened and the instance is deleted, reading or
writing to the file will cause a use after free.

Up the ref count of the trace_array when a event inject file is opened.

Link: https://lkml.kernel.org/r/20230907024804.292337868@goodmis.org
Link: https://lore.kernel.org/all/1cb3aee2-19af-c472-e265-05176fe9bd84@huawei.com/

Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Zheng Yejian <zhengyejian1@huawei.com>
Fixes: 6c3edaf9fd ("tracing: Introduce trace event injection")
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-10-06 13:18:02 +02:00

..

blktrace.c

trace/blktrace: fix memory leak with using debugfs_lookup()

2023-03-10 09:39:47 +01:00

bpf_trace.c

bpf: Clear the probe_addr for uprobe

2023-09-19 12:22:32 +02:00

bpf_trace.h

bpf: Use dedicated bpf_trace_printk event instead of trace_printk()

2020-07-13 16:55:49 -07:00

error_report-traces.c

tracing: add error_report_end trace point

2021-02-26 09:41:02 -08:00

fgraph.c

tracing: Fix various typos in comments

2021-03-23 14:08:18 -04:00

ftrace_internal.h

x86/ftrace: Have ftrace trampolines turn read-only at the end of system boot up

2020-05-12 18:24:34 -04:00

ftrace.c

ftrace: Fix possible warning on checking all pages used in ftrace_process_locs()

2023-07-23 13:47:56 +02:00

Kconfig

tracing: Fix complicated dependency of CONFIG_TRACER_MAX_TRACE

2023-01-12 11:58:55 +01:00

kprobe_event_gen_test.c

tracing: Fix wrong return in kprobe_event_gen_test.c

2023-04-05 11:24:54 +02:00

Makefile

tracing: Place trace_pid_list logic into abstract functions

2022-07-29 17:25:29 +02:00

pid_list.c

tracing: Place trace_pid_list logic into abstract functions

2022-07-29 17:25:29 +02:00

pid_list.h

tracing: Place trace_pid_list logic into abstract functions

2022-07-29 17:25:29 +02:00

power-traces.c

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

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

preemptirq_delay_test.c

kernel: trace: preemptirq_delay_test: add cpu affinity

2021-02-02 17:02:07 -05:00

ring_buffer_benchmark.c

sched,tracing: Convert to sched_set_fifo()

2020-07-29 11:43:53 +02:00

ring_buffer.c

ring-buffer: Do not swap cpu_buffer during resize process

2023-08-26 14:23:26 +02:00

rpm-traces.c

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

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

synth_event_gen_test.c

tracing: Fix memory leak in test_gen_synth_cmd() and test_empty_synth_event()

2022-11-26 09:24:43 +01:00

trace_benchmark.c

tracing: Fix some typos in comments

2020-11-10 20:39:40 -05:00

trace_benchmark.h

tracing: Fix SPDX format headers to use C++ style comments

2018-08-16 19:08:06 -04:00

trace_boot.c

tracing: Initialize integer variable to prevent garbage return value

2022-06-09 10:23:21 +02:00

trace_branch.c

tracing: Merge irqflags + preempt counter.

2021-02-02 17:02:06 -05:00

trace_clock.c

tracing: Do no increment trace_clock_global() by one

2021-06-18 09:10:00 -04:00

trace_dynevent.c

tracing: Free buffers when a used dynamic event is removed

2022-12-08 11:28:43 +01:00

trace_dynevent.h

tracing: Add DYNAMIC flag for dynamic events

2021-08-18 18:10:32 -04:00

trace_entries.h

trace: Add timerlat tracer

2021-06-25 19:57:24 -04:00

trace_eprobe.c

kernel/trace: Fix cleanup logic of enable_trace_eprobe

2023-07-23 13:47:43 +02:00

trace_event_perf.c

tracing/perf: Fix double put of trace event when init fails

2022-08-25 11:39:57 +02:00

trace_events_filter_test.h

tracing: Fix SPDX format headers to use C++ style comments

2018-08-16 19:08:06 -04:00

trace_events_filter.c

tracing: Add ustring operation to filtering string pointers

2022-03-08 19:12:33 +01:00

trace_events_hist.c

tracing: Allow synthetic events to pass around stacktraces

2023-08-03 10:22:30 +02:00

trace_events_inject.c

tracing: Have event inject files inc the trace array ref count

2023-10-06 13:18:02 +02:00

trace_events_synth.c

tracing: Fix trace_event_raw_event_synth() if else statement

2023-08-03 10:22:46 +02:00

trace_events_trigger.c

tracing: Fix to check event_mutex is held while accessing trigger list

2022-09-15 11:30:02 +02:00

trace_events.c

tracing: Increase trace array ref count on enable and filter files

2023-10-06 13:18:00 +02:00

trace_export.c

tracing: Fix some typos in comments

2020-11-10 20:39:40 -05:00

trace_functions_graph.c

tracing: Disable "other" permission bits in the tracefs files

2021-11-18 19:16:15 +01:00

trace_functions.c

tracing: Add "func_no_repeats" option for function tracing

2021-04-15 14:50:02 -04:00

trace_hwlat.c

tracing: Remove extra space at the end of hwlat_detector/mode

2023-09-19 12:22:48 +02:00

trace_irqsoff.c

tracing: Fix memleak due to race between current_tracer and trace

2023-08-30 16:18:13 +02:00

trace_kdb.c

kdb: Rename members of struct kdbtab_t

2021-07-27 17:05:06 +01:00

trace_kprobe_selftest.c

selftest/ftrace: Move kprobe selftest function to separate compile unit

2018-07-30 18:41:04 -04:00

trace_kprobe_selftest.h

tracing: Fix SPDX format headers to use C++ style comments

2018-08-16 19:08:06 -04:00

trace_kprobe.c

tracing: Move duplicate code of trace_kprobe/eprobe.c into header

2022-10-26 12:34:31 +02:00

trace_mmiotrace.c

tracing: Remove definition of DEBUG in trace_mmiotrace.c

2021-02-02 17:02:07 -05:00

trace_nop.c

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

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

trace_osnoise.c

tracing/osnoise: Fix duration type

2022-12-08 11:28:43 +01:00

trace_output.c

tracing: Make sure trace_printk() can output as soon as it can be used

2023-02-01 08:27:23 +01:00

trace_output.h

ftrace: Add recording of functions that caused recursion

2020-11-06 08:42:26 -05:00

trace_preemptirq.c

tracing: hold caller_addr to hardirq_{enable,disable}_ip

2022-09-20 12:39:43 +02:00

trace_printk.c

tracing: Disable "other" permission bits in the tracefs files

2021-11-18 19:16:15 +01:00

trace_probe_kernel.h

tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails

2023-08-03 10:22:31 +02:00

trace_probe_tmpl.h

tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails

2023-08-03 10:22:31 +02:00

trace_probe.c

Revert "tracing: Add "(fault)" name injection to kernel probes"

2023-08-03 10:22:31 +02:00

trace_probe.h

tracing/probes: Add symstr type for dynamic events

2023-08-03 10:22:30 +02:00

trace_recursion_record.c

tracing: Disable "other" permission bits in the tracefs files

2021-11-18 19:16:15 +01:00

trace_sched_switch.c

tracing: Fix sched switch start/stop refcount racy updates

2020-01-30 09:46:10 -05:00

trace_sched_wakeup.c

tracing: Fix memleak due to race between current_tracer and trace

2023-08-30 16:18:13 +02:00

trace_selftest_dynamic.c

ftrace: Mark function tracer test functions noinline/noclone

2018-01-23 15:57:29 -05:00

trace_selftest.c

tracing: Fix various typos in comments

2021-03-23 14:08:18 -04:00

trace_seq.c

tracing: Fix various typos in comments

2021-03-23 14:08:18 -04:00

trace_stack.c

tracing: Disable "other" permission bits in the tracefs files

2021-11-18 19:16:15 +01:00

trace_stat.c

tracing: Disable "other" permission bits in the tracefs files

2021-11-18 19:16:15 +01:00

trace_stat.h

tracing: Use generic type for comparator function

2019-11-14 13:15:11 -05:00

trace_synth.h

tracing: Allow synthetic events to pass around stacktraces

2023-08-03 10:22:30 +02:00

trace_syscalls.c

tracing: Make tp_printk work on syscall tracepoints

2022-06-14 18:36:14 +02:00

trace_uprobe.c

bpf: Clear the probe_addr for uprobe

2023-09-19 12:22:32 +02:00

trace.c

tracing: Increase trace array ref count on enable and filter files

2023-10-06 13:18:00 +02:00

trace.h

tracing: Increase trace array ref count on enable and filter files

2023-10-06 13:18:00 +02:00

tracing_map.c

tracing: Fix a kmemleak false positive in tracing_map

2021-12-17 10:30:16 +01:00

tracing_map.h

tracing: Fix some typos in comments

2020-11-10 20:39:40 -05:00