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Linus Torvalds e77a6817d4 tracing: Fix buffer overflow in trace event filter 
It was reported that if an trace event was larger than a page
 and was filtered, that it caused memory corruption. The reason
 is that filtered events first go into a buffer to test the filter
 before being written into the ring buffer. Unfortunately,
 this write did not check the size.
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Merge tag 'trace-v5.11-rc7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fix from Steven Rostedt:
 "Fix buffer overflow in trace event filter.

  It was reported that if an trace event was larger than a page and was
  filtered, that it caused memory corruption. The reason is that
  filtered events first go into a buffer to test the filter before being
  written into the ring buffer. Unfortunately, this write did not check
  the size"

* tag 'trace-v5.11-rc7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Check length before giving out the filter buffer
2021-02-12 11:16:17 -08:00
..
blktrace.c
Tracing updates for 5.11
2020-12-17 13:22:17 -08:00
bpf_trace.c
bpf: Unbreak BPF_PROG_TYPE_KPROBE when kprobe is called via do_int3
2021-02-03 15:54:22 +01:00
bpf_trace.h
bpf: Use dedicated bpf_trace_printk event instead of trace_printk()
2020-07-13 16:55:49 -07:00
fgraph.c
fgraph: Initialize tracing_graph_pause at task creation
2021-01-29 15:07:32 -05:00
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
Tracing updates for 5.11
2020-12-17 13:22:17 -08:00
Kconfig
tracing/kprobes: Do the notrace functions check without kprobes on ftrace
2021-01-11 16:09:53 -05:00
kprobe_event_gen_test.c
tracing: Add kprobe event command generation test module
2020-01-30 09:46:28 -05:00
Makefile
ftrace: Add recording of functions that caused recursion
2020-11-06 08:42:26 -05:00
power-traces.c
…
preemptirq_delay_test.c
tracing: Wait for preempt irq delay thread to execute
2020-05-11 17:00:34 -04:00
ring_buffer_benchmark.c
sched,tracing: Convert to sched_set_fifo()
2020-07-29 11:43:53 +02:00
ring_buffer.c
Tracing updates for 5.11
2020-12-17 13:22:17 -08:00
rpm-traces.c
…
synth_event_gen_test.c
tracing: Remove the useless value assignment in test_create_synth_event()
2020-11-13 12:19:52 -05:00
trace_benchmark.c
tracing: Fix some typos in comments
2020-11-10 20:39:40 -05:00
trace_benchmark.h
…
trace_boot.c
tracing: Disable ftrace selftests when any tracer is running
2020-12-14 12:05:03 -05:00
trace_branch.c
tracing: Make struct ring_buffer less ambiguous
2020-01-13 13:19:38 -05:00
trace_clock.c
…
trace_dynevent.c
tracing: Fix some typos in comments
2020-11-10 20:39:40 -05:00
trace_dynevent.h
tracing: Fix some typos in comments
2020-11-10 20:39:40 -05:00
trace_entries.h
tracing: Fix some typos in comments
2020-11-10 20:39:40 -05:00
trace_event_perf.c
ftrace: Have the callbacks receive a struct ftrace_regs instead of pt_regs
2020-11-13 12:14:55 -05:00
trace_events_filter_test.h
…
trace_events_filter.c
tracing: Clean up after filter logic rewriting
2020-11-16 12:32:34 -05:00
trace_events_hist.c
tracing: Fix some typos in comments
2020-11-10 20:39:40 -05:00
trace_events_inject.c
tracing: Initialize val to zero in parse_entry of inject code
2020-01-02 19:04:57 -05:00
trace_events_synth.c
tracing: Fix some typos in comments
2020-11-10 20:39:40 -05:00
trace_events_trigger.c
tracing: Fix event trigger to accept redundant spaces
2020-06-23 21:51:40 -04:00
trace_events.c
tracing: Do not count ftrace events in top level enable output
2021-02-05 15:40:04 -05:00
trace_export.c
tracing: Fix some typos in comments
2020-11-10 20:39:40 -05:00
trace_functions_graph.c
fgraph: Make overruns 4 bytes in graph stack structure
2020-11-10 20:39:36 -05:00
trace_functions.c
ftrace: Have the callbacks receive a struct ftrace_regs instead of pt_regs
2020-11-13 12:14:55 -05:00
trace_hwlat.c
Tracing updates for 5.11
2020-12-17 13:22:17 -08:00
trace_irqsoff.c
tracing: Use pause-on-trace with the latency tracers
2021-01-29 15:35:33 -05:00
trace_kdb.c
tracing: Rename trace_buffer to array_buffer
2020-01-13 13:19:38 -05:00
trace_kprobe_selftest.c
…
trace_kprobe_selftest.h
…
trace_kprobe.c
tracing/kprobe: Fix to support kretprobe events on unloaded modules
2021-01-29 15:39:48 -05:00
trace_mmiotrace.c
tracing: Make struct ring_buffer less ambiguous
2020-01-13 13:19:38 -05:00
trace_nop.c
…
trace_output.c
ftrace: Add recording of functions that caused recursion
2020-11-06 08:42:26 -05:00
trace_output.h
ftrace: Add recording of functions that caused recursion
2020-11-06 08:42:26 -05:00
trace_preemptirq.c
lockdep: fix order in trace_hardirqs_off_caller()
2020-09-14 10:08:07 +02:00
trace_printk.c
Updates for tracing and bootconfig:
2020-10-15 15:51:28 -07:00
trace_probe_tmpl.h
…
trace_probe.c
tracing/probe: Fix memleak in fetch_op_data operations
2020-06-16 21:21:02 -04:00
trace_probe.h
tracing: Move is_good_name() from trace_probe.h to trace.h
2020-10-15 12:01:13 -04:00
trace_recursion_record.c
ftrace: Add recording of functions that caused recursion
2020-11-06 08:42:26 -05:00
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
ftrace: Have the callbacks receive a struct ftrace_regs instead of pt_regs
2020-11-13 12:14:55 -05:00
trace_selftest_dynamic.c
…
trace_selftest.c
tracing: Disable ftrace selftests when any tracer is running
2020-12-14 12:05:03 -05:00
trace_seq.c
tracing: Remove unused TRACE_SEQ_BUF_USED
2020-01-21 18:39:54 -05:00
trace_stack.c
ftrace: Have the callbacks receive a struct ftrace_regs instead of pt_regs
2020-11-13 12:14:55 -05:00
trace_stat.c
tracing: make tracing_init_dentry() returns an integer instead of a d_entry pointer
2020-09-18 22:17:14 -04:00
trace_stat.h
tracing: Use generic type for comparator function
2019-11-14 13:15:11 -05:00
trace_synth.h
tracing: Add support for dynamic strings to synthetic events
2020-10-05 19:32:18 -04:00
trace_syscalls.c
Tracing updates:
2020-02-06 07:12:11 +00:00
trace_uprobe.c
tracing/uprobes: Support perf-style return probe
2020-09-21 21:06:03 -04:00
trace.c
tracing: Check length before giving out the filter buffer
2021-02-11 14:23:37 -05:00
trace.h
tracing: Disable ftrace selftests when any tracer is running
2020-12-14 12:05:03 -05:00
tracing_map.c
tracing: Fix some typos in comments
2020-11-10 20:39:40 -05:00
tracing_map.h
tracing: Fix some typos in comments
2020-11-10 20:39:40 -05:00