linux/kernel/trace
Steven Rostedt (Red Hat) 1245800c0f tracing: Move mutex to protect against resetting of seq data
The iter->seq can be reset outside the protection of the mutex. So can
reading of user data. Move the mutex up to the beginning of the function.

Fixes: d7350c3f45 ("tracing/core: make the read callbacks reentrants")
Cc: stable@vger.kernel.org # 2.6.30+
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2016-09-25 10:27:08 -04:00
..
blktrace.c Merge branch 'for-4.8/drivers' of git://git.kernel.dk/linux-block 2016-07-26 15:37:51 -07:00
bpf_trace.c bpf: Add bpf_probe_write_user BPF helper to be called in tracers 2016-07-25 18:07:48 -07:00
ftrace.c Three more changes. 2016-05-22 19:40:39 -07:00
Kconfig tracing: Add 'hist' event trigger command 2016-04-19 12:16:14 -04:00
Makefile Makefile: Mute warning for __builtin_return_address(>0) for tracing only 2016-08-02 12:57:48 -04:00
power-traces.c cpufreq: schedutil: New governor based on scheduler utilization data 2016-04-02 01:09:12 +02:00
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: Prevent overflow of size in ring_buffer_resize() 2016-05-13 16:44:20 -04:00
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
trace_branch.c tracing: Remove {start,stop}_branch_trace 2015-10-21 10:10:09 -04:00
trace_clock.c
trace_entries.h
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_filter_test.h
trace_events_filter.c tracing: Use temp buffer when filtering events 2016-05-03 17:59:24 -04:00
trace_events_hist.c tracing: Fix use-after-free in hist_register_trigger() 2016-08-02 15:16:30 -04:00
trace_events_trigger.c tracing: Add support for named triggers 2016-04-19 18:56:00 -04:00
trace_events.c This includes two new updates for the ftrace infrastructure. 2016-05-18 18:55:19 -07:00
trace_export.c tracing: ftrace_event_is_function() can return boolean 2015-11-02 14:28:05 -05:00
trace_functions_graph.c arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections 2016-03-25 16:37:42 -07:00
trace_functions.c tracing: Make tracer_flags use the right set_flag callback 2016-03-08 11:19:08 -05:00
trace_irqsoff.c tracing: Remove redundant reset per-CPU buff in irqsoff tracer 2016-03-18 16:39:11 -04:00
trace_kdb.c
trace_kprobe.c perf: split perf_trace_buf_prepare into alloc and update parts 2016-04-07 21:04:26 -04:00
trace_mmiotrace.c kernel/...: convert pr_warning to pr_warn 2016-03-22 15:36:02 -07:00
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: Record and show NMI state 2016-03-22 18:04:10 -04:00
trace_output.h
trace_printk.c tracing: Handle NULL formats in hold_module_trace_bprintk_format() 2016-06-20 09:46:12 -04:00
trace_probe.c kernel/...: convert pr_warning to pr_warn 2016-03-22 15:36:02 -07:00
trace_probe.h
trace_sched_switch.c
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
trace_seq.c
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 perf: split perf_trace_buf_prepare into alloc and update parts 2016-04-07 21:04:26 -04:00
trace_uprobe.c perf: split perf_trace_buf_prepare into alloc and update parts 2016-04-07 21:04:26 -04:00
trace.c tracing: Move mutex to protect against resetting of seq data 2016-09-25 10:27:08 -04:00
trace.h tracing: Use temp buffer when filtering events 2016-05-03 17:59:24 -04:00
tracing_map.c tracing: Handle tracing_map_alloc_elts() error path correctly 2016-04-26 09:40:30 -04:00
tracing_map.h tracing: Update some tracing_map constants and comments 2016-04-19 12:16:06 -04:00