Masami Hiramatsu 4dd537aca2 tracing: uprobes: Re-enable $comm support for uprobe events ... Since commit 533059281e ("tracing: probeevent: Introduce new argument fetching code") dropped the $comm support from uprobe events, this re-enables it. For $comm support, uses strlcpy() instead of strncpy_from_user() to copy current task's comm. Because it is in the kernel space, strncpy_from_user() always fails to copy the comm. This also uses strlen() instead of strnlen_user() to measure the length of the comm. Note that this uses -ECOMM as a token value to fetch the comm string. If the user-space pointer points -ECOMM, it will be translated to task->comm. Link: http://lkml.kernel.org/r/155723734162.9149.4042756162201097965.stgit@devnote2 Fixes: 533059281e ("tracing: probeevent: Introduce new argument fetching code") Reported-by: Andreas Ziegler <andreas.ziegler@fau.de> Acked-by: Andreas Ziegler <andreas.ziegler@fau.de> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>		2019-05-08 12:15:11 -04:00
..
blktrace.c	blkcg: annotate implicit fall through	2019-03-13 14:31:12 -06:00
bpf_trace.c	Merge branch 'linus' into perf/core, to pick up fixes	2019-02-28 08:27:17 +01:00
fgraph.c	tracing: Fix ftrace_graph_get_ret_stack() to use task and not current	2018-12-22 08:21:03 -05:00
ftrace_internal.h	ftrace: Create new ftrace_internal.h header	2018-12-08 20:54:06 -05:00
ftrace.c	ftrace: Do not process STUB functions in ftrace_ops_list_func()	2019-04-11 11:46:13 -04:00
Kconfig	kbuild: compute false-positive -Wmaybe-uninitialized cases in Kconfig	2019-02-27 21:43:20 +09:00
Makefile	tracing: Add unified dynamic event framework	2018-12-08 20:54:09 -05:00
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	tracing: Use trace_clock_local() for looping in preemptirq_delay_test.c	2018-10-17 15:35:33 -04:00
ring_buffer_benchmark.c	tracing: Add SPDX License format tags to tracing files	2018-08-16 19:08:06 -04:00
ring_buffer.c	ring-buffer: Fix ring buffer size in rb_write_something()	2019-04-02 18:24:06 -04:00
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
trace_benchmark.c	rcu: Rename cond_resched_rcu_qs() to cond_resched_tasks_rcu_qs()	2018-05-15 10:27:29 -07:00
trace_benchmark.h	tracing: Fix SPDX format headers to use C++ style comments	2018-08-16 19:08:06 -04:00
trace_branch.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace_clock.c	tracing: Add SPDX License format tags to tracing files	2018-08-16 19:08:06 -04:00
trace_dynevent.c	tracing: initialize variable in create_dyn_event()	2019-03-26 08:35:36 -04:00
trace_dynevent.h	tracing: Add unified dynamic event framework	2018-12-08 20:54:09 -05:00
trace_entries.h	tracing: Change the function format to display function names by perf	2019-02-11 14:53:43 -05:00
trace_event_perf.c	tracing/perf: Use strndup_user() instead of buggy open-coded version	2019-02-21 10:35:10 -05:00
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: Have the error logs show up in the proper instances	2019-04-08 09:22:44 -04:00
trace_events_hist.c	tracing: Have the error logs show up in the proper instances	2019-04-08 09:22:44 -04:00
trace_events_trigger.c	tracing: Add trace_array parameter to create_event_filter()	2019-04-08 09:22:28 -04:00
trace_events.c	tracing: Kernel access to Ftrace instances	2019-04-02 18:24:06 -04:00
trace_export.c	tracing: Add trigger file for trace_markers tracefs/ftrace/print	2018-05-29 08:28:53 -04:00
trace_functions_graph.c	tracing: Put a margin between flags and duration for wakeup tracers	2019-02-06 11:56:19 -05:00
trace_functions.c	tracing: Update stack trace skipping for ORC unwinder	2018-01-23 15:57:00 -05:00
trace_hwlat.c	tracing: Add SPDX License format tags to tracing files	2018-08-16 19:08:06 -04:00
trace_irqsoff.c	The biggest change for this release is in the histogram code.	2019-03-11 17:01:32 -07:00
trace_kdb.c	tracing: kdb: Allow ftdump to skip all but the last few entries	2019-05-02 21:32:55 -04:00
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: Use tracing error_log with probe events	2019-04-02 18:24:07 -04:00
trace_mmiotrace.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
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_output.c	tracing: Simplify printf'ing in seq_print_sym	2018-12-22 08:21:06 -05:00
trace_output.h	tracing: Fix SPDX format headers to use C++ style comments	2018-08-16 19:08:06 -04:00
trace_preemptirq.c	kprobes: Prohibit probing on hardirq tracers	2019-02-13 08:16:40 +01:00
trace_printk.c	tracing: Trivia spelling fix containerof() -> container_of()	2018-09-26 12:21:00 +03:00
trace_probe_tmpl.h	tracing: probeevent: Correctly update remaining space in dynamic area	2019-02-11 15:58:30 -05:00
trace_probe.c	tracing: Have the error logs show up in the proper instances	2019-04-08 09:22:44 -04:00
trace_probe.h	tracing: uprobes: Re-enable $comm support for uprobe events	2019-05-08 12:15:11 -04:00
trace_sched_switch.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace_sched_wakeup.c	tracing: Add conditional snapshot	2019-02-20 13:51:06 -05:00
trace_selftest_dynamic.c	ftrace: Mark function tracer test functions noinline/noclone	2018-01-23 15:57:29 -05:00
trace_selftest.c	function_graph: Have selftest also emulate tr->reset() as it did with tr->init()	2019-04-21 19:46:56 -04:00
trace_seq.c	tracing: Add SPDX License format tags to tracing files	2018-08-16 19:08:06 -04:00
trace_stack.c	tracing: Use the return of str_has_prefix() to remove open coded numbers	2018-12-22 22:52:30 -05:00
trace_stat.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace_stat.h	tracing: Fix SPDX format headers to use C++ style comments	2018-08-16 19:08:06 -04:00
trace_syscalls.c	Tracing updates for 4.15:	2017-11-17 14:58:01 -08:00
trace_uprobe.c	tracing: uprobes: Re-enable $comm support for uprobe events	2019-05-08 12:15:11 -04:00
trace.c	tracing: Add trace_total_entries() / trace_total_entries_cpu()	2019-05-02 21:32:31 -04:00
trace.h	tracing: Add trace_total_entries() / trace_total_entries_cpu()	2019-05-02 21:32:31 -04:00
tracing_map.c	tracing: Add SPDX License format tags to tracing files	2018-08-16 19:08:06 -04:00
tracing_map.h	tracing: Fix SPDX format headers to use C++ style comments	2018-08-16 19:08:06 -04:00