Steven Rostedt (Google) 4f7969bcd6 tracing: Have the user copy of synthetic event address use correct context ... A synthetic event is created by the synthetic event interface that can read both user or kernel address memory. In reality, it reads any arbitrary memory location from within the kernel. If the address space is in USER (where CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE is set) then it uses strncpy_from_user_nofault() to copy strings otherwise it uses strncpy_from_kernel_nofault(). But since both functions use the same variable there's no annotation to what that variable is (ie. __user). This makes sparse complain. Quiet sparse by typecasting the strncpy_from_user_nofault() variable to a __user pointer. Link: https://lore.kernel.org/linux-trace-kernel/20231031151033.73c42e23@gandalf.local.home Cc: stable@vger.kernel.org Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Fixes: 0934ae9977 ("tracing: Fix reading strings from synthetic events"); Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202311010013.fm8WTxa5-lkp@intel.com/ Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>		2023-11-01 23:46:05 -04:00
..
rv	tracing/tools: Updates for 6.4	2023-04-28 16:11:26 -07:00
blktrace.c	block: remove more NULL checks after bdev_get_queue()	2023-02-21 09:23:22 -07:00
bpf_trace.c	bpf: Fix uprobe_multi get_pid_task error path	2023-09-15 10:32:40 -07:00
bpf_trace.h
error_report-traces.c
fgraph.c	tracing: arm64: Avoid missing-prototype warnings	2023-07-12 12:06:04 -04:00
fprobe.c	Probe fixes for 6.5-rc1, the 2nd set:	2023-07-16 12:13:51 -07:00
ftrace_internal.h	tracing: arm64: Avoid missing-prototype warnings	2023-07-12 12:06:04 -04:00
ftrace.c	ftrace: Use LIST_HEAD to initialize clear_hash	2023-09-01 21:18:38 -04:00
Kconfig	Probes updates for v6.5:	2023-06-30 10:44:53 -07:00
kprobe_event_gen_test.c	tracing: Fix wrong return in kprobe_event_gen_test.c	2023-03-19 12:20:48 -04:00
Makefile	tracing/probes: Move finding func-proto API and getting func-param API to trace_btf	2023-08-23 09:39:45 +09:00
pid_list.c
pid_list.h
power-traces.c
preemptirq_delay_test.c
rethook.c	Probes fixes and clean ups for v6.5-rc1:	2023-07-12 12:01:16 -07:00
ring_buffer_benchmark.c
ring_buffer.c	ring_buffer: Use try_cmpxchg instead of cmpxchg in rb_insert_pages	2023-10-03 21:44:38 -04:00
rpm-traces.c
synth_event_gen_test.c	tracing: Always use canonical ftrace path	2023-02-18 14:34:09 -05:00
trace_benchmark.c
trace_benchmark.h
trace_boot.c	tracing/boot: Test strscpy() against less than zero for error	2023-07-05 10:30:49 -04:00
trace_branch.c
trace_btf.c	tracing/probes: Add a function to search a member of a struct/union	2023-08-23 09:40:16 +09:00
trace_btf.h	tracing/probes: Add a function to search a member of a struct/union	2023-08-23 09:40:16 +09:00
trace_clock.c
trace_dynevent.c
trace_dynevent.h
trace_entries.h	tracing: Add back FORTIFY_SOURCE logic to kernel_stack event structure	2023-07-30 18:11:44 -04:00
trace_eprobe.c	tracing/probes: Support BTF argument on module functions	2023-08-23 09:39:15 +09:00
trace_event_perf.c
trace_events_filter_test.h
trace_events_filter.c	tracing: Have trace_event_file have ref counters	2023-11-01 23:44:44 -04:00
trace_events_hist.c	tracing/histograms: Simplify last_cmd_set()	2023-10-23 13:31:14 -04:00
trace_events_inject.c	tracing: Have event inject files inc the trace array ref count	2023-09-07 16:38:54 -04:00
trace_events_synth.c	tracing: Have the user copy of synthetic event address use correct context	2023-11-01 23:46:05 -04:00
trace_events_trigger.c	tracing: Fix kernel-doc warnings in trace_events_trigger.c	2023-07-28 19:59:03 -04:00
trace_events_user.c	tracing/user_events: Allow events to persist for perfmon_capable users	2023-10-03 22:29:43 -04:00
trace_events.c	tracing: Have trace_event_file have ref counters	2023-11-01 23:44:44 -04:00
trace_export.c	tracing: Add back FORTIFY_SOURCE logic to kernel_stack event structure	2023-07-30 18:11:44 -04:00
trace_fprobe.c	tracing/fprobe-event: Assume fprobe is a return event by $retval	2023-08-23 09:41:32 +09:00
trace_functions_graph.c	function_graph: Support recording and printing the return value of function	2023-06-20 18:38:37 -04:00
trace_functions.c
trace_hwlat.c	tracing: Remove extra space at the end of hwlat_detector/mode	2023-09-01 21:00:00 -04:00
trace_irqsoff.c	tracing: Fix memleak due to race between current_tracer and trace	2023-08-17 13:49:37 -04:00
trace_kdb.c
trace_kprobe_selftest.c	tracing: arm64: Avoid missing-prototype warnings	2023-07-12 12:06:04 -04:00
trace_kprobe_selftest.h
trace_kprobe.c	Probes updates for v6.6:	2023-09-02 11:10:50 -07:00
trace_mmiotrace.c
trace_nop.c
trace_osnoise.c	tracing/timerlat: Add user-space interface	2023-06-22 10:39:56 -04:00
trace_output.c	Tracing updates for 6.5:	2023-06-30 10:33:17 -07:00
trace_output.h	tracing: Add "fields" option to show raw trace event fields	2023-03-29 06:52:08 -04:00
trace_preemptirq.c
trace_printk.c
trace_probe_kernel.h	tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails	2023-07-14 17:04:58 +09:00
trace_probe_tmpl.h	tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails	2023-07-14 17:04:58 +09:00
trace_probe.c	tracing/probes: Add string type check with BTF	2023-08-23 09:41:13 +09:00
trace_probe.h	Probes updates for v6.6:	2023-09-02 11:10:50 -07:00
trace_recursion_record.c
trace_sched_switch.c
trace_sched_wakeup.c	tracing: Fix memleak due to race between current_tracer and trace	2023-08-17 13:49:37 -04:00
trace_selftest_dynamic.c
trace_selftest.c	tracing: Have function_graph selftest call cond_resched()	2023-05-28 21:15:46 -04:00
trace_seq.c	tracing: Move readpos from seq_buf to trace_seq	2023-10-20 12:16:10 -04:00
trace_stack.c
trace_stat.c
trace_stat.h
trace_synth.h
trace_syscalls.c	tracing: bpf: use struct trace_entry in struct syscall_tp_t	2023-08-01 10:53:28 -07:00
trace_uprobe.c	Probes updates for v6.6:	2023-09-02 11:10:50 -07:00
trace.c	tracing: Have trace_event_file have ref counters	2023-11-01 23:44:44 -04:00
trace.h	tracing: Have trace_event_file have ref counters	2023-11-01 23:44:44 -04:00
tracing_map.c
tracing_map.h	tracing: Remove unused extern declaration tracing_map_set_field_descr()	2023-07-23 11:08:14 -04:00