Steven Rostedt (Google) 534790fde8 tracing: Have the user copy of synthetic event address use correct context ... commit 4f7969bcd6 upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-11-28 16:56:31 +00:00
..
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
error_report-traces.c
fgraph.c
ftrace_internal.h
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
preemptirq_delay_test.c
ring_buffer_benchmark.c
ring_buffer.c	tracing/perf: Add interrupt_context_level() helper	2023-11-28 16:56:21 +00:00
rpm-traces.c
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
trace_benchmark.h
trace_boot.c	tracing: Initialize integer variable to prevent garbage return value	2022-06-09 10:23:21 +02:00
trace_branch.c
trace_clock.c
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
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: Have the user copy of synthetic event address use correct context	2023-11-28 16:56:31 +00:00
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: relax trace_event_eval_update() execution with cond_resched()	2023-10-25 11:59:00 +02:00
trace_export.c
trace_functions_graph.c	tracing: Disable "other" permission bits in the tracefs files	2021-11-18 19:16:15 +01:00
trace_functions.c
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
trace_kprobe_selftest.h
trace_kprobe.c	tracing/kprobes: Fix the order of argument descriptions	2023-11-20 11:08:30 +01:00
trace_mmiotrace.c
trace_nop.c
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
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
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
trace_selftest.c
trace_seq.c
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
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