Steven Rostedt (Google) f7ab9dee22 tracing: Have the user copy of synthetic event address use correct context ... commit 4f7969bcd6d33042d62e249b41b5578161e4c868 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 17:07:13 +00:00
..
rv	rv/monitor: Add __init/__exit annotations to module init/exit funcs	2022-09-26 18:10:51 -04:00
blktrace.c	trace/blktrace: fix memory leak with using debugfs_lookup()	2023-03-10 09:33:46 +01:00
bpf_trace.c	fprobe: Pass entry_data to handlers	2023-10-25 12:03:12 +02:00
bpf_trace.h
error_report-traces.c
fgraph.c	arm64 fixes for 5.19-rc1:	2022-06-03 14:05:34 -07:00
fprobe.c	fprobe: Fix to ensure the number of active retprobes is not zero	2023-10-25 12:03:12 +02:00
ftrace.c	ftrace: Fix possible warning on checking all pages used in ftrace_process_locs()	2023-07-23 13:49:44 +02:00
ftrace_internal.h
Kconfig	tracing: Fix complicated dependency of CONFIG_TRACER_MAX_TRACE	2023-01-07 11:11:48 +01:00
kprobe_event_gen_test.c	tracing: Fix wrong return in kprobe_event_gen_test.c	2023-04-06 12:10:41 +02:00
Makefile	rv: Add Runtime Verification (RV) interface	2022-07-30 14:01:28 -04:00
pid_list.c	tracing: Cleanup double word in comment	2022-04-26 17:58:50 -04:00
pid_list.h
power-traces.c
preemptirq_delay_test.c
rethook.c	fprobe: Ensure running fprobe_exit_handler() finished before calling rethook_free()	2023-07-23 13:49:46 +02:00
ring_buffer.c	ring-buffer: Fix bytes info in per_cpu buffer stats	2023-10-10 22:00:36 +02:00
ring_buffer_benchmark.c
rpm-traces.c
synth_event_gen_test.c	tracing: Fix memory leak in test_gen_synth_cmd() and test_empty_synth_event()	2022-11-17 17:51:38 -05:00
trace.c	tracing: Have option files inc the trace array ref count	2023-09-23 11:11:11 +02:00
trace.h	tracing: Increase trace array ref count on enable and filter files	2023-09-23 11:11:11 +02:00
trace_benchmark.c	tracing: Add numeric delta time to the trace event benchmark	2022-09-26 13:01:09 -04:00
trace_benchmark.h	tracing: Add numeric delta time to the trace event benchmark	2022-09-26 13:01:09 -04:00
trace_boot.c	tracing: Initialize integer variable to prevent garbage return value	2022-05-26 21:13:00 -04:00
trace_branch.c
trace_clock.c
trace_dynevent.c	tracing: Free buffers when a used dynamic event is removed	2022-11-23 19:07:12 -05:00
trace_dynevent.h
trace_entries.h
trace_eprobe.c	kernel/trace: Fix cleanup logic of enable_trace_eprobe	2023-07-23 13:49:24 +02:00
trace_event_perf.c	tracing/perf: Fix double put of trace event when init fails	2022-08-21 15:56:07 -04:00
trace_events.c	tracing: relax trace_event_eval_update() execution with cond_resched()	2023-10-25 12:03:10 +02:00
trace_events_filter.c	tracing/filter: Call filter predicate functions directly via a switch statement	2022-09-26 13:01:10 -04:00
trace_events_filter_test.h
trace_events_hist.c	tracing: Allow synthetic events to pass around stacktraces	2023-08-03 10:23:55 +02:00
trace_events_inject.c	tracing: Have event inject files inc the trace array ref count	2023-09-23 11:11:11 +02:00
trace_events_synth.c	tracing: Have the user copy of synthetic event address use correct context	2023-11-28 17:07:13 +00:00
trace_events_trigger.c	tracing: Fix to check event_mutex is held while accessing trigger list	2022-09-06 22:26:00 -04:00
trace_events_user.c	tracing/user_events: Fix struct arg size match check	2023-07-23 13:49:47 +02:00
trace_export.c	tracing: Fix TASK_COMM_LEN in trace event format file	2023-02-14 19:11:54 +01:00
trace_functions.c	ftrace: disable preemption when recursion locked	2021-10-27 11:21:49 -04:00
trace_functions_graph.c	tracing: in_irq() cleanup	2021-10-13 18:19:41 -04:00
trace_hwlat.c	tracing: Remove extra space at the end of hwlat_detector/mode	2023-09-13 09:42:57 +02:00
trace_irqsoff.c	tracing: Fix memleak due to race between current_tracer and trace	2023-08-30 16:11:00 +02:00
trace_kdb.c
trace_kprobe.c	tracing/kprobes: Fix the order of argument descriptions	2023-11-20 11:52:18 +01:00
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_mmiotrace.c
trace_nop.c
trace_osnoise.c	tracing/timerlat: Always wakeup the timerlat thread	2023-06-09 10:34:24 +02:00
trace_output.c	tracing: Make sure trace_printk() can output as soon as it can be used	2023-02-01 08:34:37 +01:00
trace_output.h
trace_preemptirq.c	tracing: hold caller_addr to hardirq_{enable,disable}_ip	2022-09-06 22:26:00 -04:00
trace_printk.c
trace_probe.c	Revert "tracing: Add "(fault)" name injection to kernel probes"	2023-08-03 10:23:55 +02:00
trace_probe.h	tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbols	2023-10-25 12:03:16 +02:00
trace_probe_kernel.h	tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails	2023-08-03 10:23:55 +02:00
trace_probe_tmpl.h	tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails	2023-08-03 10:23:55 +02:00
trace_recursion_record.c	tracing: Use trace_create_file() to simplify creation of tracefs entries	2022-05-26 21:12:52 -04:00
trace_sched_switch.c	sched/tracing: Append prev_state to tp args instead	2022-05-12 00:37:11 +02:00
trace_sched_wakeup.c	tracing: Fix memleak due to race between current_tracer and trace	2023-08-30 16:11:00 +02:00
trace_selftest.c	tracing: Reset the function filter after completing trampoline/graph selftest	2022-05-25 16:57:37 -04:00
trace_selftest_dynamic.c
trace_seq.c
trace_stack.c
trace_stat.c
trace_stat.h
trace_synth.h	tracing: Allow synthetic events to pass around stacktraces	2023-08-03 10:23:55 +02:00
trace_syscalls.c	tracing: Remove unused __bad_type_size() method	2022-11-17 20:21:06 -05:00
trace_uprobe.c	bpf: Clear the probe_addr for uprobe	2023-09-13 09:42:30 +02:00
tracing_map.c	tracing: Remove unused variable 'dups'	2022-10-03 12:20:31 -04:00
tracing_map.h