Beau Belgrave 2de9ee9405 tracing/user_events: Align set_bit() address for all archs ... All architectures should use a long aligned address passed to set_bit(). User processes can pass either a 32-bit or 64-bit sized value to be updated when tracing is enabled when on a 64-bit kernel. Both cases are ensured to be naturally aligned, however, that is not enough. The address must be long aligned without affecting checks on the value within the user process which require different adjustments for the bit for little and big endian CPUs. Add a compat flag to user_event_enabler that indicates when a 32-bit value is being used on a 64-bit kernel. Long align addresses and correct the bit to be used by set_bit() to account for this alignment. Ensure compat flags are copied during forks and used during deletion clears. Link: https://lore.kernel.org/linux-trace-kernel/20230925230829.341-2-beaub@linux.microsoft.com Link: https://lore.kernel.org/linux-trace-kernel/20230914131102.179100-1-cleger@rivosinc.com/ Cc: stable@vger.kernel.org Fixes: 7235759084 ("tracing/user_events: Use remote writes for event enablement") Reported-by: Clément Léger <cleger@rivosinc.com> Suggested-by: Clément Léger <cleger@rivosinc.com> Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>		2023-09-30 16:25:41 -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: Remove unused "event" parameter	2022-11-23 19:08:30 -05:00
ring_buffer.c	ring-buffer: Update "shortest_full" in polling	2023-09-30 16:17:34 -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	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/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	tracing: Free buffers when a used dynamic event is removed	2022-11-23 19:07:12 -05:00
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	tracing/perf: Use strndup_user instead of kzalloc/strncpy_from_user	2022-11-23 19:08:31 -05:00
trace_events_filter_test.h
trace_events_filter.c	tracing/filters: Fix coding style issues	2023-09-01 21:27:23 -04:00
trace_events_hist.c	tracing/histograms: Return an error if we fail to add histogram to hist_vars list	2023-07-23 11:18:52 -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/synthetic: Print out u64 values properly	2023-09-11 18:23:10 -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: Align set_bit() address for all archs	2023-09-30 16:25:41 -04:00
trace_events.c	tracing: relax trace_event_eval_update() execution with cond_resched()	2023-09-30 16:24:55 -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	cpuidle: tracing, preempt: Squash _rcuidle tracing	2023-01-31 15:01:46 +01:00
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	tracing: Use trace_create_file() to simplify creation of tracefs entries	2022-05-26 21:12:52 -04:00
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: Fix kernel-doc warnings in trace_seq.c	2023-07-28 19:59:04 -04:00
trace_stack.c
trace_stat.c
trace_stat.h
trace_synth.h	tracing: Allow synthetic events to pass around stacktraces	2023-01-25 10:31:24 -05:00
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 fixes for 6.6:	2023-09-13 11:30:11 -07:00
trace.h	tracing: Increase trace array ref count on enable and filter files	2023-09-07 16:05:46 -04:00
tracing_map.c	tracing: Remove unused variable 'dups'	2022-10-03 12:20:31 -04:00
tracing_map.h	tracing: Remove unused extern declaration tracing_map_set_field_descr()	2023-07-23 11:08:14 -04:00