Kuan-Wei Chiu 896c1557f8 tracing: Fix cmp_entries_dup() to respect sort() comparison rules ... commit e63fbd5f68 upstream. The cmp_entries_dup() function used as the comparator for sort() violated the symmetry and transitivity properties required by the sorting algorithm. Specifically, it returned 1 whenever memcmp() was non-zero, which broke the following expectations: * Symmetry: If x < y, then y > x. * Transitivity: If x < y and y < z, then x < z. These violations could lead to incorrect sorting and failure to correctly identify duplicate elements. Fix the issue by directly returning the result of memcmp(), which adheres to the required comparison properties. Cc: stable@vger.kernel.org Fixes: 08d43a5fa0 ("tracing: Add lock-free tracing_map") Link: https://lore.kernel.org/20241203202228.1274403-1-visitorckw@gmail.com Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-12-14 19:54:32 +01:00
..
rv	rv: Update rv_en(dis)able_monitor doc to match kernel-doc	2024-06-12 11:03:52 +02:00
blktrace.c	trace/blktrace: fix memory leak with using debugfs_lookup()	2023-03-10 09:33:46 +01:00
bpf_trace.c	bpf,perf: Fix perf_event_detach_bpf_prog error handling	2024-11-01 01:56:05 +01:00
bpf_trace.h	bpf: Use dedicated bpf_trace_printk event instead of trace_printk()	2020-07-13 16:55:49 -07:00
error_report-traces.c	tracing: add error_report_end trace point	2021-02-26 09:41:02 -08:00
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_internal.h
ftrace.c	ftrace: Fix regression with module command in stack_trace_filter	2024-12-14 19:54:13 +01:00
Kconfig	tracing: Build event generation tests only as modules	2024-06-27 13:46:18 +02:00
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	trace/pid_list: Change gfp flags in pid_list_fill_irq()	2024-08-03 08:49:34 +02:00
pid_list.h	tracing: Create a sparse bitmask for pid filtering	2021-10-05 17:38:45 -04:00
power-traces.c
preemptirq_delay_test.c	tracing: Add MODULE_DESCRIPTION() to preemptirq_delay_test	2024-06-27 13:46:23 +02:00
rethook.c	rethook: Use __rcu pointer for rethook::handler	2023-12-13 18:39:17 +01:00
ring_buffer_benchmark.c	sched,tracing: Convert to sched_set_fifo()	2020-07-29 11:43:53 +02:00
ring_buffer.c	ring-buffer: Fix a race between readers and resize checks	2024-06-12 11:02:56 +02:00
rpm-traces.c
synth_event_gen_test.c	tracing / synthetic: Disable events after testing in synth_event_gen_test_init()	2024-01-01 12:39:07 +00:00
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	tracing: Merge irqflags + preempt counter.	2021-02-02 17:02:06 -05:00
trace_clock.c	tracing: Do no increment trace_clock_global() by one	2021-06-18 09:10:00 -04:00
trace_dynevent.c	tracing: Free buffers when a used dynamic event is removed	2022-11-23 19:07:12 -05:00
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 13:49:24 +02:00
trace_event_perf.c	trace/trace_event_perf: remove duplicate samples on the first tracepoint event	2024-12-14 19:53:35 +01:00
trace_events_filter_test.h
trace_events_filter.c	tracing: Have trace_event_file have ref counters	2023-11-28 17:07:23 +00:00
trace_events_hist.c	tracing: Fix uaf issue when open the hist or hist_debug file	2024-01-20 11:50:07 +01:00
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/trigger: Fix to return error if failed to alloc snapshot	2024-02-23 09:12:32 +01:00
trace_events_user.c	tracing/user_events: Fix struct arg size match check	2023-07-23 13:49:47 +02:00
trace_events.c	tracing: hide unused ftrace_event_id_fops	2024-04-17 11:18:26 +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_graph.c	tracing: in_irq() cleanup	2021-10-13 18:19:41 -04:00
trace_functions.c	ftrace: disable preemption when recursion locked	2021-10-27 11:21:49 -04:00
trace_hwlat.c	tracing/hwlat: Fix a race during cpuhp processing	2024-10-17 15:22:02 +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	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 symbol counting logic by looking at modules as well	2024-01-05 15:18:40 +01:00
trace_mmiotrace.c	tracing: Remove definition of DEBUG in trace_mmiotrace.c	2021-02-02 17:02:07 -05:00
trace_nop.c
trace_osnoise.c	tracing/timerlat: Fix a race during cpuhp processing	2024-10-17 15:22:02 +02:00
trace_output.c	tracing: Remove precision vsnprintf() check from print event	2024-10-17 15:22:10 +02:00
trace_output.h	ftrace: Add recording of functions that caused recursion	2020-11-06 08:42:26 -05:00
trace_preemptirq.c	tracing: hold caller_addr to hardirq_{enable,disable}_ip	2022-09-06 22:26:00 -04:00
trace_printk.c	tracing: Disable "other" permission bits in the tracefs files	2021-10-08 18:08:43 -04:00
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_probe.c	tracing: Consider the NULL character when validating the event length	2024-11-01 01:56:03 +01:00
trace_probe.h	tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbols	2023-10-25 12:03:16 +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_dynamic.c
trace_selftest.c	tracing: Reset the function filter after completing trampoline/graph selftest	2022-05-25 16:57:37 -04:00
trace_seq.c	tracing: Fix various typos in comments	2021-03-23 14:08:18 -04:00
trace_stack.c	tracing: Disable "other" permission bits in the tracefs files	2021-10-08 18:08:43 -04:00
trace_stat.c	tracing: Disable "other" permission bits in the tracefs files	2021-10-08 18:08:43 -04:00
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	uprobe: avoid out-of-bounds memory access of fetching args	2024-11-17 15:07:21 +01:00
trace.c	tracing: Have saved_cmdlines arrays all in one allocation	2024-10-17 15:22:10 +02:00
trace.h	tracing: Fix uaf issue when open the hist or hist_debug file	2024-01-20 11:50:07 +01:00
tracing_map.c	tracing: Fix cmp_entries_dup() to respect sort() comparison rules	2024-12-14 19:54:32 +01:00
tracing_map.h	tracing: Fix some typos in comments	2020-11-10 20:39:40 -05:00