Steven Rostedt (Google) e78fb4eac8 ring-buffer: Do not let subbuf be bigger than write mask ... The data on the subbuffer is measured by a write variable that also contains status flags. The counter is just 20 bits in length. If the subbuffer is bigger than then counter, it will fail. Make sure that the subbuffer can not be set to greater than the counter that keeps track of the data on the subbuffer. Link: https://lore.kernel.org/linux-trace-kernel/20240220095112.77e9cb81@gandalf.local.home Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Fixes: 2808e31ec1 ("ring-buffer: Add interface for configuring trace sub buffer size") Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>		2024-02-21 09:15:23 -05:00
..
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	Revert BPF token-related functionality	2023-12-19 08:23:03 -08:00
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	Probes updates for v6.7:	2023-11-01 16:15:42 -10:00
ftrace.c	tracing: Fix HAVE_DYNAMIC_FTRACE_WITH_REGS ifdef	2024-02-13 11:56:49 -05:00
ftrace_internal.h	tracing: arm64: Avoid missing-prototype warnings	2023-07-12 12:06:04 -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	rethook: Use __rcu pointer for rethook::handler	2023-12-01 14:53:56 +09:00
ring_buffer.c	ring-buffer: Do not let subbuf be bigger than write mask	2024-02-21 09:15:23 -05:00
ring_buffer_benchmark.c	ring-buffer: Read and write to ring buffers with custom sub buffer size	2023-12-20 07:54:56 -05:00
rpm-traces.c
synth_event_gen_test.c	tracing / synthetic: Disable events after testing in synth_event_gen_test_init()	2023-12-21 10:04:45 -05:00
trace.c	tracing: Inform kmemleak of saved_cmdlines allocation	2024-02-14 12:36:34 -05:00
trace.h	ring-buffer: Page size per ring buffer	2023-12-20 07:54:55 -05:00
trace_benchmark.c
trace_benchmark.h
trace_boot.c	tracing: Allow creating instances with specified system events	2023-12-18 23:14:16 -05:00
trace_branch.c
trace_btf.c	tracing/probes: Fix to search structure fields correctly	2024-02-17 21:25:42 +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/eprobe: drop unneeded breaks	2023-10-10 01:03:48 +09:00
trace_event_perf.c
trace_events.c	ring-buffer: Page size per ring buffer	2023-12-20 07:54:55 -05:00
trace_events_filter.c	tracing: Have trace_event_file have ref counters	2023-11-01 23:44:44 -04:00
trace_events_filter_test.h
trace_events_hist.c	tracing histograms: Simplify parse_actions() function	2024-01-08 13:24:56 -05:00
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: Fix trace_string() return value	2024-02-15 11:40:01 -05:00
trace_events_trigger.c	tracing/trigger: Fix to return error if failed to alloc snapshot	2024-01-26 15:10:24 -05:00
trace_events_user.c	iov_iter: replace import_single_range() with import_ubuf()	2023-12-05 11:57:37 +01:00
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: Fix to check tracepoint event and return	2023-11-10 20:06:12 +09:00
trace_functions.c
trace_functions_graph.c	function_graph: Support recording and printing the return value of function	2023-06-20 18:38:37 -04:00
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.c	trace/kprobe: Display the actual notrace function when rejecting a probe	2023-12-17 16:28:54 +09:00
trace_kprobe_selftest.c	tracing: arm64: Avoid missing-prototype warnings	2023-07-12 12:06:04 -04:00
trace_kprobe_selftest.h
trace_mmiotrace.c
trace_nop.c
trace_osnoise.c	tracing/timerlat: Move hrtimer_init to timerlat_fd open()	2024-02-01 11:50:13 -05:00
trace_output.c	tracing: Add size check when printing trace_marker output	2023-12-12 22:07:22 -05:00
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.c	tracing/probes: Fix to set arg size and fmt after setting type from BTF	2024-02-08 23:26:25 +09:00
trace_probe.h	tracing/probes: Fix to show a parse error for bad type for $comm	2024-02-08 23:26:13 +09:00
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_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.c	tracing: Have function_graph selftest call cond_resched()	2023-05-28 21:15:46 -04:00
trace_selftest_dynamic.c
trace_seq.c	trace_seq: Increase the buffer size to almost two pages	2023-12-18 23:14:16 -05:00
trace_stack.c
trace_stat.c
trace_stat.h
trace_synth.h
trace_syscalls.c	bpf: Change syscall_nr type to int in struct syscall_tp_t	2023-10-13 12:39:36 -07:00
trace_uprobe.c	tracing/uprobe: Replace strlcpy() with strscpy()	2023-12-01 10:25:35 -08:00
tracing_map.c	tracing: Ensure visibility when inserting an element into tracing_map	2024-01-22 17:15:40 -05:00
tracing_map.h	tracing: Remove unused extern declaration tracing_map_set_field_descr()	2023-07-23 11:08:14 -04:00