Masami Hiramatsu (Google) 1540f5d8e8 tracing: fprobe: Fix infinite recursion using preempt_*_notrace() ... commit a3e892ab0f upstream. Since preempt_count_add/del() are tracable functions, it is not allowed to use preempt_disable/enable() in ftrace handlers. Without this fix, probing on `preempt_count_add%return` will cause an infinite recursion of fprobes. To fix this problem, use preempt_disable/enable_notrace() in fprobe_return(). Link: https://lore.kernel.org/all/175374642359.1471729.1054175011228386560.stgit@mhiramat.tok.corp.google.com/ Fixes: 4346ba1604 ("fprobe: Rewrite fprobe on function-graph tracer") Cc: stable@vger.kernel.org Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2025-08-20 18:41:42 +02:00
..
rv	rv: Add #undef TRACE_INCLUDE_FILE	2025-08-20 18:41:10 +02:00
blktrace.c	traceevent/block: Add REQ_ATOMIC flag to block trace events	2025-05-23 09:18:48 -06:00
bpf_trace.c	bpf: Fix error return value in bpf_copy_from_user_dynptr	2025-05-23 13:25:02 -07:00
bpf_trace.h
error_report-traces.c
fgraph.c	ftrace: Show subops in enabled_functions	2025-05-08 09:36:08 -04:00
fprobe.c	tracing: fprobe: Fix infinite recursion using preempt_*_notrace()	2025-08-20 18:41:42 +02:00
ftrace_internal.h
ftrace.c	RISC-V Patches for the 6.16 Merge Window, Part 1	2025-06-06 18:05:18 -07:00
Kconfig	ftrace: Have tracing function args depend on PROBE_EVENTS_BTF_ARGS	2025-04-02 09:50:56 -04:00
kprobe_event_gen_test.c
Makefile
pid_list.c	tracing: Cleanup upper_empty() in pid_list	2025-05-14 11:19:32 -04:00
pid_list.h
power-traces.c	PM: cpufreq: powernv/tracing: Move powernv_throttle trace event	2025-08-15 16:38:50 +02:00
preemptirq_delay_test.c	kernel: trace: preemptirq_delay_test: use offstack cpu mask	2025-08-15 16:39:06 +02:00
rethook.c
ring_buffer_benchmark.c
ring_buffer.c	ring-buffer: Remove ring_buffer_read_prepare_sync()	2025-08-15 16:38:50 +02:00
rpm-traces.c
synth_event_gen_test.c
trace_benchmark.c
trace_benchmark.h
trace_boot.c
trace_branch.c	tracing: branch: Use trace_tracing_is_on_cpu() instead of "disabled" field	2025-05-09 15:19:10 -04:00
trace_btf.c
trace_btf.h
trace_clock.c
trace_dynevent.c	tracing: probes: Fix a possible race in trace_probe_log APIs	2025-05-13 22:23:34 +09:00
trace_dynevent.h	tracing: probes: Fix a possible race in trace_probe_log APIs	2025-05-13 22:23:34 +09:00
trace_entries.h	ftrace: Expose call graph depth as unsigned int	2025-05-08 09:36:08 -04:00
trace_eprobe.c	tracing: add missing trace_probe_log_clear for eprobes	2025-05-10 08:44:50 +09:00
trace_event_perf.c	perf: Remove unnecessary parameter of security check	2025-02-26 14:13:58 -05:00
trace_events_filter_test.h
trace_events_filter.c	tracing: Use queue_rcu_work() to free filters	2025-08-15 16:39:06 +02:00
trace_events_hist.c	tracing: Rename event_trigger_alloc() to trigger_data_alloc()	2025-05-09 15:19:11 -04:00
trace_events_inject.c
trace_events_synth.c	tracing: Do not add length to print format in synthetic events	2025-04-09 11:34:21 -04:00
trace_events_trigger.c	tracing updates for v6.16:	2025-05-29 21:04:36 -07:00
trace_events_user.c	tracing/user_events: Slightly simplify user_seq_show()	2025-03-06 13:35:27 -05:00
trace_events.c	tracing: Add down_write(trace_event_sem) when adding trace event	2025-07-19 13:54:59 -04:00
trace_export.c
trace_fprobe.c	Probes fixes for v6.14:	2025-04-08 12:51:34 -07:00
trace_functions_graph.c	fgraph: Do not enable function_graph tracer when setting funcgraph-args	2025-06-18 07:43:22 -04:00
trace_functions.c	tracing updates for v6.16:	2025-05-29 21:04:36 -07:00
trace_hwlat.c
trace_irqsoff.c	tracing: Use atomic_inc_return() for updating "disabled" counter in irqsoff tracer	2025-05-09 15:19:10 -04:00
trace_kdb.c	ring-buffer: Remove ring_buffer_read_prepare_sync()	2025-08-15 16:38:50 +02:00
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_kprobe.c	tracing: probes: Fix a possible race in trace_probe_log APIs	2025-05-13 22:23:34 +09:00
trace_mmiotrace.c	tracing/mmiotrace: Remove reference to unused per CPU data pointer	2025-05-08 09:36:09 -04:00
trace_nop.c
trace_osnoise.c	tracing/osnoise: Fix crash in timerlat_dump_stack()	2025-07-18 15:51:35 -04:00
trace_output.c	tracing: Show preempt and irq events callsites from the offsets in field print	2025-05-06 11:34:52 -04:00
trace_output.h	ftrace: Add print_function_args()	2025-03-04 11:27:23 -05:00
trace_preemptirq.c	tracing: Fix archs that still call tracepoints without RCU watching	2024-12-05 09:28:58 -05:00
trace_printk.c
trace_probe_kernel.h
trace_probe_tmpl.h	tracing/fprobe: Enable fprobe events with CONFIG_DYNAMIC_FTRACE_WITH_ARGS	2024-12-26 10:50:04 -05:00
trace_probe.c	tracing/probes: Avoid using params uninitialized in parse_btf_arg()	2025-07-16 14:01:54 +09:00
trace_probe.h	tracing: probe-events: Log error for exceeding the number of arguments	2025-03-27 21:19:54 +09:00
trace_recursion_record.c
trace_sched_switch.c	pid: allow pid_max to be set per pid namespace	2024-12-02 11:25:25 +01:00
trace_sched_wakeup.c	tracing: Convert the per CPU "disabled" counter to local from atomic	2025-05-09 15:19:10 -04:00
trace_selftest_dynamic.c
trace_selftest.c	fgraph: Pass ftrace_regs to retfunc	2024-12-26 10:50:03 -05:00
trace_seq.c
trace_stack.c	tracing updates for v6.16:	2025-05-29 21:04:36 -07:00
trace_stat.c	tracing: Switch trace_stat.c code over to use guard()	2024-12-26 10:38:37 -05:00
trace_stat.h
trace_synth.h
trace_syscalls.c
trace_uprobe.c	bpf-next-6.16	2025-05-28 15:52:42 -07:00
trace.c	ring-buffer: Remove ring_buffer_read_prepare_sync()	2025-08-15 16:38:50 +02:00
trace.h	tracing: Allow the top level trace_marker to write into another instances	2025-05-09 15:19:11 -04:00
tracing_map.c	tracing: Fix cmp_entries_dup() to respect sort() comparison rules	2024-12-04 10:38:24 -05:00
tracing_map.h