Song Liu 3e9a18e1c3 ftrace: bpf: Fix IPMODIFY + DIRECT in modify_ftrace_direct() ... ftrace_hash_ipmodify_enable() checks IPMODIFY and DIRECT ftrace_ops on the same kernel function. When needed, ftrace_hash_ipmodify_enable() calls ops->ops_func() to prepare the direct ftrace (BPF trampoline) to share the same function as the IPMODIFY ftrace (livepatch). ftrace_hash_ipmodify_enable() is called in register_ftrace_direct() path, but not called in modify_ftrace_direct() path. As a result, the following operations will break livepatch: 1. Load livepatch to a kernel function; 2. Attach fentry program to the kernel function; 3. Attach fexit program to the kernel function. After 3, the kernel function being used will not be the livepatched version, but the original version. Fix this by adding __ftrace_hash_update_ipmodify() to __modify_ftrace_direct() and adjust some logic around the call. Signed-off-by: Song Liu <song@kernel.org> Reviewed-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20251027175023.1521602-3-song@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>		2025-11-03 17:22:06 -08:00
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rv	rv: Make rtapp/pagefault monitor depends on CONFIG_MMU	2025-10-20 12:47:40 +02:00
Kconfig	tracing changes for 6.17	2025-08-01 10:29:36 -07:00
Makefile	tracing: Have eprobes have their own config option	2025-07-30 10:38:43 -04:00
blktrace.c	Significant patch series in this pull request:	2025-08-03 16:23:09 -07:00
bpf_trace.c	file->f_path constification	2025-10-03 16:32:36 -07:00
bpf_trace.h	…
error_report-traces.c	…
fgraph.c	tracing: fgraph: Protect return handler from recursion loop	2025-09-27 09:04:05 -04:00
fprobe.c	tracing: fprobe: Fix to remove recorded module addresses from filter	2025-09-24 23:18:26 +09:00
ftrace.c	ftrace: bpf: Fix IPMODIFY + DIRECT in modify_ftrace_direct()	2025-11-03 17:22:06 -08:00
ftrace_internal.h	…
kprobe_event_gen_test.c	…
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	2025-07-21 16:40:56 -04:00
preemptirq_delay_test.c	kernel: trace: preemptirq_delay_test: use offstack cpu mask	2025-07-08 18:17:38 -04:00
rethook.c	…
ring_buffer.c	ring buffer: Propagate __rb_map_vma return value to caller	2025-10-08 21:48:58 -04:00
ring_buffer_benchmark.c	…
rpm-traces.c	…
synth_event_gen_test.c	…
trace.c	tracing fixes for v6.18:	2025-10-11 16:06:04 -07:00
trace.h	tracing: Replace syscall RCU pointer assignment with READ/WRITE_ONCE()	2025-09-23 09:29:29 -04:00
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: dynevent: Add a missing lockdown check on dynevent	2025-09-25 00:22:46 +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: Have eprobes handle arrays	2025-07-24 22:57:32 +09:00
trace_event_perf.c	…
trace_events.c	tracing: Fix lock imbalance in s_start() memory allocation failure path	2025-10-03 12:13:12 -04:00
trace_events_filter.c	tracing changes for 6.17	2025-08-01 10:29:36 -07:00
trace_events_filter_test.h	…
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: Add guard(ring_buffer_nest)	2025-08-01 16:49:15 -04:00
trace_events_trigger.c	tracing updates for v6.16:	2025-05-29 21:04:36 -07:00
trace_events_user.c	tracing updates for v6.18:	2025-10-05 09:43:36 -07:00
trace_export.c	…
trace_fprobe.c	tracing: Fix race condition in kprobe initialization causing NULL pointer dereference	2025-10-02 08:05:01 +09:00
trace_functions.c	tracing updates for v6.16:	2025-05-29 21:04:36 -07:00
trace_functions_graph.c	fgraph: Copy args in intermediate storage with entry	2025-08-22 17:32:35 -04:00
trace_hwlat.c	tracing: Replace opencoded cpumask_next_wrap() in move_to_next_cpu()	2025-07-08 18:17:29 -04:00
trace_irqsoff.c	tracing: Fix irqoff tracers on failure of acquiring calltime	2025-10-08 12:10:44 -04:00
trace_kdb.c	ring-buffer: Remove ring_buffer_read_prepare_sync()	2025-07-22 20:01:41 -04:00
trace_kprobe.c	tracing: Fix race condition in kprobe initialization causing NULL pointer dereference	2025-10-02 08:05:01 +09:00
trace_kprobe_selftest.c	…
trace_kprobe_selftest.h	…
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 clean up and fixes for v6.18:	2025-10-09 12:18:22 -07:00
trace_output.c	tracing: Have unsigned int function args displayed as hexadecimal	2025-08-01 19:14:51 -04:00
trace_output.h	…
trace_preemptirq.c	…
trace_printk.c	…
trace_probe.c	Probes updates for v6.17:	2025-07-30 15:38:01 -07:00
trace_probe.h	tracing: Fix race condition in kprobe initialization causing NULL pointer dereference	2025-10-02 08:05:01 +09:00
trace_probe_kernel.h	…
trace_probe_tmpl.h	…
trace_recursion_record.c	…
trace_sched_switch.c	tracing: Ensure optimized hashing works	2025-09-30 17:27:58 -04:00
trace_sched_wakeup.c	tracing: Fix wakeup tracers on failure of acquiring calltime	2025-10-08 12:10:26 -04:00
trace_selftest.c	…
trace_selftest_dynamic.c	…
trace_seq.c	…
trace_stack.c	tracing updates for v6.16:	2025-05-29 21:04:36 -07:00
trace_stat.c	…
trace_stat.h	…
trace_synth.h	…
trace_syscalls.c	tracing: Have syscall trace events show "0x" for values greater than 10	2025-09-23 09:29:29 -04:00
trace_uprobe.c	tracing: Fix race condition in kprobe initialization causing NULL pointer dereference	2025-10-02 08:05:01 +09:00
tracing_map.c	tracing: Use vmalloc_array() to improve code	2025-09-23 09:31:58 -04:00
tracing_map.h	…