Randy Dunlap 827172ffa9 tracing: Fix return value of __setup handlers ... commit 1d02b444b8 upstream. __setup() handlers should generally return 1 to indicate that the boot options have been handled. Using invalid option values causes the entire kernel boot option string to be reported as Unknown and added to init's environment strings, polluting it. Unknown kernel command line parameters "BOOT_IMAGE=/boot/bzImage-517rc6 kprobe_event=p,syscall_any,$arg1 trace_options=quiet trace_clock=jiffies", will be passed to user space. Run /sbin/init as init process with arguments: /sbin/init with environment: HOME=/ TERM=linux BOOT_IMAGE=/boot/bzImage-517rc6 kprobe_event=p,syscall_any,$arg1 trace_options=quiet trace_clock=jiffies Return 1 from the __setup() handlers so that init's environment is not polluted with kernel boot options. Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru Link: https://lkml.kernel.org/r/20220303031744.32356-1-rdunlap@infradead.org Cc: stable@vger.kernel.org Fixes: 7bcfaf54f5 ("tracing: Add trace_options kernel command line parameter") Fixes: e1e232ca6b ("tracing: Add trace_clock=<clock> kernel parameter") Fixes: 970988e19e ("tracing/kprobe: Add kprobe_event= boot parameter") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-03-08 19:09:38 +01:00
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blktrace.c	blktrace: Fix uaf in blk_trace access after removing by sysfs	2021-09-30 10:11:05 +02:00
bpf_trace.c	bpf: Remove config check to enable bpf support for branch records	2022-01-27 10:53:54 +01:00
bpf_trace.h
fgraph.c
ftrace_internal.h
ftrace.c	tracing: Have all levels of checks prevent recursion	2021-10-27 09:56:56 +02:00
Kconfig
kprobe_event_gen_test.c
Makefile
power-traces.c
preemptirq_delay_test.c
ring_buffer_benchmark.c
ring_buffer.c	ring-buffer: Protect ring_buffer_reset() from reentrancy	2021-11-18 14:03:49 +01:00
rpm-traces.c
synth_event_gen_test.c
trace_benchmark.c
trace_benchmark.h
trace_boot.c	tracing/boot: Fix a hist trigger dependency for boot time tracing	2021-09-22 12:28:03 +02:00
trace_branch.c
trace_clock.c
trace_dynevent.c
trace_dynevent.h
trace_entries.h
trace_event_perf.c
trace_events_filter_test.h
trace_events_filter.c	tracing: Add ustring operation to filtering string pointers	2022-03-08 19:09:31 +01:00
trace_events_hist.c	tracing/histogram: Fix sorting on old "cpu" value	2022-03-08 19:09:38 +01:00
trace_events_inject.c
trace_events_synth.c
trace_events_trigger.c	tracing: Have traceon and traceoff trigger honor the instance	2022-03-02 11:42:53 +01:00
trace_events.c	tracing: Check pid filtering when creating events	2021-12-01 09:19:09 +01:00
trace_export.c
trace_functions_graph.c
trace_functions.c	tracing: Have all levels of checks prevent recursion	2021-10-27 09:56:56 +02:00
trace_hwlat.c
trace_irqsoff.c
trace_kdb.c
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_kprobe.c	tracing: Fix return value of __setup handlers	2022-03-08 19:09:38 +01:00
trace_mmiotrace.c
trace_nop.c
trace_output.c
trace_output.h
trace_preemptirq.c
trace_printk.c
trace_probe_tmpl.h
trace_probe.c	tracing/probes: Reject events which have the same name of existing one	2021-09-22 12:28:00 +02:00
trace_probe.h	tracing/probes: Reject events which have the same name of existing one	2021-09-22 12:28:00 +02:00
trace_sched_switch.c
trace_sched_wakeup.c
trace_selftest_dynamic.c
trace_selftest.c
trace_seq.c
trace_stack.c
trace_stat.c
trace_stat.h
trace_synth.h	tracing: Synthetic event field_pos is an index not a boolean	2021-07-28 14:35:45 +02:00
trace_syscalls.c
trace_uprobe.c	tracing/uprobe: Fix uprobe_perf_open probes iteration	2021-12-01 09:19:01 +01:00
trace.c	tracing: Fix return value of __setup handlers	2022-03-08 19:09:38 +01:00
trace.h	tracing: Fix pid filtering when triggers are attached	2021-12-01 09:19:01 +01:00
tracing_map.c	tracing: Fix a kmemleak false positive in tracing_map	2021-12-17 10:14:40 +01:00
tracing_map.h