Miroslav Benes d5e47505e0 ftrace: Free the trampoline when ftrace_startup() fails ...

Commit fc0ea795f5 ("ftrace: Add symbols for ftrace trampolines")
missed to remove ops from new ftrace_ops_trampoline_list in
ftrace_startup() if ftrace_hash_ipmodify_enable() fails there. It may
lead to BUG if such ops come from a module which may be removed.

Moreover, the trampoline itself is not freed in this case.

Fix it by calling ftrace_trampoline_free() during the rollback.

Link: https://lkml.kernel.org/r/20200831122631.28057-1-mbenes@suse.cz

Fixes: fc0ea795f5 ("ftrace: Add symbols for ftrace trampolines")
Fixes: f8b8be8a31 ("ftrace, kprobes: Support IPMODIFY flag to find IP modify conflict")
Signed-off-by: Miroslav Benes <mbenes@suse.cz>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

2020-09-18 12:19:08 -04:00

..

blktrace.c

treewide: Use fallthrough pseudo-keyword

2020-08-23 17:36:59 -05:00

bpf_trace.c

bpf: Remove inline from bpf_do_trace_printk

2020-08-06 16:53:17 -07:00

bpf_trace.h

bpf: Use dedicated bpf_trace_printk event instead of trace_printk()

2020-07-13 16:55:49 -07:00

fgraph.c

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ftrace_internal.h

x86/ftrace: Have ftrace trampolines turn read-only at the end of system boot up

2020-05-12 18:24:34 -04:00

ftrace.c

ftrace: Free the trampoline when ftrace_startup() fails

2020-09-18 12:19:08 -04:00

Kconfig

Merge tag 'trace-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2020-06-09 10:06:18 -07:00

kprobe_event_gen_test.c

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Makefile

Merge tag 'kbuild-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

2020-08-09 14:10:26 -07:00

power-traces.c

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preemptirq_delay_test.c

tracing: Wait for preempt irq delay thread to execute

2020-05-11 17:00:34 -04:00

ring_buffer_benchmark.c

sched,tracing: Convert to sched_set_fifo()

2020-07-29 11:43:53 +02:00

ring_buffer.c

Merge tag 'trace-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2020-08-07 18:29:15 -07:00

rpm-traces.c

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synth_event_gen_test.c

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trace_benchmark.c

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trace_benchmark.h

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trace_boot.c

tracing/boottime: Fix kprobe multiple events

2020-06-23 21:51:50 -04:00

trace_branch.c

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trace_clock.c

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trace_dynevent.c

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trace_dynevent.h

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trace_entries.h

tracing: Make ftrace packed events have align of 1

2020-06-16 21:21:02 -04:00

trace_event_perf.c

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trace_events_filter_test.h

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trace_events_filter.c

treewide: Use fallthrough pseudo-keyword

2020-08-23 17:36:59 -05:00

trace_events_hist.c

tracing: Move synthetic events to a separate file

2020-06-01 08:23:22 -04:00

trace_events_inject.c

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trace_events_synth.c

tracing: Move synthetic events to a separate file

2020-06-01 08:23:22 -04:00

trace_events_trigger.c

tracing: Fix event trigger to accept redundant spaces

2020-06-23 21:51:40 -04:00

trace_events.c

tracing: Use trace_sched_process_free() instead of exit() for pid tracing

2020-08-04 20:15:07 -04:00

trace_export.c

tracing: Make ftrace packed events have align of 1

2020-06-16 21:21:02 -04:00

trace_functions_graph.c

ring-buffer: Rename ring_buffer_read() to read_buffer_iter_advance()

2020-03-19 19:11:19 -04:00

trace_functions.c

trace: Fix typo in allocate_ftrace_ops()'s comment

2020-06-16 21:21:02 -04:00

trace_hwlat.c

tracing/hwlat: Honor the tracing_cpumask

2020-07-30 19:35:04 -04:00

trace_irqsoff.c

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trace_kdb.c

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trace_kprobe_selftest.c

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trace_kprobe_selftest.h

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trace_kprobe.c

maccess: rename probe_user_{read,write} to copy_{from,to}_user_nofault

2020-06-17 10:57:41 -07:00

trace_mmiotrace.c

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trace_nop.c

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trace_output.c

tracing: Save one trace_event->type by using __TRACE_LAST_TYPE

2020-07-09 18:14:58 -04:00

trace_output.h

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trace_preemptirq.c

x86/entry: Rename trace_hardirqs_off_prepare()

2020-06-11 15:15:24 +02:00

trace_printk.c

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trace_probe_tmpl.h

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trace_probe.c

tracing/probe: Fix memleak in fetch_op_data operations

2020-06-16 21:21:02 -04:00

trace_probe.h

tracing/probe: Replace zero-length array with flexible-array

2020-06-15 23:08:32 -05:00

trace_sched_switch.c

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trace_sched_wakeup.c

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trace_selftest_dynamic.c

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trace_selftest.c

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trace_seq.c

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trace_stack.c

trace: fix an incorrect __user annotation on stack_trace_sysctl

2020-06-08 10:13:56 -04:00

trace_stat.c

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trace_stat.h

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trace_synth.h

tracing: Move synthetic events to a separate file

2020-06-01 08:23:22 -04:00

trace_syscalls.c

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trace_uprobe.c

tracing/uprobe: Remove dead code in trace_uprobe_register()

2020-08-03 16:16:46 -04:00

trace.c

Merge tag 'trace-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2020-08-07 18:29:15 -07:00

trace.h

ftrace: Fix ftrace_trace_task return value

2020-08-03 16:12:31 -04:00

tracing_map.c

tracing: Convert local functions in tracing_map.c to static

2020-04-22 22:07:26 -04:00

tracing_map.h

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