Yang Jihong 4f5de49d8c tracing: Fix infinite loop in tracing_read_pipe on overflowed print_trace_line ...

commit c1ac03af6e upstream.

print_trace_line may overflow seq_file buffer. If the event is not
consumed, the while loop keeps peeking this event, causing a infinite loop.

Link: https://lkml.kernel.org/r/20221129113009.182425-1-yangjihong1@huawei.com

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: stable@vger.kernel.org
Fixes: 088b1e427d ("ftrace: pipe fixes")
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-01-12 11:58:55 +01:00

..

blktrace.c

blktrace: Fix output non-blktrace event when blk_classic option enabled

2022-12-31 13:14:18 +01:00

bpf_trace.c

…

bpf_trace.h

…

error_report-traces.c

…

fgraph.c

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ftrace_internal.h

…

ftrace.c

ftrace: Fix null pointer dereference in ftrace_add_mod()

2022-11-26 09:24:42 +01:00

Kconfig

tracing: Fix complicated dependency of CONFIG_TRACER_MAX_TRACE

2023-01-12 11:58:55 +01:00

kprobe_event_gen_test.c

tracing: kprobe: Fix potential null-ptr-deref on trace_array in kprobe_event_gen_test_exit()

2022-11-26 09:24:43 +01:00

Makefile

tracing: Place trace_pid_list logic into abstract functions

2022-07-29 17:25:29 +02:00

pid_list.c

tracing: Place trace_pid_list logic into abstract functions

2022-07-29 17:25:29 +02:00

pid_list.h

tracing: Place trace_pid_list logic into abstract functions

2022-07-29 17:25:29 +02:00

power-traces.c

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preemptirq_delay_test.c

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ring_buffer_benchmark.c

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ring_buffer.c

ring-buffer: Include dropped pages in counting dirty patches

2022-11-26 09:24:49 +01:00

rpm-traces.c

…

synth_event_gen_test.c

tracing: Fix memory leak in test_gen_synth_cmd() and test_empty_synth_event()

2022-11-26 09:24:43 +01:00

trace_benchmark.c

…

trace_benchmark.h

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trace_boot.c

tracing: Initialize integer variable to prevent garbage return value

2022-06-09 10:23:21 +02:00

trace_branch.c

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trace_clock.c

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trace_dynevent.c

tracing: Free buffers when a used dynamic event is removed

2022-12-08 11:28:43 +01:00

trace_dynevent.h

…

trace_entries.h

…

trace_eprobe.c

tracing: Fix race where eprobes can be called before the event

2023-01-12 11:58:54 +01:00

trace_event_perf.c

tracing/perf: Fix double put of trace event when init fails

2022-08-25 11:39:57 +02:00

trace_events_filter_test.h

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trace_events_filter.c

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trace_events_hist.c

tracing/hist: Fix wrong return value in parse_action_params()

2023-01-12 11:58:55 +01:00

trace_events_inject.c

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trace_events_synth.c

tracing: Fix wild-memory-access in register_synth_event()

2022-11-26 09:24:43 +01:00

trace_events_trigger.c

tracing: Fix to check event_mutex is held while accessing trigger list

2022-09-15 11:30:02 +02:00

trace_events.c

tracing: Free buffers when a used dynamic event is removed

2022-12-08 11:28:43 +01:00

trace_export.c

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trace_functions_graph.c

…

trace_functions.c

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trace_hwlat.c

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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

tracing: Move duplicate code of trace_kprobe/eprobe.c into header

2022-10-26 12:34:31 +02:00

trace_mmiotrace.c

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trace_nop.c

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trace_osnoise.c

tracing/osnoise: Fix duration type

2022-12-08 11:28:43 +01:00

trace_output.c

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trace_output.h

…

trace_preemptirq.c

tracing: hold caller_addr to hardirq_{enable,disable}_ip

2022-09-20 12:39:43 +02:00

trace_printk.c

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trace_probe_kernel.h

tracing: Add "(fault)" name injection to kernel probes

2022-10-26 12:34:32 +02:00

trace_probe_tmpl.h

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trace_probe.c

tracing/probes: Handle system names with hyphens

2023-01-12 11:58:55 +01:00

trace_probe.h

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trace_recursion_record.c

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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

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trace_stat.c

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trace_stat.h

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trace_synth.h

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trace_syscalls.c

tracing: Make tp_printk work on syscall tracepoints

2022-06-14 18:36:14 +02:00

trace_uprobe.c

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trace.c

tracing: Fix infinite loop in tracing_read_pipe on overflowed print_trace_line

2023-01-12 11:58:55 +01:00

trace.h

tracing/probes: Handle system names with hyphens

2023-01-12 11:58:55 +01:00

tracing_map.c

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tracing_map.h

…