Yang Jihong 26c57afef2 tracing: Fix infinite loop in tracing_read_pipe on overflowed print_trace_line ...

commit c1ac03af6ed45d05786c219d102f37eb44880f28 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>

2023-01-07 11:11:49 +01:00

..

rv

rv/monitor: Add __init/__exit annotations to module init/exit funcs

2022-09-26 18:10:51 -04:00

blktrace.c

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

2022-12-31 13:32:26 +01:00

bpf_trace.c

bpf: Fix sample_flags for bpf_perf_event_output

2022-10-17 16:32:06 +02:00

bpf_trace.h

…

error_report-traces.c

…

fgraph.c

…

fprobe.c

tracing/fprobe: Fix to check whether fprobe is registered correctly

2022-11-04 08:50:07 +09:00

ftrace_internal.h

…

ftrace.c

ftrace: Fix null pointer dereference in ftrace_add_mod()

2022-11-17 17:16:44 -05:00

Kconfig

tracing: Fix complicated dependency of CONFIG_TRACER_MAX_TRACE

2023-01-07 11:11:48 +01:00

kprobe_event_gen_test.c

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

2022-11-18 10:15:34 +09:00

Makefile

…

pid_list.c

…

pid_list.h

…

power-traces.c

…

preemptirq_delay_test.c

…

rethook.c

rethook: fix a potential memleak in rethook_alloc()

2022-11-18 10:15:34 +09:00

ring_buffer_benchmark.c

…

ring_buffer.c

ring_buffer: Do not deactivate non-existant pages

2022-11-17 17:10:40 -05:00

rpm-traces.c

…

synth_event_gen_test.c

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

2022-11-17 17:51:38 -05:00

trace_benchmark.c

…

trace_benchmark.h

…

trace_boot.c

…

trace_branch.c

…

trace_clock.c

…

trace_dynevent.c

tracing: Free buffers when a used dynamic event is removed

2022-11-23 19:07:12 -05:00

trace_dynevent.h

…

trace_entries.h

…

trace_eprobe.c

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

2023-01-07 11:11:48 +01:00

trace_event_perf.c

…

trace_events_filter_test.h

…

trace_events_filter.c

…

trace_events_hist.c

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

2023-01-07 11:11:48 +01:00

trace_events_inject.c

…

trace_events_synth.c

tracing: Fix issue of missing one synthetic field

2023-01-07 11:11:48 +01:00

trace_events_trigger.c

…

trace_events_user.c

tracing/user_events: Fix call print_fmt leak

2022-12-31 13:32:41 +01:00

trace_events.c

tracing: Free buffers when a used dynamic event is removed

2022-11-23 19:07:12 -05:00

trace_export.c

…

trace_functions_graph.c

…

trace_functions.c

…

trace_hwlat.c

…

trace_irqsoff.c

…

trace_kdb.c

…

trace_kprobe_selftest.c

…

trace_kprobe_selftest.h

…

trace_kprobe.c

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

2022-10-12 13:50:00 -04:00

trace_mmiotrace.c

…

trace_nop.c

…

trace_osnoise.c

tracing/osnoise: Fix duration type

2022-11-22 18:12:01 -05:00

trace_output.c

…

trace_output.h

…

trace_preemptirq.c

…

trace_printk.c

…

trace_probe_kernel.h

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

2022-10-12 13:50:20 -04:00

trace_probe_tmpl.h

…

trace_probe.c

tracing/probes: Handle system names with hyphens

2023-01-07 11:11:48 +01:00

trace_probe.h

…

trace_recursion_record.c

…

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

…

trace_syscalls.c

tracing: Remove unused __bad_type_size() method

2022-11-17 20:21:06 -05:00

trace_uprobe.c

…

trace.c

tracing: Fix infinite loop in tracing_read_pipe on overflowed print_trace_line

2023-01-07 11:11:49 +01:00

trace.h

tracing/probes: Handle system names with hyphens

2023-01-07 11:11:48 +01:00

tracing_map.c

tracing: Remove unused variable 'dups'

2022-10-03 12:20:31 -04:00

tracing_map.h

…