Yang Jihong 52c0622e53 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>

2023-01-14 10:16:33 +01:00

..

blktrace.c

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

2023-01-14 10:15:41 +01:00

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

bpf: Use dedicated bpf_trace_printk event instead of trace_printk()

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

fgraph.c

fgraph: Initialize tracing_graph_pause at task creation

2021-02-10 09:29:16 +01:00

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: Fix null pointer dereference in ftrace_add_mod()

2022-11-25 17:45:48 +01:00

Kconfig

tracing/kprobes: Do the notrace functions check without kprobes on ftrace

2021-01-19 18:27:19 +01:00

kprobe_event_gen_test.c

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

2022-11-25 17:45:49 +01:00

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

…

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

ring-buffer: Include dropped pages in counting dirty patches

2022-11-25 17:45:54 +01:00

rpm-traces.c

…

synth_event_gen_test.c

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

2022-11-25 17:45:49 +01:00

trace_benchmark.c

trace: Use pr_warn instead of pr_warning

2019-10-18 15:01:57 +02:00

trace_benchmark.h

tracing: Fix SPDX format headers to use C++ style comments

2018-08-16 19:08:06 -04:00

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

tracing: Make struct ring_buffer less ambiguous

2020-01-13 13:19:38 -05:00

trace_clock.c

tracing: Do no increment trace_clock_global() by one

2021-06-23 14:42:50 +02:00

trace_dynevent.c

tracing: Free buffers when a used dynamic event is removed

2022-12-08 11:23:58 +01:00

trace_dynevent.h

tracing: Remove check_arg() callbacks from dynevent args

2020-02-01 13:09:23 -05:00

trace_entries.h

tracing: Make ftrace packed events have align of 1

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

trace_event_perf.c

Merge branch 'perf/urgent' into perf/core, to pick up fixes

2019-10-28 12:38:26 +01:00

trace_events_filter_test.h

tracing: Fix SPDX format headers to use C++ style comments

2018-08-16 19:08:06 -04:00

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/hist: Fix wrong return value in parse_action_params()

2023-01-14 10:16:33 +01:00

trace_events_inject.c

tracing: Initialize val to zero in parse_entry of inject code

2020-01-02 19:04:57 -05:00

trace_events_synth.c

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

2022-11-25 17:45:49 +01:00

trace_events_trigger.c

tracing: Dump stacktrace trigger to the corresponding instance

2022-04-27 13:53:46 +02:00

trace_events.c

tracing: Free buffers when a used dynamic event is removed

2022-12-08 11:23:58 +01:00

trace_export.c

treewide: Convert macro and uses of __section(foo) to __section("foo")

2020-10-25 14:51:49 -07:00

trace_functions_graph.c

tracing: make tracing_init_dentry() returns an integer instead of a d_entry pointer

2020-09-18 22:17:14 -04:00

trace_functions.c

tracing: Have all levels of checks prevent recursion

2021-10-27 09:56:56 +02:00

trace_hwlat.c

tracing: Remove WARN_ON in start_thread()

2020-11-30 21:43:07 -05:00

trace_irqsoff.c

tracing: Use pause-on-trace with the latency tracers

2021-02-10 09:29:16 +01:00

trace_kdb.c

tracing: Rename trace_buffer to array_buffer

2020-01-13 13:19:38 -05:00

trace_kprobe_selftest.c

selftest/ftrace: Move kprobe selftest function to separate compile unit

2018-07-30 18:41:04 -04:00

trace_kprobe_selftest.h

tracing: Fix SPDX format headers to use C++ style comments

2018-08-16 19:08:06 -04:00

trace_kprobe.c

tracing: Fix return value of __setup handlers

2022-03-08 19:09:38 +01:00

trace_mmiotrace.c

tracing: Make struct ring_buffer less ambiguous

2020-01-13 13:19:38 -05:00

trace_nop.c

…

trace_output.c

tracing: Make the space reserved for the pid wider

2020-09-18 12:42:11 -04:00

trace_output.h

tracing: Fix SPDX format headers to use C++ style comments

2018-08-16 19:08:06 -04:00

trace_preemptirq.c

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

2022-09-23 14:16:58 +02:00

trace_printk.c

Merge tag 'trace-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2020-10-15 15:51:28 -07:00

trace_probe_tmpl.h

tracing/probe: Support user-space dereference

2019-05-25 23:04:42 -04:00

trace_probe.c

tracing/probes: Have kprobes and uprobes use $COMM too

2022-08-25 11:38:23 +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

tracing: Fix sched switch start/stop refcount racy updates

2020-01-30 09:46:10 -05:00

trace_sched_wakeup.c

tracing: Make struct ring_buffer less ambiguous

2020-01-13 13:19:38 -05:00

trace_selftest_dynamic.c

ftrace: Mark function tracer test functions noinline/noclone

2018-01-23 15:57:29 -05:00

trace_selftest.c

tracing: Disable ftrace selftests when any tracer is running

2020-12-30 11:54:28 +01:00

trace_seq.c

tracing: Remove unused TRACE_SEQ_BUF_USED

2020-01-21 18:39:54 -05:00

trace_stack.c

tracing: make tracing_init_dentry() returns an integer instead of a d_entry pointer

2020-09-18 22:17:14 -04:00

trace_stat.c

tracing: make tracing_init_dentry() returns an integer instead of a d_entry pointer

2020-09-18 22:17:14 -04:00

trace_stat.h

tracing: Use generic type for comparator function

2019-11-14 13:15:11 -05:00

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

Merge tag 'trace-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2020-02-06 07:12:11 +00:00

trace_uprobe.c

tracing/uprobe: Fix uprobe_perf_open probes iteration

2021-12-01 09:19:01 +01:00

trace.c

tracing: Fix infinite loop in tracing_read_pipe on overflowed print_trace_line

2023-01-14 10:16:33 +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

tracing: Fix SPDX format headers to use C++ style comments

2018-08-16 19:08:06 -04:00