guoweikang 19cacabdd5 ftrace: Fix regression with module command in stack_trace_filter ...

commit 45af52e7d3 upstream.

When executing the following command:

    # echo "write*:mod:ext3" > /sys/kernel/tracing/stack_trace_filter

The current mod command causes a null pointer dereference. While commit
0f17976568 ("ftrace: Fix regression with module command in stack_trace_filter")
has addressed part of the issue, it left a corner case unhandled, which still
results in a kernel crash.

Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/20241120052750.275463-1-guoweikang.kernel@gmail.com
Fixes: 04ec7bb642 ("tracing: Have the trace_array hold the list of registered func probes");
Signed-off-by: guoweikang <guoweikang.kernel@gmail.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2024-12-09 10:41:01 +01:00

..

rv

[tree-wide] finally take no_llseek out

2024-09-27 08:18:43 -07:00

blktrace.c

blktrace: convert strncpy() to strscpy_pad()

2024-04-25 21:07:08 -07:00

bpf_trace.c

bpf: Force uprobe bpf program to always return 0

2024-12-05 14:01:56 +01:00

bpf_trace.h

tracing/treewide: Remove second parameter of __assign_str()

2024-05-22 20:14:47 -04:00

error_report-traces.c

…

fgraph.c

fgraph: Change the name of cpuhp state to "fgraph:online"

2024-10-24 23:41:14 -04:00

fprobe.c

…

ftrace_internal.h

function_graph: Make fgraph_update_pid_func() a stub for !DYNAMIC_FTRACE

2024-06-10 18:08:23 -04:00

ftrace.c

ftrace: Fix regression with module command in stack_trace_filter

2024-12-09 10:41:01 +01:00

Kconfig

tracing: Build event generation tests only as modules

2024-06-12 08:43:12 +09:00

kprobe_event_gen_test.c

…

Makefile

…

pid_list.c

trace/pid_list: Change gfp flags in pid_list_fill_irq()

2024-07-15 15:07:14 -04:00

pid_list.h

…

power-traces.c

…

preemptirq_delay_test.c

minmax: make generic MIN() and MAX() macros available everywhere

2024-07-28 15:49:18 -07:00

rethook.c

rethook: honor CONFIG_FTRACE_VALIDATE_RCU_IS_WATCHING in rethook_try_get()

2024-05-01 23:18:48 +09:00

ring_buffer_benchmark.c

…

ring_buffer.c

Revert: "ring-buffer: Do not have boot mapped buffers hook to CPU hotplug"

2024-11-14 10:01:00 -05:00

rpm-traces.c

…

synth_event_gen_test.c

…

trace_benchmark.c

tracing: Improve benchmark test performance by using do_div()

2024-05-13 20:00:57 -04:00

trace_benchmark.h

…

trace_boot.c

…

trace_branch.c

…

trace_btf.c

…

trace_btf.h

…

trace_clock.c

…

trace_dynevent.c

…

trace_dynevent.h

…

trace_entries.h

…

trace_eprobe.c

tracing/probes: Fix MAX_TRACE_ARGS limit handling

2024-10-23 17:24:44 +09:00

trace_event_perf.c

trace/trace_event_perf: remove duplicate samples on the first tracepoint event

2024-12-05 14:02:02 +01:00

trace_events_filter_test.h

…

trace_events_filter.c

…

trace_events_hist.c

tracing: Have format file honor EVENT_FILE_FL_FREED

2024-08-07 18:12:46 -04:00

trace_events_inject.c

tracing: Have format file honor EVENT_FILE_FL_FREED

2024-08-07 18:12:46 -04:00

trace_events_synth.c

…

trace_events_trigger.c

tracing: Have format file honor EVENT_FILE_FL_FREED

2024-08-07 18:12:46 -04:00

trace_events_user.c

sysctl: treewide: constify the ctl_table argument of proc_handlers

2024-07-24 20:59:29 +02:00

trace_events.c

tracing: Use refcount for trace_event_file reference counter

2024-08-07 18:12:46 -04:00

trace_export.c

…

trace_fprobe.c

tracing/probes: Fix MAX_TRACE_ARGS limit handling

2024-10-23 17:24:44 +09:00

trace_functions_graph.c

tracing/fgraph: Have fgraph handle previous boot function addresses

2024-08-15 08:35:48 -04:00

trace_functions.c

ftrace: Hide one more entry in stack trace when ftrace_pid is enabled

2024-06-06 15:22:18 -04:00

trace_hwlat.c

tracing/hwlat: Fix a race during cpuhp processing

2024-10-03 16:43:23 -04:00

trace_irqsoff.c

function_graph: Move set_graph_function tests to shadow stack global var

2024-06-04 10:37:35 -04:00

trace_kdb.c

…

trace_kprobe_selftest.c

…

trace_kprobe_selftest.h

…

trace_kprobe.c

tracing/probes: Fix MAX_TRACE_ARGS limit handling

2024-10-23 17:24:44 +09:00

trace_mmiotrace.c

…

trace_nop.c

…

trace_osnoise.c

tracing/timerlat: Fix a race during cpuhp processing

2024-10-03 16:43:22 -04:00

trace_output.c

tracing: Have trace_printk not use binary prints if boot buffer

2024-08-26 13:54:08 -04:00

trace_output.h

…

trace_preemptirq.c

…

trace_printk.c

…

trace_probe_kernel.h

…

trace_probe_tmpl.h

…

trace_probe.c

tracing: Consider the NULL character when validating the event length

2024-10-23 17:24:47 +09:00

trace_probe.h

tracing/probes: support '%pd' type for print struct dentry's name

2024-05-01 23:18:47 +09:00

trace_recursion_record.c

…

trace_sched_switch.c

…

trace_sched_wakeup.c

sched/rt: Rename realtime_{prio, task}() to rt_or_dl_{prio, task}()

2024-08-07 18:32:38 +02:00

trace_selftest_dynamic.c

…

trace_selftest.c

sched/fair: Fix external p->on_rq users

2024-10-14 09:14:35 +02:00

trace_seq.c

…

trace_stack.c

sysctl: treewide: constify the ctl_table argument of proc_handlers

2024-07-24 20:59:29 +02:00

trace_stat.c

…

trace_stat.h

…

trace_synth.h

…

trace_syscalls.c

bpf: Use fake pt_regs when doing bpf syscall tracepoint tracing

2024-09-11 13:27:27 -07:00

trace_uprobe.c

tracing/probes: Fix MAX_TRACE_ARGS limit handling

2024-10-23 17:24:44 +09:00

trace.c

Merge tag 'trace-ringbuffer-v6.12-rc7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

2024-11-16 08:12:43 -08:00

trace.h

tracing: Add option to set an instance to be the trace_printk destination

2024-08-26 13:54:08 -04:00

tracing_map.c

tracing: Fix overflow in get_free_elt()

2024-08-07 20:23:12 -04:00

tracing_map.h

…