Steven Rostedt (VMware) 21a9c7346e tracing: Fix possible double free on failure of allocating trace buffer ...

commit 4397f04575 upstream.

Jing Xia and Chunyan Zhang reported that on failing to allocate part of the
tracing buffer, memory is freed, but the pointers that point to them are not
initialized back to NULL, and later paths may try to free the freed memory
again. Jing and Chunyan fixed one of the locations that does this, but
missed a spot.

Link: http://lkml.kernel.org/r/20171226071253.8968-1-chunyan.zhang@spreadtrum.com

Fixes: 737223fbca ("tracing: Consolidate buffer allocation code")
Reported-by: Jing Xia <jing.xia@spreadtrum.com>
Reported-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-01-02 20:30:55 +01:00

..

blktrace.c

blktrace: Fix potential deadlock between delete & sysfs ops

2017-09-25 08:56:05 -06:00

bpf_trace.c

bpf: fix corruption on concurrent perf_event_output calls

2017-12-25 14:26:31 +01:00

ftrace.c

ftrace: Fix kmemleak in unregister_ftrace_graph

2017-10-03 10:27:32 -04:00

Kconfig

…

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

power-traces.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

ring_buffer_benchmark.c

ring-buffer: Have ring_buffer_alloc_read_page() return error on offline CPU

2017-08-02 14:23:02 -04:00

ring_buffer.c

ring-buffer: Have ring_buffer_alloc_read_page() return error on offline CPU

2017-08-02 14:23:02 -04:00

rpm-traces.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_benchmark.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_benchmark.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_branch.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_clock.c

…

trace_entries.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_event_perf.c

perf/ftrace: Fix double traces of perf on ftrace:function

2017-08-29 13:29:29 +02:00

trace_events_filter_test.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_events_filter.c

mm: treewide: remove GFP_TEMPORARY allocation flag

2017-09-13 18:53:16 -07:00

trace_events_hist.c

tracing: Exclude 'generic fields' from histograms

2017-12-25 14:26:27 +01:00

trace_events_trigger.c

…

trace_events.c

tracing: Fix clear of RECORDED_TGID flag when disabling trace event

2017-09-05 12:00:09 -04:00

trace_export.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_functions_graph.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_functions.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_hwlat.c

…

trace_irqsoff.c

…

trace_kdb.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_kprobe.c

perf/ftrace: Fix double traces of perf on ftrace:function

2017-08-29 13:29:29 +02:00

trace_mmiotrace.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_nop.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_output.c

sched/tracing: Use common task-state helpers

2017-09-29 11:02:45 +02:00

trace_output.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_printk.c

…

trace_probe.c

…

trace_probe.h

…

trace_sched_switch.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_sched_wakeup.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_selftest_dynamic.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_selftest.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_seq.c

…

trace_stack.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_stat.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_stat.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_syscalls.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_uprobe.c

perf/ftrace: Fix double traces of perf on ftrace:function

2017-08-29 13:29:29 +02:00

trace.c

tracing: Fix possible double free on failure of allocating trace buffer

2018-01-02 20:30:55 +01:00

trace.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

tracing_map.c

tracing: Fix kmemleak in tracing_map_array_free()

2017-08-24 10:05:51 -04:00

tracing_map.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00