Luis Henriques f9797c2f20 ftrace: Fix memory leak in ftrace_graph_release() ... ftrace_hash is being kfree'ed in ftrace_graph_release(), however the ->buckets field is not. This results in a memory leak that is easily captured by kmemleak: unreferenced object 0xffff880038afe000 (size 8192): comm "trace-cmd", pid 238, jiffies 4294916898 (age 9.736s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff815f561e>] kmemleak_alloc+0x4e/0xb0 [<ffffffff8113964d>] __kmalloc+0x12d/0x1a0 [<ffffffff810bf6d1>] alloc_ftrace_hash+0x51/0x80 [<ffffffff810c0523>] __ftrace_graph_open.isra.39.constprop.46+0xa3/0x100 [<ffffffff810c05e8>] ftrace_graph_open+0x68/0xa0 [<ffffffff8114003d>] do_dentry_open.isra.1+0x1bd/0x2d0 [<ffffffff81140df7>] vfs_open+0x47/0x60 [<ffffffff81150f95>] path_openat+0x2a5/0x1020 [<ffffffff81152d6a>] do_filp_open+0x8a/0xf0 [<ffffffff811411df>] do_sys_open+0x12f/0x200 [<ffffffff811412ce>] SyS_open+0x1e/0x20 [<ffffffff815fa6e0>] entry_SYSCALL_64_fastpath+0x13/0x94 [<ffffffffffffffff>] 0xffffffffffffffff Link: http://lkml.kernel.org/r/20170525152038.7661-1-lhenriques@suse.com Cc: stable@vger.kernel.org Fixes: b9b0c831be ("ftrace: Convert graph filter to use hash tables") Signed-off-by: Luis Henriques <lhenriques@suse.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>		2017-05-26 22:35:48 -04:00
..
blktrace.c	blktrace: fix integer parse	2017-05-19 09:21:15 -06:00
bpf_trace.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2017-05-02 16:40:27 -07:00
ftrace.c	ftrace: Fix memory leak in ftrace_graph_release()	2017-05-26 22:35:48 -04:00
Kconfig	New features for this release:	2017-05-03 18:41:21 -07:00
Makefile
power-traces.c
ring_buffer_benchmark.c	ring-buffer: Return reader page back into existing ring buffer	2017-05-01 10:26:40 -04:00
ring_buffer.c	New features for this release:	2017-05-03 18:41:21 -07:00
rpm-traces.c
trace_benchmark.c	tracing: Have the trace_event benchmark thread call cond_resched_rcu_qs()	2017-04-17 15:21:19 -04:00
trace_benchmark.h
trace_branch.c
trace_clock.c
trace_entries.h	trace: make trace_hwlat timestamp y2038 safe	2017-05-08 17:15:15 -07:00
trace_event_perf.c
trace_events_filter_test.h
trace_events_filter.c
trace_events_hist.c
trace_events_trigger.c
trace_events.c	tracing/ftrace: Add a better way to pass data via the probe functions	2017-04-20 22:06:46 -04:00
trace_export.c
trace_functions_graph.c
trace_functions.c	tracing/ftrace: Allow for instances to trigger their own stacktrace probes	2017-04-20 22:06:49 -04:00
trace_hwlat.c	trace: make trace_hwlat timestamp y2038 safe	2017-05-08 17:15:15 -07:00
trace_irqsoff.c
trace_kdb.c
trace_kprobe.c	tracing/kprobes: Enforce kprobes teardown after testing	2017-05-17 21:50:27 -04:00
trace_mmiotrace.c
trace_nop.c
trace_output.c	trace: make trace_hwlat timestamp y2038 safe	2017-05-08 17:15:15 -07:00
trace_output.h
trace_printk.c
trace_probe.c
trace_probe.h
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_syscalls.c
trace_uprobe.c
trace.c	tracing: Make sure RCU is watching before calling a stack trace	2017-05-18 23:57:56 -04:00
trace.h	ftrace: Remove #ifdef from code and add clear_ftrace_function_probes() stub	2017-05-17 21:53:32 -04:00
tracing_map.c
tracing_map.h