linux/kernel/trace
Arnd Bergmann cf4d418e65 tracing: Avoid string overflow
'err' is used as a NUL-terminated string, but using strncpy() with the length
equal to the buffer size may result in lack of the termination:

kernel/trace/trace_events_hist.c: In function 'hist_err_event':
kernel/trace/trace_events_hist.c:396:3: error: 'strncpy' specified bound 256 equals destination size [-Werror=stringop-truncation]
   strncpy(err, var, MAX_FILTER_STR_VAL);

This changes it to use the safer strscpy() instead.

Link: http://lkml.kernel.org/r/20180328140920.2842153-1-arnd@arndb.de

Cc: stable@vger.kernel.org
Fixes: f404da6e1d ("tracing: Add 'last error' error facility for hist triggers")
Acked-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2018-07-03 18:14:39 -04:00
..
blktrace.c
bpf_trace.c
ftrace.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
Kconfig docs: Fix some broken references 2018-06-15 18:10:01 -03:00
Makefile
power-traces.c
ring_buffer_benchmark.c
ring_buffer.c ring-buffer: Fix a bunch of typos in comments 2018-06-04 17:28:19 -04:00
rpm-traces.c
trace_benchmark.c
trace_benchmark.h
trace_branch.c
trace_clock.c
trace_entries.h
trace_event_perf.c
trace_events_filter_test.h
trace_events_filter.c tracing: Check for no filter when processing event filters 2018-06-21 15:12:42 -04:00
trace_events_hist.c tracing: Avoid string overflow 2018-07-03 18:14:39 -04:00
trace_events_trigger.c
trace_events.c
trace_export.c
trace_functions_graph.c
trace_functions.c
trace_hwlat.c
trace_irqsoff.c
trace_kdb.c
trace_kprobe.c
trace_mmiotrace.c
trace_nop.c
trace_output.c
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: Use swap macro in update_max_tr 2018-06-21 15:12:43 -04:00
trace.h
tracing_map.c treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
tracing_map.h