linux-sg2042/kernel/trace
Steven Rostedt 74bf4076f2 tracing: Prevent kernel oops with corrupted buffer
If the contents of the ftrace ring buffer gets corrupted and the trace
file is read, it could create a kernel oops (usualy just killing the user
task thread). This is caused by the checking of the pid in the buffer.
If the pid is negative, it still references the cmdline cache array,
which could point to an invalid address.

The simple fix is to test for negative PIDs.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-01-25 15:11:53 -05:00
..
Kconfig tracing: Kconfig spelling fixes and cleanups 2009-12-28 10:37:54 +01:00
Makefile Merge branch 'tracing/hw-breakpoints' into perf/core 2009-11-21 14:07:23 +01:00
blktrace.c Add a tracepoint for block request remapping 2009-10-01 21:19:34 +02:00
ftrace.c ftrace: Fix MATCH_END_ONLY function filter 2010-01-14 22:38:03 -05:00
kmemtrace.c kmemtrace: Fix up tracer registration 2009-10-01 11:53:44 +02:00
power-traces.c tracing/power: Remove two exports 2009-12-13 18:37:28 +01:00
ring_buffer.c ring-buffer: Add rb_list_head() wrapper around new reader page next field 2010-01-06 20:40:44 -05:00
ring_buffer_benchmark.c ring-buffer-benchmark: Add parameters to set produce/consumer priorities 2009-11-25 14:14:15 -05:00
trace.c tracing: Prevent kernel oops with corrupted buffer 2010-01-25 15:11:53 -05:00
trace.h Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-12-16 12:02:25 -08:00
trace_boot.c tracing: add filter event logic to special, mmiotrace and boot tracers 2009-09-12 23:34:04 -04:00
trace_branch.c tracing: user local buffer variable for trace branch tracer 2009-10-07 21:53:41 -04:00
trace_clock.c locking: Convert __raw_spin* functions to arch_spin* 2009-12-14 23:55:32 +01:00
trace_entries.h hw-breakpoints: Rewrite the hw-breakpoints layer on top of perf events 2009-11-08 15:34:42 +01:00
trace_event_profile.c tracing: Change event->profile_count to be int type 2009-12-13 18:37:28 +01:00
trace_events.c tracing: Move a printk out of ftrace_raw_reg_event_foo() 2009-12-13 18:37:25 +01:00
trace_events_filter.c tracing/filters: Add comment for match callbacks 2010-01-14 22:38:14 -05:00
trace_export.c tracing: Fix sign fields in ftrace_define_fields_##call() 2009-12-30 10:27:06 -05:00
trace_functions.c tracing: switch function prints from %pf to %ps 2009-09-17 15:53:40 -04:00
trace_functions_graph.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2009-12-14 09:58:24 -08:00
trace_hw_branches.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2009-12-14 09:58:24 -08:00
trace_irqsoff.c tracing: Add stack trace to irqsoff tracer 2009-12-11 13:19:51 -05:00
trace_kprobe.c Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-12-31 11:52:01 -08:00
trace_ksym.c ksym_tracer: Remove trace_stat 2009-12-30 07:50:50 +01:00
trace_mmiotrace.c tracing: add filter event logic to special, mmiotrace and boot tracers 2009-09-12 23:34:04 -04:00
trace_nop.c tracing/ftrace: make nop-tracer use polling wait for events on pipe 2009-03-23 09:22:15 +01:00
trace_output.c tracing: Add full state to trace_seq 2009-12-09 14:05:49 -05:00
trace_output.h tracing: consolidate code between trace_output.c and trace_function_graph.c 2009-09-11 14:24:13 -04:00
trace_printk.c tracing: Remove markers 2009-09-18 21:22:08 +02:00
trace_sched_switch.c tracing: pass around ring buffer instead of tracer 2009-09-04 18:59:39 -04:00
trace_sched_wakeup.c locking: Convert __raw_spin* functions to arch_spin* 2009-12-14 23:55:32 +01:00
trace_selftest.c locking: Convert __raw_spin* functions to arch_spin* 2009-12-14 23:55:32 +01:00
trace_selftest_dynamic.c ftrace: fix dynamic ftrace selftest 2008-05-23 21:13:23 +02:00
trace_stack.c locking: Convert __raw_spin* functions to arch_spin* 2009-12-14 23:55:32 +01:00
trace_stat.c trace_stat: Fix missing entry in stat file 2009-08-17 11:25:09 +02:00
trace_stat.h tracing/stat: Add stat_release() callback 2009-07-10 12:14:05 +02:00
trace_syscalls.c tracing: Move a printk out of ftrace_raw_reg_event_foo() 2009-12-13 18:37:25 +01:00
trace_sysprof.c perf events, x86/stacktrace: Make stack walking optional 2009-12-17 09:56:19 +01:00
trace_workqueue.c tracing/workqueues: Add refcnt to struct cpu_workqueue_stats 2009-07-10 12:14:07 +02:00