Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Steven Rostedt 9c55cb12c1 tracing: Do not allow llseek to set_ftrace_filter ... Reading the file set_ftrace_filter does three things. 1) shows whether or not filters are set for the function tracer 2) shows what functions are set for the function tracer 3) shows what triggers are set on any functions 3 is independent from 1 and 2. The way this file currently works is that it is a state machine, and as you read it, it may change state. But this assumption breaks when you use lseek() on the file. The state machine gets out of sync and the t_show() may use the wrong pointer and cause a kernel oops. Luckily, this will only kill the app that does the lseek, but the app dies while holding a mutex. This prevents anyone else from using the set_ftrace_filter file (or any other function tracing file for that matter). A real fix for this is to rewrite the code, but that is too much for a -rc release or stable. This patch simply disables llseek on the set_ftrace_filter() file for now, and we can do the proper fix for the next major release. Reported-by: Robert Swiecki <swiecki@google.com> Cc: Chris Wright <chrisw@sous-sol.org> Cc: Tavis Ormandy <taviso@google.com> Cc: Eugene Teo <eugene@redhat.com> Cc: vendor-sec@lst.de Cc: <stable@kernel.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>		2010-09-08 12:08:01 -04:00
..
blktrace.c	block: add secure discard	2010-08-12 08:43:30 -07:00
ftrace.c	tracing: Do not allow llseek to set_ftrace_filter	2010-09-08 12:08:01 -04:00
Kconfig	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2010-08-07 12:42:58 -07:00
Makefile	Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-08-06 09:30:52 -07:00
power-traces.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
ring_buffer.c	Merge branch 'tip/perf/urgent-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into trace/tip/perf/urgent-4	2010-08-16 11:17:30 -04:00
ring_buffer_benchmark.c	ring-buffer: Make benchmark handle missed events	2010-04-27 13:26:58 -04:00
trace.c	Merge branch 'tip/perf/urgent-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into trace/tip/perf/urgent-4	2010-08-16 11:17:30 -04:00
trace.h	Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-08-06 09:30:52 -07:00
trace_branch.c	tracing: Allow events to share their print functions	2010-05-14 14:20:32 -04:00
trace_clock.c	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-08-06 09:39:22 -07:00
trace_entries.h	tracing: Remove special traces	2010-07-20 14:31:07 +02:00
trace_event_perf.c	perf: Use tracepoint_synchronize_unregister() to flush any pending tracepoint call	2010-08-02 01:30:56 +02:00
trace_events.c	Merge branch 'tip/perf/urgent-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into trace/tip/perf/urgent-4	2010-08-16 11:17:30 -04:00
trace_events_filter.c	tracing: Remove test of NULL define_fields callback	2010-06-28 17:12:52 -04:00
trace_export.c	tracing: Remove redundant raw_init callbacks	2010-06-28 17:12:53 -04:00
trace_functions.c	tracing: Remove ftrace_preempt_disable/enable	2010-06-03 19:32:38 -04:00
trace_functions_graph.c	Merge branch 'tip/perf/urgent-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into trace/tip/perf/urgent-4	2010-08-16 11:17:30 -04:00
trace_irqsoff.c	tracing: Shrink max latency ringbuffer if unnecessary	2010-07-21 10:20:17 -04:00
trace_kdb.c	ftrace,kdb: Allow dumping a specific cpu's buffer with ftdump	2010-08-05 09:22:23 -05:00
trace_kprobe.c	tracing/kprobes: unregister_trace_probe needs to be called under mutex	2010-08-04 12:41:23 -03:00
trace_mmiotrace.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
trace_nop.c
trace_output.c	Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/core	2010-07-23 09:10:29 +02:00
trace_output.h	tracing: Allow events to share their print functions	2010-05-14 14:20:32 -04:00
trace_printk.c
trace_sched_switch.c	tracing: Let tracepoints have data passed to tracepoint callbacks	2010-05-14 09:50:34 -04:00
trace_sched_wakeup.c	tracing: Shrink max latency ringbuffer if unnecessary	2010-07-21 10:20:17 -04:00
trace_selftest.c	tracing: Remove special traces	2010-07-20 14:31:07 +02:00
trace_selftest_dynamic.c
trace_stack.c	tracing/trace_stack: Fix stack trace on ppc64	2010-08-25 13:08:48 +02:00
trace_stat.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
trace_stat.h
trace_syscalls.c	tracing: Use a global field list for all syscall exit events	2010-06-28 17:12:44 -04:00
trace_workqueue.c	tracing: Let tracepoints have data passed to tracepoint callbacks	2010-05-14 09:50:34 -04:00