Qiujun Huang 7e4eeff7da tracing: Fix out of bounds write in get_trace_buf ... commit c1acb4ac1a upstream. The nesting count of trace_printk allows for 4 levels of nesting. The nesting counter starts at zero and is incremented before being used to retrieve the current context's buffer. But the index to the buffer uses the nesting counter after it was incremented, and not its original number, which in needs to do. Link: https://lkml.kernel.org/r/20201029161905.4269-1-hqjagain@gmail.com Cc: stable@vger.kernel.org Fixes: 3d9622c12c ("tracing: Add barrier to trace_printk() buffer nesting modification") Signed-off-by: Qiujun Huang <hqjagain@gmail.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-11-10 12:35:58 +01:00
..
blktrace.c	blktrace: fix debugfs use after free	2020-11-10 12:35:54 +01:00
bpf_trace.c	bpf: fix nested bpf tracepoints with per-cpu data	2019-07-03 13:14:48 +02:00
ftrace.c	ftrace: Move RCU is watching check after recursion check	2020-10-07 08:00:05 +02:00
Kconfig	Stop the ad-hoc games with -Wno-maybe-initialized	2020-05-20 08:18:45 +02:00
Makefile
power-traces.c
preemptirq_delay_test.c
ring_buffer_benchmark.c
ring_buffer.c	ring-buffer: Fix recursion protection transitions between interrupt context	2020-11-10 12:35:58 +01:00
rpm-traces.c
trace_benchmark.c
trace_benchmark.h
trace_branch.c	Revert "x86/uaccess, ftrace: Fix ftrace_likely_update() vs. SMAP"	2019-07-03 13:14:41 +02:00
trace_clock.c
trace_entries.h	tracing: Set kernel_stack's caller size properly	2020-10-01 13:14:31 +02:00
trace_event_perf.c	tracing: Fix race in perf_trace_buf initialization	2019-10-29 09:20:03 +01:00
trace_events_filter_test.h
trace_events_filter.c	tracing: Have error path in predicate_parse() free its allocated memory	2020-08-05 10:05:59 +02:00
trace_events_hist.c	tracing: fix double free	2020-10-01 13:14:53 +02:00
trace_events_trigger.c	tracing: Fix event trigger to accept redundant spaces	2020-06-30 23:17:17 -04:00
trace_events.c	tracing: Adding NULL checks for trace_array descriptor pointer	2020-10-01 13:14:27 +02:00
trace_export.c
trace_functions_graph.c
trace_functions.c
trace_hwlat.c	tracing/hwlat: Honor the tracing_cpumask	2020-08-21 11:05:33 +02:00
trace_irqsoff.c
trace_kdb.c	tracing: Silence GCC 9 array bounds warning	2019-06-25 11:35:52 +08:00
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_kprobe.c	tracing/kprobes: Fix a double initialization typo	2020-05-14 07:57:16 +02:00
trace_mmiotrace.c
trace_nop.c
trace_output.c
trace_output.h
trace_preemptirq.c	lockdep: fix order in trace_hardirqs_off_caller()	2020-10-01 13:14:50 +02:00
trace_printk.c
trace_probe.c
trace_probe.h
trace_sched_switch.c	tracing: Fix sched switch start/stop refcount racy updates	2020-02-11 04:33:55 -08:00
trace_sched_wakeup.c	kernel/trace: Fix do not unregister tracepoints when register sched_migrate_task fail	2020-01-14 20:06:59 +01:00
trace_selftest_dynamic.c
trace_selftest.c	ftrace: Handle tracing when switching between context	2020-11-10 12:35:58 +01:00
trace_seq.c
trace_stack.c	tracing: Have stack tracer compile when MCOUNT_INSN_SIZE is not defined	2020-01-14 20:06:59 +01:00
trace_stat.c	tracing: Fix very unlikely race of registering two stat tracers	2020-02-24 08:34:39 +01:00
trace_stat.h
trace_syscalls.c
trace_uprobe.c	tracing/uprobes: Fix output for multiple string arguments	2019-02-20 10:25:48 +01:00
trace.c	tracing: Fix out of bounds write in get_trace_buf	2020-11-10 12:35:58 +01:00
trace.h	ftrace: Handle tracing when switching between context	2020-11-10 12:35:58 +01:00
tracing_map.c	tracing: Have the histogram compare functions convert to u64 first	2020-01-09 10:19:02 +01:00
tracing_map.h