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| author | Shaohua Li <shaohua.li@intel.com> | 2010-07-27 10:06:34 +0200 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2010-08-06 18:19:15 +0200 |
| commit | 575570f02761bd680ba5731c1dfd4701062e7fb2 (patch) | |
| tree | 7789ba121ae95af2705fe9053fa1ae9e9fb04a5b /kernel/trace/ftrace.c | |
| parent | perf tools: Fix fallback to cplus_demangle() when bfd_demangle() is not avail... (diff) | |
| download | linux-575570f02761bd680ba5731c1dfd4701062e7fb2.tar.xz linux-575570f02761bd680ba5731c1dfd4701062e7fb2.zip | |
tracing: Fix an unallocated memory access in function_graph
With CONFIG_DEBUG_PAGEALLOC, I observed an unallocated memory access in
function_graph trace. It appears we find a small size entry in ring buffer,
but we access it as a big size entry. The access overflows the page size
and touches an unallocated page.
Cc: <stable@kernel.org>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
LKML-Reference: <1280217994.32400.76.camel@sli10-desk.sh.intel.com>
[ Added a comment to explain the problem - SDR ]
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/ftrace.c')
0 files changed, 0 insertions, 0 deletions