diff options
| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2011-02-14 14:48:07 +0900 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-02-14 12:09:53 +0100 |
| commit | 0de4b34d466bae571b50f41c7296b85248205e35 (patch) | |
| tree | 43c590d7cec90324bfdcf1cec074a8172547ed18 /kernel/trace/trace_kprobe.c | |
| parent | 40262a71536d0b4a7486b279fa39463cfffabcc2 (diff) | |
tracing/kprobe: Fix NULL pointer deref check
Add NULL check for avoiding NULL pointer deref.
This bug has been introduced by:
1ff511e35ed8: tracing/kprobes: Add bitfield type
which causes a null pointer dereference bug when kprobe-tracer
parses an argument without type.
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: 2nddept-manager@sdl.hitachi.co.jp
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20110214054807.8919.69740.stgit@ltc236.sdl.hitachi.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Reported-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Diffstat (limited to 'kernel/trace/trace_kprobe.c')