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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2008-10-22 19:14:55 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-27 16:45:46 +0100 |
| commit | f66af459a931f25807e1df7915b2b66bb5978d82 (patch) | |
| tree | bb88917429fe1ea4f6d6e088ead040b25d205a86 /kernel/marker.c | |
| parent | asm-generic: define DIE_OOPS in asm-generic (diff) | |
| download | linux-f66af459a931f25807e1df7915b2b66bb5978d82.tar.xz linux-f66af459a931f25807e1df7915b2b66bb5978d82.zip | |
tracepoint: check if the probe has been registered
Impact: fix kernel crash that can trigger during tracing
If we try to remove a probe that has not been already registered,
the tracepoint_entry_remove_probe() function will dereference a NULL
pointer.
Check the probe before removing it to avoid crashes.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Acked-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/marker.c')
0 files changed, 0 insertions, 0 deletions