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| author | Cody Schafer <cody@linux.vnet.ibm.com> | 2012-07-20 05:05:25 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-07-25 18:06:42 +0200 |
| commit | 8696329b7bcf32e69ad12d5975ad1497936d43ec (patch) | |
| tree | 7bf0b93bf0daf91b9b8b9a655230bb6f92b433e1 /block/blk-iopoll.c | |
| parent | tools lib traceevent: Ignore TRACEEVENT-CFLAGS file (diff) | |
| download | linux-8696329b7bcf32e69ad12d5975ad1497936d43ec.tar.xz linux-8696329b7bcf32e69ad12d5975ad1497936d43ec.zip | |
perf annotate: Prevent overflow in size calculation
A large enough symbol size causes an overflow in the size parameter to
the histogram allocation, leading to a segfault in
symbol__inc_addr_samples later on when this histogram is accessed.
In the case of being called via perf-report, this returns back and
gracefully ignores the sample, eventually ignoring the chained return
value of perf_session_deliver_event in flush_sample_queue.
Signed-off-by: Cody Schafer <cody@linux.vnet.ibm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1342753525-4521-1-git-send-email-cody@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'block/blk-iopoll.c')
0 files changed, 0 insertions, 0 deletions