diff options
| author | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2017-01-07 19:57:46 +0200 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2017-02-08 17:54:21 +0200 |
| commit | 43d59a4ce78b6460b32076ec7ac821fd8678cdc2 (patch) | |
| tree | 6061d611ccaef768e4ed25b0e12f7792775858c1 /tools/perf/util/callchain.h | |
| parent | 1aa0ec5cdf60b23dfc152f0e9e205f58b0a546b2 (diff) | |
iwlwifi: mvm: don't call << operator with a negative value
In https://bugzilla.kernel.org/show_bug.cgi?id=177341 Bob
reported a UBSAN WARNING on rs.c in iwldvm.
Fix the same bug in iwlmvm.
This because
i = index - 1;
for (mask = (1 << i); i >= 0; i--, mask >>= 1)
is unsafe: i could be negative and hence we can call <<
on a negative value.
This bug doesn't have any real impact since the condition
of the for loop will prevent any usage of mask.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=177341
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'tools/perf/util/callchain.h')
0 files changed, 0 insertions, 0 deletions