[ovs-git] [openvswitch/ovs] 6c793e: oss-fuzz: Use unsigned for left shift in ofctl_par...

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Fri Nov 2 18:31:05 UTC 2018


  Branch: refs/heads/master
  Home:   https://github.com/openvswitch/ovs
  Commit: 6c793e8ee671de9d1bbb347a718b232465eecc76
      https://github.com/openvswitch/ovs/commit/6c793e8ee671de9d1bbb347a718b232465eecc76
  Author: Yifeng Sun <pkusunyifeng at gmail.com>
  Date:   2018-11-02 (Fri, 02 Nov 2018)

  Changed paths:
    M tests/oss-fuzz/ofctl_parse_target.c

  Log Message:
  -----------
  oss-fuzz: Use unsigned for left shift in ofctl_parse_flows__

Left shift int (1 here) can result in a negative value. This is an undefined
behavior according to ISO C99 (6.5.7).

The error message reported by oss-fuzz is:
runtime error: left shift of 1 by 31 places cannot be represented in type 'int'

This patch fixes it by changing signed int to unsigned int.

Reported-at: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11166
Signed-off-by: Yifeng Sun <pkusunyifeng at gmail.com>
Signed-off-by: Ben Pfaff <blp at ovn.org>



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