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authorShuah Khan <shuahkh@osg.samsung.com>2014-11-11 10:04:13 -0700
committerDavid S. Miller <davem@davemloft.net>2014-11-11 21:43:34 -0500
commitfbf8e7211ac7858d3df4a4203c18da7a58560784 (patch)
tree563432a5328a8ebdfeffce9167a6bd8619ac93c1 /security/yama
parentcaa13a9f6a66f00203bea1ee9fc4446b96dcfe7c (diff)
downloadblackbird-op-linux-fbf8e7211ac7858d3df4a4203c18da7a58560784.tar.gz
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selftests/net: psock_fanout seg faults in sock_fanout_read_ring()
The while loop in sock_fanout_read_ring() checks mmap region bounds after access, causing it to segfault. Fix it to check count before accessing header->tp_status. This problem can be reproduced consistently when the test in run as follows: make -C tools/testing/selftests TARGETS=net run_tests or make run_tests from tools/testing/selftests or make run_test from tools/testing/selftests/net Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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