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authorXi Wang <xi.wang@gmail.com>2012-02-16 11:55:48 -0500
committerAlex Elder <elder@dreamhost.com>2012-03-22 10:47:45 -0500
commit64486697771cbe219fffcb5c8e2ed9ca4fdf086c (patch)
treea623eebb8105ae8e7585c7faaf171729a9cbadbb /net/appletalk
parent810339ec2fae5cbd0164b8acde7fb65652755864 (diff)
libceph: fix overflow check in crush_decode()
The existing overflow check (n > ULONG_MAX / b) didn't work, because n = ULONG_MAX / b would both bypass the check and still overflow the allocation size a + n * b. The correct check should be (n > (ULONG_MAX - a) / b). Signed-off-by: Xi Wang <xi.wang@gmail.com> Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'net/appletalk')
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