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| author | Li Wei <lw@cn.fujitsu.com> | 2012-07-29 18:01:30 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-07-30 08:18:31 +0200 |
| commit | 8253947e2cdfb14717c9212b751b7aec9ea9ef5e (patch) | |
| tree | 9089fdfff63ec45eec1cd49d74ca53b3a4096226 /Kbuild | |
| parent | mISDN: Bugfix only few bytes are transfered on a connection (diff) | |
| download | linux-8253947e2cdfb14717c9212b751b7aec9ea9ef5e.tar.xz linux-8253947e2cdfb14717c9212b751b7aec9ea9ef5e.zip | |
ipv6: fix incorrect route 'expires' value passed to userspace
When userspace use RTM_GETROUTE to dump route table, with an already
expired route entry, we always got an 'expires' value(2147157)
calculated base on INT_MAX.
The reason of this problem is in the following satement:
rt->dst.expires - jiffies < INT_MAX
gcc promoted the type of both sides of '<' to unsigned long, thus
a small negative value would be considered greater than INT_MAX.
With the help of Eric Dumazet, do the out of bound checks in
rtnl_put_cacheinfo(), _after_ conversion to clock_t.
Signed-off-by: Li Wei <lw@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Kbuild')
0 files changed, 0 insertions, 0 deletions