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| author | Julian Anastasov <ja@ssi.bg> | 2011-08-07 22:20:20 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-08-07 22:20:20 -0700 |
| commit | d547f727df86059104af2234804fdd538e112015 (patch) | |
| tree | be54058b51ae121709242553e4aefde5662f734c /fs/compat_ioctl.c | |
| parent | 025890b4ed433b9c9e0f221bb806d42d049c87fe (diff) | |
| download | linux-d547f727df86059104af2234804fdd538e112015.tar.gz linux-d547f727df86059104af2234804fdd538e112015.tar.bz2 linux-d547f727df86059104af2234804fdd538e112015.zip | |
ipv4: fix the reusing of routing cache entries
compare_keys and ip_route_input_common rely on
rt_oif for distinguishing of input and output routes
with same keys values. But sometimes the input route has
also same hash chain (keyed by iif != 0) with the output
routes (keyed by orig_oif=0). Problem visible if running
with small number of rhash_entries.
Fix them to use rt_route_iif instead. By this way
input route can not be returned to users that request
output route.
The patch fixes the ip_rt_bug errors that were
reported in ip_local_out context, mostly for 255.255.255.255
destinations.
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/compat_ioctl.c')
0 files changed, 0 insertions, 0 deletions