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| author | Pavel Emelyanov | 2008-02-24 04:57:02 +0100 |
|---|---|---|
| committer | David S. Miller | 2008-02-24 04:57:02 +0100 |
| commit | bc4bf5f38cf0a623e6a29f52ec80bfcc56a373c6 (patch) | |
| tree | 44c9dab22f5d75d797845b54df07bd6da40bcc7e /include/linux/if_ether.h | |
| parent | [RTNL]: Validate hardware and broadcast address attribute for RTM_NEWLINK (diff) | |
| download | kernel-qcow2-linux-bc4bf5f38cf0a623e6a29f52ec80bfcc56a373c6.tar.gz kernel-qcow2-linux-bc4bf5f38cf0a623e6a29f52ec80bfcc56a373c6.tar.xz kernel-qcow2-linux-bc4bf5f38cf0a623e6a29f52ec80bfcc56a373c6.zip | |
[NEIGH]: Fix race between neighbor lookup and table's hash_rnd update.
The neigh_hash_grow() may update the tbl->hash_rnd value, which
is used in all tbl->hash callbacks to calculate the hashval.
Two lookup routines may race with this, since they call the
->hash callback without the tbl->lock held. Since the hash_rnd
is changed with this lock write-locked moving the calls to ->hash
under this lock read-locked closes this gap.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/if_ether.h')
0 files changed, 0 insertions, 0 deletions