From: David S. Miller <[email protected]> ===================================================================== | This is a commit scheduled for the next v2.6.34 longterm release. | | If you see a problem with using this for longterm, please comment.| =====================================================================
commit 96642d42f076101ba98866363d908cab706d156c upstream. In x25_link_free(), we destroy 'nb' before dereferencing 'nb->dev'. Don't do this, because 'nb' might be freed by then. Reported-by: Randy Dunlap <[email protected]> Tested-by: Randy Dunlap <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Paul Gortmaker <[email protected]> --- net/x25/x25_link.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/net/x25/x25_link.c b/net/x25/x25_link.c index b25c646..88048b6 100644 --- a/net/x25/x25_link.c +++ b/net/x25/x25_link.c @@ -392,9 +392,12 @@ void __exit x25_link_free(void) write_lock_bh(&x25_neigh_list_lock); list_for_each_safe(entry, tmp, &x25_neigh_list) { + struct net_device *dev; + nb = list_entry(entry, struct x25_neigh, node); + dev = nb->dev; __x25_remove_neigh(nb); - dev_put(nb->dev); + dev_put(dev); } write_unlock_bh(&x25_neigh_list_lock); } -- 1.7.4.4 _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
