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Message-Id: <1331032975-5303-5-git-send-email-pablo@netfilter.org> Date: Tue, 6 Mar 2012 12:22:53 +0100 From: pablo@...filter.org To: netfilter-devel@...r.kernel.org Cc: davem@...emloft.net, netdev@...r.kernel.org Subject: [PATCH 4/6] netfilter: bridge: fix wrong pointer dereference From: Pablo Neira Ayuso <pablo@...filter.org> In adf7ff8, a invalid dereference was added in ebt_make_names. CC [M] net/bridge/netfilter/ebtables.o net/bridge/netfilter/ebtables.c: In function `ebt_make_names': net/bridge/netfilter/ebtables.c:1371:20: warning: `t' may be used uninitialized in this function [-Wuninitialized] Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org> --- net/bridge/netfilter/ebtables.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c index 15e9575..5fe2ff3 100644 --- a/net/bridge/netfilter/ebtables.c +++ b/net/bridge/netfilter/ebtables.c @@ -1368,7 +1368,6 @@ ebt_make_names(struct ebt_entry *e, const char *base, char __user *ubase) if (e->bitmask == 0) return 0; - strncpy(name, t->u.target->name, sizeof(name)); hlp = ubase + (((char *)e + e->target_offset) - base); t = (struct ebt_entry_target *)(((char *)e) + e->target_offset); @@ -1378,6 +1377,7 @@ ebt_make_names(struct ebt_entry *e, const char *base, char __user *ubase) ret = EBT_WATCHER_ITERATE(e, ebt_make_watchername, base, ubase); if (ret != 0) return ret; + strncpy(name, t->u.target->name, sizeof(name)); if (copy_to_user(hlp, name, EBT_FUNCTION_MAXNAMELEN)) return -EFAULT; return 0; -- 1.7.7.3 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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