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netfilter: nf_log regression fix

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commit ca735b3aaa
'netfilter: use a linked list of loggers'
introduced an array of list_head in "struct nf_logger", but
forgot to initialize it in nf_log_register(). This resulted
in oops when calling nf_log_unregister() at module unload time.

Reported-and-tested-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Acked-by: Eric Leblond <eric@inl.fr>
Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Eric Dumazet 2009-04-15 12:16:19 +02:00 • committed by Patrick McHardy
parent 83731671d9
commit b6f0a3652e
1 changed files with 4 additions and 0 deletions
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4
net/netfilter/nf_log.c
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@ -36,10 +36,14 @@ static struct nf_logger *__find_logger(int pf, const char *str_logger)
int nf_log_register(u_int8_t pf, struct nf_logger *logger) int nf_log_register(u_int8_t pf, struct nf_logger *logger)
{ {
const struct nf_logger *llog; const struct nf_logger *llog;
int i;
if (pf >= ARRAY_SIZE(nf_loggers)) if (pf >= ARRAY_SIZE(nf_loggers))
return -EINVAL; return -EINVAL;
for (i = 0; i < ARRAY_SIZE(logger->list); i++)
INIT_LIST_HEAD(&logger->list[i]);
mutex_lock(&nf_log_mutex); mutex_lock(&nf_log_mutex);
if (pf == NFPROTO_UNSPEC) { if (pf == NFPROTO_UNSPEC) {