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netfilter: nf_log: validate nf_logger_find_get()

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Sanitize nf_logger_find_get() input parameters, no caller in the tree
passes invalid values.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
This commit is contained in:
Pablo Neira Ayuso 2024-01-29 20:24:25 +01:00 committed by Florian Westphal
parent 79578be4d3
commit c47ec2b120
1 changed files with 5 additions and 0 deletions
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5
net/netfilter/nf_log.c
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@ -156,6 +156,11 @@ int nf_logger_find_get(int pf, enum nf_log_type type)
struct nf_logger *logger;
int ret = -ENOENT;
if (pf >= ARRAY_SIZE(loggers))
return -EINVAL;
if (type >= NF_LOG_TYPE_MAX)
return -EINVAL;
if (pf == NFPROTO_INET) {
ret = nf_logger_find_get(NFPROTO_IPV4, type);
if (ret < 0)