debug kernel gives:
------------[ cut here ]------------
WARNING: CPU: 3 PID: 265 at net/netfilter/nf_tables_api.c:4780 nf_tables_fill_set_info+0x1c8/0x210 [nf_tables]
Modules linked in: nf_tables
CPU: 3 UID: 0 PID: 265 Comm: nft Not tainted 6.15.0-rc2-virtme #1 PREEMPT(full)
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
RIP: 0010:nf_tables_fill_set_info+0x1c8/0x210 [nf_tables]
... because '%ps' includes the module name, so the output
string is truncated.
Fixes: 2cbe307c6046 ("netfilter: nf_tables: export set count and backend name to userspace")
Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
---
You can squash merge this if you prefer.
net/netfilter/nf_tables_api.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 90e73462fb69..b28f6730e26d 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -4769,7 +4769,7 @@ static noinline_for_stack int
nf_tables_fill_set_info(struct sk_buff *skb, const struct nft_set *set)
{
unsigned int nelems;
- char str[32];
+ char str[40];
int ret;
ret = snprintf(str, sizeof(str), "%ps", set->ops);
--
2.49.0
