From b8d72e32e1453d37ee5c8a219f24e7eeadc471ef Mon Sep 17 00:00:00 2001 From: Corey Minyard Date: Mon, 19 Jun 2023 11:43:33 -0500 Subject: ipmi:ssif: Fix a memory leak when scanning for an adapter The adapter scan ssif_info_find() sets info->adapter_name if the adapter info came from SMBIOS, as it's not set in that case. However, this function can be called more than once, and it will leak the adapter name if it had already been set. So check for NULL before setting it. Fixes: c4436c9149c5 ("ipmi_ssif: avoid registering duplicate ssif interface") Signed-off-by: Corey Minyard --- drivers/char/ipmi/ipmi_ssif.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/char') diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c index 07cfde579cfb..3d21c39e2060 100644 --- a/drivers/char/ipmi/ipmi_ssif.c +++ b/drivers/char/ipmi/ipmi_ssif.c @@ -1400,7 +1400,7 @@ static struct ssif_addr_info *ssif_info_find(unsigned short addr, restart: list_for_each_entry(info, &ssif_infos, link) { if (info->binfo.addr == addr) { - if (info->addr_src == SI_SMBIOS) + if (info->addr_src == SI_SMBIOS && !info->adapter_name) info->adapter_name = kstrdup(adapter_name, GFP_KERNEL); -- cgit v1.2.3