This is a note to let you know that I've just added the patch titled
ipmi:ssif: Fix a memory leak when scanning for an adapter
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ipmi-ssif-fix-a-memory-leak-when-scanning-for-an-ada.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 824fd5970d89253aee53f79228ec0529582d213d
Author: Corey Minyard <minyard@xxxxxxx>
Date: Mon Jun 19 11:43:33 2023 -0500
ipmi:ssif: Fix a memory leak when scanning for an adapter
[ Upstream commit b8d72e32e1453d37ee5c8a219f24e7eeadc471ef ]
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 <minyard@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c
index 0061f2207f318..a1b080dfa9604 100644
--- a/drivers/char/ipmi/ipmi_ssif.c
+++ b/drivers/char/ipmi/ipmi_ssif.c
@@ -1410,7 +1410,7 @@ 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);
