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ipmi:ssif: Add check for kstrdup

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[ Upstream commit c5586d0f711e9744d0cade39b0c4a2d116a333ca ]

Add check for the return value of kstrdup() and return the error
if it fails in order to avoid NULL pointer dereference.

Fixes: c4436c9149c5 ("ipmi_ssif: avoid registering duplicate ssif interface")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Message-Id: <20230619092802.35384-1-jiasheng@iscas.ac.cn>
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jiasheng Jiang 2023-06-19 17:28:02 +08:00 committed by Greg Kroah-Hartman
parent 90fddb8789
commit ef0d286989
1 changed files with 5 additions and 0 deletions
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5
drivers/char/ipmi/ipmi_ssif.c
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@ -1609,6 +1609,11 @@ static int ssif_add_infos(struct i2c_client *client)
info->addr_src = SI_ACPI;
info->client = client;
info->adapter_name = kstrdup(client->adapter->name, GFP_KERNEL);
if (!info->adapter_name) {
kfree(info);
return -ENOMEM;
}
info->binfo.addr = client->addr;
list_add_tail(&info->link, &ssif_infos);
return 0;