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HSI: core: Fix return freed object in hsi_new_client
[ Upstream commit a1ee1c08fc
]
cl is freed on error of calling device_register, but this
object is return later, which will cause uaf issue. Fix it
by return NULL on error.
Signed-off-by: Chengfeng Ye <cyeaa@connect.ust.hk>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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1 changed files with 1 additions and 0 deletions
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@ -115,6 +115,7 @@ struct hsi_client *hsi_new_client(struct hsi_port *port,
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if (device_register(&cl->device) < 0) {
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pr_err("hsi: failed to register client: %s\n", info->name);
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put_device(&cl->device);
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goto err;
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}
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return cl;
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