From: Charles Han hanchunchao@inspur.com
stable inclusion from stable-v6.6.64 commit 72ea9a7e9e260aa39f9d1c9254cf92adfb05c4f5 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBDHGX CVE: CVE-2024-53154
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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[ Upstream commit 969c765e2b508cca9099d246c010a1e48dcfd089 ]
Add NULL check in applnco_probe, to handle kernel NULL pointer dereference error.
Fixes: 6641057d5dba ("clk: clk-apple-nco: Add driver for Apple NCO") Signed-off-by: Charles Han hanchunchao@inspur.com Link: https://lore.kernel.org/r/20241114072820.3071-1-hanchunchao@inspur.com Reviewed-by: Martin Povišer povik+lin@cutebit.org Signed-off-by: Stephen Boyd sboyd@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org Signed—off-by: Liu Kai liukai284@huawei.com --- drivers/clk/clk-apple-nco.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/clk/clk-apple-nco.c b/drivers/clk/clk-apple-nco.c index 39472a51530a..457a48d48941 100644 --- a/drivers/clk/clk-apple-nco.c +++ b/drivers/clk/clk-apple-nco.c @@ -297,6 +297,9 @@ static int applnco_probe(struct platform_device *pdev) memset(&init, 0, sizeof(init)); init.name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s-%d", np->name, i); + if (!init.name) + return -ENOMEM; + init.ops = &applnco_ops; init.parent_data = &pdata; init.num_parents = 1;