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31 lines
1.0 KiB
Diff
31 lines
1.0 KiB
Diff
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From b0576ade3aaf24b376ea1a4406ae138e2a22b0c0 Mon Sep 17 00:00:00 2001
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From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
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Date: Fri, 27 Jan 2023 10:40:06 +0000
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Subject: [PATCH] nvmem: brcm_nvram: Add check for kzalloc
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Add the check for the return value of kzalloc in order to avoid
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NULL pointer dereference.
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Fixes: 6e977eaa8280 ("nvmem: brcm_nvram: parse NVRAM content into NVMEM cells")
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Cc: stable@vger.kernel.org
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Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
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Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
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Link: https://lore.kernel.org/r/20230127104015.23839-2-srinivas.kandagatla@linaro.org
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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---
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drivers/nvmem/brcm_nvram.c | 3 +++
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1 file changed, 3 insertions(+)
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--- a/drivers/nvmem/brcm_nvram.c
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+++ b/drivers/nvmem/brcm_nvram.c
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@@ -97,6 +97,9 @@ static int brcm_nvram_parse(struct brcm_
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len = le32_to_cpu(header.len);
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data = kzalloc(len, GFP_KERNEL);
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+ if (!data)
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+ return -ENOMEM;
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+
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memcpy_fromio(data, priv->base, len);
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data[len - 1] = '\0';
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