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nvmem: brcm_nvram: Add check for kzalloc

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commit b0576ade3a upstream.

Add the check for the return value of kzalloc in order to avoid
NULL pointer dereference.

Fixes: 6e977eaa82 ("nvmem: brcm_nvram: parse NVRAM content into NVMEM cells")
Cc: stable@vger.kernel.org
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230127104015.23839-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiasheng Jiang 2023-01-27 10:40:06 +00:00 committed by Greg Kroah-Hartman
parent 4092267ad6
commit f5249bbae0
1 changed files with 3 additions and 0 deletions
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3
drivers/nvmem/brcm_nvram.c
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@ -97,6 +97,9 @@ static int brcm_nvram_parse(struct brcm_nvram *priv)
len = le32_to_cpu(header.len);
data = kzalloc(len, GFP_KERNEL);
if (!data)
return -ENOMEM;
memcpy_fromio(data, priv->base, len);
data[len - 1] = '\0';