Messages in this thread Patch in this message | | | From | Jiasheng Jiang <> | Subject | [PATCH] nvmem: brcm_nvram: Add check for kzalloc | Date | Mon, 12 Dec 2022 11:39:15 +0800 |
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Add the check for the return value of kzalloc in order to avoid NULL pointer dereference.
Fixes: 6e977eaa8280 ("nvmem: brcm_nvram: parse NVRAM content into NVMEM cells") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> --- drivers/nvmem/brcm_nvram.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/nvmem/brcm_nvram.c b/drivers/nvmem/brcm_nvram.c index 4441daa20965..7bd65fc2942e 100644 --- a/drivers/nvmem/brcm_nvram.c +++ b/drivers/nvmem/brcm_nvram.c @@ -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'; -- 2.25.1
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