diff options
| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2023-01-27 13:40:06 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-09 13:28:19 +0300 |
| commit | f5249bbae0e736d612d2095ad79dc1389b3e89b5 (patch) | |
| tree | 40ab67925efb6e6199099150066888c29ea08054 /drivers/nvmem | |
| parent | 4092267ad66a02cbe4b36fe9018a25355d6f776b (diff) | |
| download | linux-f5249bbae0e736d612d2095ad79dc1389b3e89b5.tar.xz | |
nvmem: brcm_nvram: Add check for kzalloc
commit b0576ade3aaf24b376ea1a4406ae138e2a22b0c0 upstream.
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")
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>
Diffstat (limited to 'drivers/nvmem')
| -rw-r--r-- | drivers/nvmem/brcm_nvram.c | 3 |
1 files changed, 3 insertions, 0 deletions
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'; |