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| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2023-01-27 10:40:06 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-28 14:36:28 +0100 |
| commit | b0576ade3aaf24b376ea1a4406ae138e2a22b0c0 (patch) | |
| tree | 50d23ff70fd5c0e5a1d29f9f61d037c0b774730f /drivers/nvmem | |
| parent | 2241ab53cbb5cdb08a6b2d4688feb13971058f65 (diff) | |
| download | linux-b0576ade3aaf24b376ea1a4406ae138e2a22b0c0.tar.gz linux-b0576ade3aaf24b376ea1a4406ae138e2a22b0c0.tar.bz2 linux-b0576ade3aaf24b376ea1a4406ae138e2a22b0c0.zip | |
nvmem: brcm_nvram: Add check for kzalloc
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 34130449f2d2..39aa27942f28 100644 --- a/drivers/nvmem/brcm_nvram.c +++ b/drivers/nvmem/brcm_nvram.c @@ -98,6 +98,9 @@ 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'; |