From: Tadeusz Struk tadeusz.struk@intel.com
commit f1689114acc5e89a196fec6d732dae3e48edb6ad upstream.
devm_kcalloc() can fail and return NULL so we need to check for that.
Cc: stable@vger.kernel.org Fixes: 58472f5cd4f6f ("tpm: validate TPM 2.0 commands") Signed-off-by: Tadeusz Struk tadeusz.struk@intel.com Reviewed-by: Jerry Snitselaar jsnitsel@redhat.com Reviewed-by: Jarkko Sakkinen jarkko.sakkinen@linux.intel.com Tested-by: Jarkko Sakkinen jarkko.sakkinen@linux.intel.com Signed-off-by: Jarkko Sakkinen jarkko.sakkinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/char/tpm/tpm2-cmd.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/char/tpm/tpm2-cmd.c +++ b/drivers/char/tpm/tpm2-cmd.c @@ -938,6 +938,10 @@ static int tpm2_get_cc_attrs_tbl(struct
chip->cc_attrs_tbl = devm_kcalloc(&chip->dev, 4, nr_commands, GFP_KERNEL); + if (!chip->cc_attrs_tbl) { + rc = -ENOMEM; + goto out; + }
rc = tpm_buf_init(&buf, TPM2_ST_NO_SESSIONS, TPM2_CC_GET_CAPABILITY); if (rc)