]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
tpm: fix a kernel memory leak in tpm-sysfs.c
authorJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tue, 20 Jun 2017 09:38:02 +0000 (11:38 +0200)
committerJames Morris <james.l.morris@oracle.com>
Thu, 6 Jul 2017 23:49:24 +0000 (09:49 +1000)
commit13b47cfcfc60495cde216eef4c01040d76174cbe
treee052e8beacb8578b588a2ab84990d70593b8e496
parentd1bd4a792d3961a04e6154118816b00167aad91a
tpm: fix a kernel memory leak in tpm-sysfs.c

While cleaning up sysfs callback that prints EK we discovered a kernel
memory leak. This commit fixes the issue by zeroing the buffer used for
TPM command/response.

The leak happen when we use either tpm_vtpm_proxy, tpm_ibmvtpm or
xen-tpmfront.

Cc: stable@vger.kernel.org
Fixes: 0883743825e3 ("TPM: sysfs functions consolidation")
Reported-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
drivers/char/tpm/tpm-sysfs.c