linux_dsm_epyc7002/drivers/char
Jarkko Sakkinen 67118bb78d KEYS: trusted: Reserve TPM for seal and unseal operations
commit 8c657a0590de585b1115847c17b34a58025f2f4b upstream.

When TPM 2.0 trusted keys code was moved to the trusted keys subsystem,
the operations were unwrapped from tpm_try_get_ops() and tpm_put_ops(),
which are used to take temporarily the ownership of the TPM chip. The
ownership is only taken inside tpm_send(), but this is not sufficient,
as in the key load TPM2_CC_LOAD, TPM2_CC_UNSEAL and TPM2_FLUSH_CONTEXT
need to be done as a one single atom.

Take the TPM chip ownership before sending anything with
tpm_try_get_ops() and tpm_put_ops(), and use tpm_transmit_cmd() to send
TPM commands instead of tpm_send(), reverting back to the old behaviour.

Fixes: 2e19e10131 ("KEYS: trusted: Move TPM2 trusted keys code")
Reported-by: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: stable@vger.kernel.org
Cc: David Howells <dhowells@redhat.com>
Cc: Mimi Zohar <zohar@linux.ibm.com>
Cc: Sumit Garg <sumit.garg@linaro.org>
Acked-by Sumit Garg <sumit.garg@linaro.org>
Tested-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04 11:38:29 +01:00
..
agp agp: use semicolons rather than commas to separate statements 2020-09-28 06:06:52 +10:00
hw_random hwrng: timeriomem - Fix cooldown period calculation 2021-03-04 11:37:49 +01:00
ipmi Bug fix pull for IPMI for 5.10 2020-10-14 15:00:20 -07:00
mwave char/mwave: remove redundant initialization of variable bRC 2020-07-10 14:50:51 +02:00
pcmcia
tpm KEYS: trusted: Reserve TPM for seal and unseal operations 2021-03-04 11:38:29 +01:00
xilinx_hwicap
xillybus
adi.c
apm-emulation.c
applicom.c
applicom.h
bsr.c
ds1620.c
dsp56k.c
dtlk.c
hangcheck-timer.c
hpet.c
Kconfig char: virtio: Select VIRTIO from VIRTIO_CONSOLE. 2020-09-07 14:32:40 +02:00
lp.c Merge 5.9-rc3 into char-misc-next 2020-08-31 07:17:17 +02:00
Makefile
mem.c /dev/zero: fixups for ->read 2020-09-07 10:46:35 +02:00
misc.c
mspec.c char: mspec: Use kvzalloc() in mspec_mmap() 2020-08-28 12:10:04 +02:00
nsc_gpio.c
nvram.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
nwbutton.c
nwbutton.h
nwflash.c
pc8736x_gpio.c
powernv-op-panel.c
ppdev.c
ps3flash.c
random.c random: fix the RNDRESEEDCRNG ioctl 2021-03-04 11:37:19 +01:00
raw.c raw: don't keep unopened block device around 2020-09-23 10:43:19 -06:00
scx200_gpio.c
sonypi.c
tb0219.c
tlclk.c
toshiba.c
ttyprintk.c ttyprintk: remove redundant initialization of variable ret 2020-07-10 14:50:51 +02:00
uv_mmtimer.c
virtio_console.c virtio: virtio_console: fix DMA memory allocation for rproc serial 2020-11-09 18:03:33 +01:00