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Filename Latest commit message Latest commit date
Tadeusz Struk 4d6ebc4c49 tpm: fix invalid locking in NONBLOCKING mode 
commit d23d12484307b40eea549b8a858f5fffad913897 upstream.

When an application sends TPM commands in NONBLOCKING mode
the driver holds chip->tpm_mutex returning from write(),
which triggers: "WARNING: lock held when returning to user space".
To fix this issue the driver needs to release the mutex before
returning and acquire it again in tpm_dev_async_work() before
sending the command.

Cc: stable@vger.kernel.org
Fixes: 9e1b74a63f (tpm: add support for nonblocking operation)
Reported-by: Jeffrin Jose T <jeffrin@rajagiritech.edu.in>
Tested-by: Jeffrin Jose T <jeffrin@rajagiritech.edu.in>
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Reviewed-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>
2019-12-31 16:45:52 +01:00
arch MIPS: futex: Restore \n after sync instructions 2019-12-31 16:45:49 +01:00
block
certs
crypto crypto: aegis128/simd - build 32-bit ARM for v8 architecture explicitly 2019-12-31 16:43:57 +01:00
Documentation
drivers tpm: fix invalid locking in NONBLOCKING mode 2019-12-31 16:45:52 +01:00
fs btrfs: don't prematurely free work in scrub_missing_raid56_worker() 2019-12-31 16:45:50 +01:00
include net: avoid potential false sharing in neighbor related code 2019-12-31 16:45:03 +01:00
init
ipc
kernel bpf: Provide better register bounds after jmp32 instructions 2019-12-31 16:45:48 +01:00
lib ubsan, x86: Annotate and allow __ubsan_handle_shift_out_of_bounds() in uaccess regions 2019-12-31 16:44:25 +01:00
LICENSES
mm
net mac80211: consider QoS Null frames for STA_NULLFUNC_ACKED 2019-12-31 16:45:44 +01:00
samples samples: pktgen: fix proc_cmd command result check logic 2019-12-31 16:43:45 +01:00
scripts
security
sound ASoC: soc-pcm: check symmetry before hw_params 2019-12-31 16:45:42 +01:00
tools tools, bpf: Fix build for 'make -s tools/bpf O=<dir>' 2019-12-31 16:45:47 +01:00
usr
virt
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Makefile Linux 5.4.6 2019-12-21 11:05:23 +01:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.