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Filename Latest commit message Latest commit date
Mateusz Nosek 2db7590371 futex: Fix incorrect should_fail_futex() handling
[ Upstream commit 921c7ebd1337d1a46783d7e15a850e12aed2eaa0 ]

If should_futex_fail() returns true in futex_wake_pi(), then the 'ret'
variable is set to -EFAULT and then immediately overwritten. So the failure
injection is non-functional.

Fix it by actually leaving the function and returning -EFAULT.

The Fixes tag is kinda blury because the initial commit which introduced
failure injection was already sloppy, but the below mentioned commit broke
it completely.

[ tglx: Massaged changelog ]

Fixes: 6b4f4bc9cb ("locking/futex: Allow low-level atomic operations to return -EAGAIN")
Signed-off-by: Mateusz Nosek <mateusznosek0@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20200927000858.24219-1-mateusznosek0@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-05 11:43:13 +01:00
arch x86/unwind/orc: Fix inactive tasks with stack pointer in %sp on GCC 10 compiled kernels 2020-11-05 11:43:12 +01:00
block
certs
crypto
Documentation xen/events: defer eoi in case of excessive number of events 2020-11-05 11:43:12 +01:00
drivers ata: sata_nv: Fix retrieving of active qcs 2020-11-05 11:43:12 +01:00
fs
include xen/events: add a new "late EOI" evtchn framework 2020-11-05 11:43:10 +01:00
init
ipc
kernel futex: Fix incorrect should_fail_futex() handling 2020-11-05 11:43:13 +01:00
lib
LICENSES
mm
net
samples
scripts
security evm: Check size of security.evm before using it 2020-11-01 12:01:05 +01:00
sound
tools bpf: Fix comment for helper bpf_current_task_under_cgroup() 2020-11-01 12:01:05 +01:00
usr
virt
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.cocciconfig
.get_maintainer.ignore
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Makefile Linux 5.4.74 2020-11-01 12:01:07 +01:00
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.