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Tetsuo Handa b271090eea Input: iforce - wake up after clearing IFORCE_XMIT_RUNNING flag commit `98e0121570` upstream. syzbot is reporting hung task at __input_unregister_device() [1], for iforce_close() waiting at wait_event_interruptible() with dev->mutex held is blocking input_disconnect_device() from __input_unregister_device(). It seems that the cause is simply that commit `c2b27ef672` ("Input: iforce - wait for command completion when closing the device") forgot to call wake_up() after clear_bit(). Fix this problem by introducing a helper that calls clear_bit() followed by wake_up_all(). Reported-by: syzbot <syzbot+deb6abc36aad4008f407@syzkaller.appspotmail.com> Fixes: `c2b27ef672` ("Input: iforce - wait for command completion when closing the device") Tested-by: syzbot <syzbot+deb6abc36aad4008f407@syzkaller.appspotmail.com> Suggested-by: Fabio M. De Francesco <fmdefrancesco@gmail.com> Co-developed-by: Hillf Danton <hdanton@sina.com> Signed-off-by: Hillf Danton <hdanton@sina.com> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Link: https://lore.kernel.org/r/887021c3-4f13-40ce-c8b9-aa6e09faa3a7@I-love.SAKURA.ne.jp Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-09-08 11:11:37 +02:00
arch	powerpc: align syscall table for ppc32	2022-09-08 11:11:37 +02:00
block	blk-mq: fix io hung due to missing commit_rqs	2022-08-31 17:15:24 +02:00
certs	certs/blacklist_hashes.c: fix const confusion in certs blacklist	2022-06-22 14:13:17 +02:00
crypto	KEYS: asymmetric: enforce SM2 signature use pkey algo	2022-08-21 15:16:22 +02:00
Documentation	Documentation/ABI: Mention retbleed vulnerability info file for sysfs	2022-08-31 17:15:23 +02:00
drivers	Input: iforce - wake up after clearing IFORCE_XMIT_RUNNING flag	2022-09-08 11:11:37 +02:00
fs	xfs: revert "xfs: actually bump warning counts when we send warnings"	2022-09-05 10:28:59 +02:00
include	platform/x86: pmc_atom: Fix SLP_TYPx bitfield mask	2022-09-08 11:11:36 +02:00
init	Kconfig: Add option for asm goto w/ tied outputs to workaround clang-13 bug	2022-06-09 10:21:25 +02:00
ipc	ipc/mqueue: use get_tree_nodev() in mqueue_get_tree()	2022-06-09 10:21:17 +02:00
kernel	bpf, cgroup: Fix kernel BUG in purge_effective_progs	2022-09-08 11:11:36 +02:00
lib	lib/vdso: Mark do_hres_timens() and do_coarse_timens() __always_inline()	2022-09-05 10:28:58 +02:00
LICENSES
mm	mm/rmap: Fix anon_vma->degree ambiguity leading to double-reuse	2022-09-05 10:28:56 +02:00
net	net/smc: Remove redundant refcount increase	2022-09-08 11:11:37 +02:00
samples	x86: Prepare inline-asm for straight-line-speculation	2022-07-25 11:26:29 +02:00
scripts	kbuild: Fix include path in scripts/Makefile.modpost	2022-09-05 10:28:55 +02:00
security	apparmor: Fix memleak in aa_simple_write_to_buffer()	2022-08-25 11:37:53 +02:00
sound	ALSA: hda: intel-nhlt: Correct the handling of fmt_config flexible array	2022-09-08 11:11:36 +02:00
tools	perf python: Fix build when PYTHON_CONFIG is user supplied	2022-08-31 17:15:24 +02:00
usr	usr/include/Makefile: add linux/nfc.h to the compile-test coverage	2022-02-01 17:25:48 +01:00
virt	KVM: Add infrastructure and macro to mark VM as bugged	2022-08-21 15:16:24 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore	kbuild: generate Module.symvers only when vmlinux exists	2021-05-19 10:12:59 +02:00
.mailmap	mailmap: add two more addresses of Uwe Kleine-König	2020-12-06 10:19:07 -08:00
COPYING
CREDITS	MAINTAINERS: Move Jason Cooper to CREDITS	2020-11-30 10:20:34 +01:00
Kbuild
Kconfig
MAINTAINERS	MAINTAINERS: add Amir as xfs maintainer for 5.10.y	2022-07-02 16:39:22 +02:00
Makefile	Linux 5.10.141	2022-09-05 10:28:59 +02:00
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.