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Chen Zhongjin 8d21554ec7 ASoC: core: Fix use-after-free in snd_soc_exit() [ Upstream commit `6ec27c5388` ] KASAN reports a use-after-free: BUG: KASAN: use-after-free in device_del+0xb5b/0xc60 Read of size 8 at addr ffff888008655050 by task rmmod/387 CPU: 2 PID: 387 Comm: rmmod Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) Call Trace: <TASK> dump_stack_lvl+0x79/0x9a print_report+0x17f/0x47b kasan_report+0xbb/0xf0 device_del+0xb5b/0xc60 platform_device_del.part.0+0x24/0x200 platform_device_unregister+0x2e/0x40 snd_soc_exit+0xa/0x22 [snd_soc_core] __do_sys_delete_module.constprop.0+0x34f/0x5b0 do_syscall_64+0x3a/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd ... </TASK> It's bacause in snd_soc_init(), snd_soc_util_init() is possble to fail, but its ret is ignored, which makes soc_dummy_dev unregistered twice. snd_soc_init() snd_soc_util_init() platform_device_register_simple(soc_dummy_dev) platform_driver_register() # fail platform_device_unregister(soc_dummy_dev) platform_driver_register() # success ... snd_soc_exit() snd_soc_util_exit() # soc_dummy_dev will be unregistered for second time To fix it, handle error and stop snd_soc_init() when util_init() fail. Also clean debugfs when util_init() or driver_register() fail. Fixes: `fb257897bf` ("ASoC: Work around allmodconfig failure") Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com> Link: https://lore.kernel.org/r/20221028031603.59416-1-chenzhongjin@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-11-25 17:45:42 +01:00
arch	x86/cpu: Restore AMD's DE_CFG MSR after resume	2022-11-16 09:57:20 +01:00
block	block, bfq: protect 'bfqd->queued' by 'bfqd->lock'	2022-11-10 18:14:24 +01:00
certs	certs/blacklist_hashes.c: fix const confusion in certs blacklist	2022-06-22 14:13:17 +02:00
crypto	crypto: akcipher - default implementation for setting a private key	2022-10-26 13:25:42 +02:00
Documentation	KVM: s390: pv: don't allow userspace to set the clock under PV	2022-11-16 09:57:10 +01:00
drivers	spi: stm32: Print summary 'callbacks suppressed' message	2022-11-25 17:45:42 +01:00
fs	btrfs: remove pointless and double ulist frees in error paths of qgroup tests	2022-11-25 17:45:40 +01:00
include	mtd: spi-nor: intel-spi: Disable write protection only if asked	2022-11-25 17:45:41 +01:00
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: remove memcg accounting for sops objects in do_semtimedop()	2022-11-10 18:14:29 +01:00
kernel	bpf: Fix wrong reg type conversion in release_reference()	2022-11-16 09:57:09 +01:00
lib	dyndbg: drop EXPORTed dynamic_debug_exec_queries	2022-10-26 13:25:34 +02:00
LICENSES
mm	mm/memremap.c: map FS_DAX device memory as decrypted	2022-11-16 09:57:17 +01:00
net	Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm	2022-11-25 17:45:40 +01:00
samples	x86: Prepare inline-asm for straight-line-speculation	2022-07-25 11:26:29 +02:00
scripts	cert host tools: Stop complaining about deprecated OpenSSL functions	2022-11-16 09:57:17 +01:00
security	capabilities: fix potential memleak on error path from vfs_getxattr_alloc()	2022-11-10 18:14:26 +01:00
sound	ASoC: core: Fix use-after-free in snd_soc_exit()	2022-11-25 17:45:42 +01:00
tools	selftests/intel_pstate: fix build for ARCH=x86_64	2022-11-25 17:45:39 +01:00
usr
virt	kvm: Add support for arch compat vm ioctls	2022-10-30 09:41:15 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
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.gitignore
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COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS	MAINTAINERS: add Amir as xfs maintainer for 5.10.y	2022-07-02 16:39:22 +02:00
Makefile	Linux 5.10.155	2022-11-16 09:57:20 +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.