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Zheyu Ma 05e0bb8c3c ALSA: bcd2000: Fix a UAF bug on the error path of probing commit `ffb2759df7` upstream. When the driver fails in snd_card_register() at probe time, it will free the 'bcd2k->midi_out_urb' before killing it, which may cause a UAF bug. The following log can reveal it: [ 50.727020] BUG: KASAN: use-after-free in bcd2000_input_complete+0x1f1/0x2e0 [snd_bcd2000] [ 50.727623] Read of size 8 at addr ffff88810fab0e88 by task swapper/4/0 [ 50.729530] Call Trace: [ 50.732899] bcd2000_input_complete+0x1f1/0x2e0 [snd_bcd2000] Fix this by adding usb_kill_urb() before usb_free_urb(). Fixes: `b47a22290d` ("ALSA: MIDI driver for Behringer BCD2000 USB device") Signed-off-by: Zheyu Ma <zheyuma97@gmail.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20220715010515.2087925-1-zheyuma97@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-08-25 11:17:17 +02:00
Documentation	x86/speculation: Add RSB VM Exit protections	2022-08-11 12:57:53 +02:00
LICENSES	…
arch	x86: link vdso and boot with -z noexecstack --no-warn-rwx-segments	2022-08-25 11:17:17 +02:00
block	block: fix bio_clone_blkg_association() to associate with proper blkcg_gq	2022-06-14 18:11:50 +02:00
certs	certs/blacklist_hashes.c: fix const confusion in certs blacklist	2022-06-22 14:11:22 +02:00
crypto	crypto: drbg - make reseeding from get_random_bytes() synchronous	2022-06-22 14:11:18 +02:00
drivers	scsi: Revert "scsi: qla2xxx: Fix disk failure to rediscover"	2022-08-25 11:17:17 +02:00
fs	ntfs: fix use-after-free in ntfs_ucsncmp()	2022-08-03 11:59:37 +02:00
include	ipv6/addrconf: fix a null-ptr-deref bug for ip6_ptr	2022-08-03 11:59:39 +02:00
init	random: handle latent entropy and command line from random_init()	2022-06-22 14:11:17 +02:00
ipc	ipc/mqueue: use get_tree_nodev() in mqueue_get_tree()	2022-06-14 18:11:41 +02:00
kernel	bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds()	2022-08-11 12:57:51 +02:00
lib	locking/refcount: Consolidate implementations of refcount_t	2022-07-29 17:14:17 +02:00
mm	mm/mempolicy: fix uninit-value in mpol_rebind_policy()	2022-07-29 17:14:16 +02:00
net	sctp: leave the err path free in sctp_stream_init to sctp_stream_free	2022-08-03 11:59:41 +02:00
samples	samples/kretprobes: Fix return value if register_kretprobe() failed	2021-11-17 09:48:39 +01:00
scripts	modpost: fix section mismatch check for exported init/exit sections	2022-06-29 08:58:49 +02:00
security	ima: remove the IMA_TEMPLATE Kconfig option	2022-07-29 17:14:16 +02:00
sound	ALSA: bcd2000: Fix a UAF bug on the error path of probing	2022-08-25 11:17:17 +02:00
tools	x86/speculation: Add RSB VM Exit protections	2022-08-11 12:57:53 +02:00
usr	…
virt	KVM: Don't null dereference ops->destroy	2022-08-11 12:57:52 +02:00
.clang-format	…
.cocciconfig	…
.get_maintainer.ignore	…
.gitattributes	…
.gitignore	…
.mailmap	…
COPYING	…
CREDITS	…
Kbuild	…
Kconfig	…
MAINTAINERS	MAINTAINERS: co-maintain random.c	2022-06-22 14:11:05 +02:00
Makefile	Makefile: link with -z noexecstack --no-warn-rwx-segments	2022-08-25 11:17:17 +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.