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Filename Latest commit message Latest commit date
Desmond Cheong Zhi Xi 9b4f0170e0 Bluetooth: skip invalid hci_sync_conn_complete_evt
[ Upstream commit 92fe24a7db751b80925214ede43f8d2be792ea7b ]

Syzbot reported a corrupted list in kobject_add_internal [1]. This
happens when multiple HCI_EV_SYNC_CONN_COMPLETE event packets with
status 0 are sent for the same HCI connection. This causes us to
register the device more than once which corrupts the kset list.

As this is forbidden behavior, we add a check for whether we're
trying to process the same HCI_EV_SYNC_CONN_COMPLETE event multiple
times for one connection. If that's the case, the event is invalid, so
we report an error that the device is misbehaving, and ignore the
packet.

Link: https://syzkaller.appspot.com/bug?extid=66264bf2fd0476be7e6c [1]
Reported-by: syzbot+66264bf2fd0476be7e6c@syzkaller.appspotmail.com
Tested-by: syzbot+66264bf2fd0476be7e6c@syzkaller.appspotmail.com
Signed-off-by: Desmond Cheong Zhi Xi <desmondcheongzx@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-09-22 12:26:30 +02:00
arch xtensa: ISS: don't panic in rs_init 2021-09-22 12:26:30 +02:00
block scsi: bsg: Remove support for SCSI_IOCTL_SEND_COMMAND 2021-09-22 12:26:23 +02:00
certs certs: Trigger creation of RSA module signing key if it's not an RSA key 2021-09-15 09:47:29 +02:00
crypto
Documentation docs: Fix infiniband uverbs minor number 2021-09-22 12:26:23 +02:00
drivers ata: sata_dwc_460ex: No need to call phy_exit() befre phy_init() 2021-09-22 12:26:30 +02:00
fs userfaultfd: prevent concurrent API initialization 2021-09-22 12:26:26 +02:00
include serial: 8250: Define RX trigger levels for OxSemi 950 devices 2021-09-22 12:26:29 +02:00
init
ipc
kernel dma-debug: fix debugfs initialization order 2021-09-22 12:26:24 +02:00
lib bpf/tests: Do not PASS tests without actually testing the result 2021-09-22 12:26:29 +02:00
LICENSES
mm mm/page_alloc: speed up the iteration of max_order 2021-09-12 08:56:41 +02:00
net Bluetooth: skip invalid hci_sync_conn_complete_evt 2021-09-22 12:26:30 +02:00
samples samples: bpf: Fix tracex7 error raised on the missing argument 2021-09-22 12:26:30 +02:00
scripts kbuild: Fix 'no symbols' warning when CONFIG_TRIM_UNUSD_KSYMS=y 2021-09-22 12:26:26 +02:00
security Smack: Fix wrong semantics in smk_access_entry() 2021-09-22 12:26:27 +02:00
sound ASoC: atmel: ATMEL drivers don't need HAS_DMA 2021-09-22 12:26:26 +02:00
tools tools/thermal/tmon: Add cross compiling support 2021-09-22 12:26:20 +02:00
usr
virt
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.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
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Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.147 2021-09-16 12:56:14 +02:00
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.