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Tetsuo Handa a019b8d7df Bluetooth: initialize skb_queue_head at l2cap_chan_create() 
[ Upstream commit be85972393 ]

syzbot is hitting "INFO: trying to register non-static key." message [1],
for "struct l2cap_chan"->tx_q.lock spinlock is not yet initialized when
l2cap_chan_del() is called due to e.g. timeout.

Since "struct l2cap_chan"->lock mutex is initialized at l2cap_chan_create()
immediately after "struct l2cap_chan" is allocated using kzalloc(), let's
as well initialize "struct l2cap_chan"->{tx_q,srej_q}.lock spinlocks there.

[1] https://syzkaller.appspot.com/bug?extid=fadfba6a911f6bf71842

Reported-and-tested-by: syzbot <syzbot+fadfba6a911f6bf71842@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2021-05-19 10:12:53 +02:00
arch KVM/VMX: Invoke NMI non-IST entry instead of IST entry 2021-05-19 10:12:51 +02:00
block block: return -EBUSY when there are open partitions in blkdev_reread_part 2021-04-28 13:39:59 +02:00
certs certs: Fix blacklist flag type confusion 2021-03-04 11:37:59 +01:00
crypto async_xor: increase src_offs when dropping destination page 2021-05-14 09:49:59 +02:00
Documentation media: docs: Fix data organization of MEDIA_BUS_FMT_RGB101010_1X30 2021-05-14 09:50:23 +02:00
drivers i2c: bail out early when RDWR parameters are wrong 2021-05-19 10:12:53 +02:00
fs fs: dlm: flush swork on shutdown 2021-05-19 10:12:52 +02:00
include PM: runtime: Fix unpaired parent child_count for force_resume 2021-05-19 10:12:51 +02:00
init seccomp: Fix CONFIG tests for Seccomp_filters 2021-05-14 09:50:24 +02:00
ipc ipc: adjust proc_ipc_sem_dointvec definition to match prototype 2020-09-05 12:14:29 -07:00
kernel smp: Fix smp_call_function_single_async prototype 2021-05-14 09:50:46 +02:00
lib bug: Remove redundant condition check in report_bug 2021-05-14 09:50:32 +02:00
LICENSES LICENSES/deprecated: add Zlib license text 2020-09-16 14:33:49 +02:00
mm mm/memory-failure: unnecessary amount of unmapping 2021-05-14 09:50:45 +02:00
net Bluetooth: initialize skb_queue_head at l2cap_chan_create() 2021-05-19 10:12:53 +02:00
samples kfifo: fix ternary sign extension bugs 2021-05-14 09:50:45 +02:00
scripts kasan: fix hwasan build for gcc 2021-04-28 13:40:02 +02:00
security KEYS: trusted: Fix memory leak on object td 2021-05-19 10:12:50 +02:00
sound ALSA: bebob: enable to deliver MIDI messages for multiple ports 2021-05-19 10:12:53 +02:00
tools perf session: Add swap operation for event TIME_CONV 2021-05-14 09:50:45 +02:00
usr Merge branch 'work.fdpic' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-08-07 13:29:39 -07:00
virt kvm: Cap halt polling at kvm->max_halt_poll_ns 2021-05-19 10:12:51 +02:00
.clang-format RDMA 5.10 pull request 2020-10-17 11:18:18 -07:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: docs: ignore sphinx_*/ directories 2020-09-10 10:44:31 -06:00
.mailmap mailmap: add two more addresses of Uwe Kleine-König 2020-12-06 10:19:07 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Jason Cooper to CREDITS 2020-11-30 10:20:34 +01:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS MAINTAINERS: move the staging subsystem to lists.linux.dev 2021-03-25 09:04:18 +01:00
Makefile Linux 5.10.37 2021-05-14 09:50:46 +02:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.