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Luiz Augusto von Dentz 8c4b65f6c7 Bluetooth: hci_conn: Fix possible UAF 
commit 5dc7d23e16 upstream.

This fixes the following trace:

==================================================================
BUG: KASAN: slab-use-after-free in hci_conn_del+0xba/0x3a0
Write of size 8 at addr ffff88800208e9c8 by task iso-tester/31

CPU: 0 PID: 31 Comm: iso-tester Not tainted 6.3.0-rc2-g991aa4a69a47
 #4716
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.1-2.fc36
04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x1d/0x70
 print_report+0xce/0x610
 ? __virt_addr_valid+0xd4/0x150
 ? hci_conn_del+0xba/0x3a0
 kasan_report+0xdd/0x110
 ? hci_conn_del+0xba/0x3a0
 hci_conn_del+0xba/0x3a0
 hci_conn_hash_flush+0xf2/0x120
 hci_dev_close_sync+0x388/0x920
 hci_unregister_dev+0x122/0x260
 vhci_release+0x4f/0x90
 __fput+0x102/0x430
 task_work_run+0xf1/0x160
 ? __pfx_task_work_run+0x10/0x10
 ? mark_held_locks+0x24/0x90
 exit_to_user_mode_prepare+0x170/0x180
 syscall_exit_to_user_mode+0x19/0x50
 do_syscall_64+0x4e/0x90
 entry_SYSCALL_64_after_hwframe+0x70/0xda

Fixes: 0f00cd322d ("Bluetooth: Free potentially unfreed SCO connection")
Link: https://syzkaller.appspot.com/bug?extid=8bb72f86fc823817bc5d
Cc: <stable@vger.kernel.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-20 12:35:06 +02:00
arch
KVM: nVMX: Do not report error code when synthesizing VM-Exit from Real Mode
2023-04-13 16:55:30 +02:00
block
blk-throttle: Fix that bps of child could exceed bps limited in parent
2023-04-13 16:55:37 +02:00
certs
certs: Fix build error when PKCS#11 URI contains semicolon
2023-02-09 11:28:11 +01:00
crypto
crypto: rsa-pkcs1pad - Use akcipher_request_complete
2023-03-10 09:33:03 +01:00
Documentation
ALSA: hda/sigmatel: add pin overrides for Intel DP45SG motherboard
2023-04-20 12:35:05 +02:00
drivers
bluetooth: btbcm: Fix logic error in forming the board name.
2023-04-20 12:35:06 +02:00
fs
fs: drop peer group ids under namespace lock
2023-04-13 16:55:33 +02:00
include
mm: enable maple tree RCU mode by default.
2023-04-13 16:55:40 +02:00
init
gcc: disable -Warray-bounds for gcc-11 too
2023-01-14 10:33:43 +01:00
io_uring
io_uring: fix memory leak when removing provided buffers
2023-04-13 16:55:31 +02:00
ipc
ipc: fix memory leak in init_mqueue_fs()
2022-12-31 13:32:01 +01:00
kernel
mm: enable maple tree RCU mode by default.
2023-04-13 16:55:40 +02:00
lib
maple_tree: add RCU lock checking to rcu callback functions
2023-04-13 16:55:40 +02:00
LICENSES
LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers
2021-12-16 14:33:10 +01:00
mm
mm: enable maple tree RCU mode by default.
2023-04-13 16:55:40 +02:00
net
Bluetooth: hci_conn: Fix possible UAF
2023-04-20 12:35:06 +02:00
rust
rust: print: avoid evaluating arguments in pr_* macros in unsafe blocks
2023-02-06 08:06:34 +01:00
samples
ftrace: Export ftrace_free_filter() to modules
2023-02-01 08:34:37 +01:00
scripts
modpost: Fix processing of CRCs on 32-bit build machines
2023-04-06 12:10:53 +02:00
security
keys: Do not cache key in task struct if key is requested from kernel thread
2023-03-30 12:49:07 +02:00
sound
ALSA: hda/hdmi: disable KAE for Intel DG2
2023-04-20 12:35:06 +02:00
tools
bpftool: Print newline before '}' for struct with padding only fields
2023-04-13 16:55:40 +02:00
usr
usr/gen_init_cpio.c: remove unnecessary -1 values from int file
2022-10-03 14:21:44 -07:00
virt
KVM: Register /dev/kvm as the _very_ last thing during initialization
2023-03-10 09:34:11 +01:00
.clang-format
inet: ping: use hlist_nulls rcu iterator during lookup
2022-12-01 12:42:46 +01:00
.cocciconfig
…
.get_maintainer.ignore
get_maintainer: add Alan to .get_maintainer.ignore
2022-08-20 15:17:44 -07:00
.gitattributes
.gitattributes: use 'dts' diff driver for dts files
2019-12-04 19:44:11 -08:00
.gitignore
Kbuild: add Rust support
2022-09-28 09:02:20 +02:00
.mailmap
Merge tag 'mm-hotfixes-stable-2022-12-10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-12-10 17:10:52 -08:00
.rustfmt.toml
rust: add .rustfmt.toml
2022-09-28 09:02:20 +02:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
MAINTAINERS: Remove Michal Marek from Kbuild maintainers
2022-11-16 14:53:00 +09:00
Kbuild
Merge tag 'kbuild-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2022-10-10 12:00:45 -07:00
Kconfig
kbuild: ensure full rebuild when the compiler is updated
2020-05-12 13:28:33 +09:00
MAINTAINERS
audit: update the mailing list in MAINTAINERS
2023-02-25 11:25:42 +01:00
Makefile
Linux 6.1.24
2023-04-13 16:55:40 +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.
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