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Filename Latest commit message Latest commit date
Luiz Augusto von Dentz 4ad77cea01 Bluetooth: mgmt: Fix slab-out-of-bounds in tlv_data_is_valid 
[ Upstream commit 799acb9347915bfe4eac0ff2345b468f0a1ca207 ]

This fixes parsing of LTV entries when the length is 0.

Found with:

tools/mgmt-tester -s "Add Advertising - Success (ScRsp only)"

Add Advertising - Success (ScRsp only) - run
  Sending Add Advertising (0x003e)
  Test condition added, total 1
[   11.004577] ==================================================================
[   11.005292] BUG: KASAN: slab-out-of-bounds in tlv_data_is_valid+0x87/0xe0
[   11.005984] Read of size 1 at addr ffff888002c695b0 by task mgmt-tester/87
[   11.006711]
[   11.007176]
[   11.007429] Allocated by task 87:
[   11.008151]
[   11.008438] The buggy address belongs to the object at ffff888002c69580
[   11.008438]  which belongs to the cache kmalloc-64 of size 64
[   11.010526] The buggy address is located 48 bytes inside of
[   11.010526]  64-byte region [ffff888002c69580, ffff888002c695c0)
[   11.012423] The buggy address belongs to the page:
[   11.013291]
[   11.013544] Memory state around the buggy address:
[   11.014359]  ffff888002c69480: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   11.015453]  ffff888002c69500: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   11.016232] >ffff888002c69580: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc
[   11.017010]                                      ^
[   11.017547]  ffff888002c69600: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc
[   11.018296]  ffff888002c69680: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   11.019116] ==================================================================

Fixes: 2bb36870e8 ("Bluetooth: Unify advertising instance flags check")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:53:34 +02:00
arch KVM: nVMX: Ensure 64-bit shift when checking VMFUNC bitmap 2021-07-14 16:53:23 +02:00
block blk-wbt: make sure throttle is enabled properly 2021-07-14 16:53:25 +02:00
certs certs: Move load_system_certificate_list to a common function 2021-06-30 08:47:55 -04:00
crypto crypto: shash - avoid comparing pointers to exported functions under CFI 2021-07-14 16:53:13 +02:00
Documentation clocksource: Retry clock read if long delays detected 2021-07-14 16:53:18 +02:00
drivers Revert "be2net: disable bh with spin_lock in be_process_mcc" 2021-07-14 16:53:34 +02:00
fs dax: fix ENOMEM handling in grab_mapping_entry() 2021-07-14 16:53:25 +02:00
include net: sched: add barrier to ensure correct ordering for lockless qdisc 2021-07-14 16:53:31 +02:00
init kbuild: add CONFIG_LD_IS_LLD 2021-06-30 08:47:44 -04:00
ipc
kernel sched/uclamp: Fix uclamp_tg_restrict() 2021-07-14 16:53:24 +02:00
lib lib: vsprintf: Fix handling of number field widths in vsscanf 2021-07-14 16:53:16 +02:00
LICENSES
mm mm, futex: fix shared futex pgoff on shmem huge page 2021-06-30 08:47:55 -04:00
net Bluetooth: mgmt: Fix slab-out-of-bounds in tlv_data_is_valid 2021-07-14 16:53:34 +02:00
samples samples/bpf: Fix the error return code of xdp_redirect's main() 2021-07-14 16:53:30 +02:00
scripts kbuild: Fix objtool dependency for 'OBJECT_FILES_NON_STANDARD_<obj> := n' 2021-07-14 16:53:20 +02:00
security evm: fix writing <securityfs>/evm overflow 2021-07-14 16:53:21 +02:00
sound ALSA: hda/realtek: Apply LED fixup for HP Dragonfly G1, too 2021-07-14 16:52:59 +02:00
tools tc-testing: fix list handling 2021-07-14 16:53:31 +02:00
usr
virt KVM: do not allow mapping valid but non-reference-counted pages 2021-06-30 08:47:50 -04:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Makefile: fix GDB warning with CONFIG_RELR 2021-07-14 16:53:12 +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.