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Filename Latest commit message Latest commit date
Badhri Jagan Sridharan 4f9c0a7c27 usb: typec: altmodes/displayport: fix pin_assignment_show 
commit d8f28269dd4bf9b55c3fb376ae31512730a96fce upstream.

This patch fixes negative indexing of buf array in pin_assignment_show
when get_current_pin_assignments returns 0 i.e. no compatible pin
assignments are found.

BUG: KASAN: use-after-free in pin_assignment_show+0x26c/0x33c
...
Call trace:
dump_backtrace+0x110/0x204
dump_stack_lvl+0x84/0xbc
print_report+0x358/0x974
kasan_report+0x9c/0xfc
__do_kernel_fault+0xd4/0x2d4
do_bad_area+0x48/0x168
do_tag_check_fault+0x24/0x38
do_mem_abort+0x6c/0x14c
el1_abort+0x44/0x68
el1h_64_sync_handler+0x64/0xa4
el1h_64_sync+0x78/0x7c
pin_assignment_show+0x26c/0x33c
dev_attr_show+0x50/0xc0

Fixes: 0e3bb7d689 ("usb: typec: Add driver for DisplayPort alternate mode")
Cc: stable@vger.kernel.org
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20230508214443.893436-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-30 12:44:06 +01:00
arch ARM: 9296/1: HP Jornada 7XX: fix kernel-doc warnings 2023-05-30 12:44:01 +01:00
block
certs
crypto crypto: drbg - Only fail when jent is unavailable in FIPS mode 2023-05-17 11:35:42 +02:00
Documentation media: uapi: add MEDIA_BUS_FMT_METADATA_FIXED media bus format. 2023-05-17 11:35:36 +02:00
drivers usb: typec: altmodes/displayport: fix pin_assignment_show 2023-05-30 12:44:06 +01:00
fs btrfs: fix space cache inconsistency after error loading it from disk 2023-05-30 12:44:04 +01:00
include ip_gre, ip6_gre: Fix race condition on o_seqno in collect_md mode 2023-05-30 12:44:05 +01:00
init
ipc
kernel relayfs: fix out-of-bounds access in relay_file_read 2023-05-17 11:35:58 +02:00
lib lib: cpu_rmap: Avoid use after free on rmap->obj array entries 2023-05-30 12:44:03 +01:00
LICENSES
mm mm/page_alloc: fix potential deadlock on zonelist_update_seq seqlock 2023-05-17 11:36:05 +02:00
net vlan: fix a potential uninit-value in vlan_dev_hard_start_xmit() 2023-05-30 12:44:06 +01:00
samples samples/bpf: Fix fout leak in hbm's run_bpf_prog 2023-05-30 12:44:03 +01:00
scripts recordmcount: Fix memory leaks in the uwrite function 2023-05-30 12:44:04 +01:00
security
sound ALSA: firewire-digi00x: prevent potential use after free 2023-05-30 12:44:05 +01:00
tools cpupower: Make TSC read per CPU for Mperf monitor 2023-05-30 12:44:04 +01:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
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.mailmap
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Makefile Linux 5.4.243 2023-05-17 11:36:05 +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.