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Namjae Jeon d070c4dd2a ksmbd: replace one-element array with flex-array member in struct smb2_ea_info 
commit 0ba5439d9a upstream.

UBSAN complains about out-of-bounds array indexes on 1-element arrays in
struct smb2_ea_info.

UBSAN: array-index-out-of-bounds in fs/smb/server/smb2pdu.c:4335:15
index 1 is out of range for type 'char [1]'
CPU: 1 PID: 354 Comm: kworker/1:4 Not tainted 6.5.0-rc4 #1
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop
Reference Platform, BIOS 6.00 07/22/2020
Workqueue: ksmbd-io handle_ksmbd_work [ksmbd]
Call Trace:
 <TASK>
 __dump_stack linux/lib/dump_stack.c:88
 dump_stack_lvl+0x48/0x70 linux/lib/dump_stack.c:106
 dump_stack+0x10/0x20 linux/lib/dump_stack.c:113
 ubsan_epilogue linux/lib/ubsan.c:217
 __ubsan_handle_out_of_bounds+0xc6/0x110 linux/lib/ubsan.c:348
 smb2_get_ea linux/fs/smb/server/smb2pdu.c:4335
 smb2_get_info_file linux/fs/smb/server/smb2pdu.c:4900
 smb2_query_info+0x63ae/0x6b20 linux/fs/smb/server/smb2pdu.c:5275
 __process_request linux/fs/smb/server/server.c:145
 __handle_ksmbd_work linux/fs/smb/server/server.c:213
 handle_ksmbd_work+0x348/0x10b0 linux/fs/smb/server/server.c:266
 process_one_work+0x85a/0x1500 linux/kernel/workqueue.c:2597
 worker_thread+0xf3/0x13a0 linux/kernel/workqueue.c:2748
 kthread+0x2b7/0x390 linux/kernel/kthread.c:389
 ret_from_fork+0x44/0x90 linux/arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x1b/0x30 linux/arch/x86/entry/entry_64.S:304
 </TASK>

Cc: stable@vger.kernel.org
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2023-09-06 21:26:59 +01:00
arch parisc: sys_parisc: parisc_personality() is called from asm code 2023-09-02 09:16:19 +02:00
block blk-crypto: dynamically allocate fallback profile 2023-08-23 17:52:39 +02:00
certs certs: Fix build error when PKCS#11 URI contains semicolon 2023-02-09 11:28:11 +01:00
crypto crypto: jitter - correct health test during initialization 2023-07-19 16:21:42 +02:00
Documentation ACPI: thermal: Drop nocrt parameter 2023-09-02 09:16:18 +02:00
drivers thunderbolt: Fix a backport error for display flickering issue 2023-09-02 09:16:20 +02:00
fs ksmbd: replace one-element array with flex-array member in struct smb2_ea_info 2023-09-06 21:26:59 +01:00
include module: Expose module_init_layout_section() 2023-09-02 09:16:18 +02:00
init x86/mm: Initialize text poking earlier 2023-08-08 20:03:49 +02:00
io_uring io_uring/parisc: Adjust pgoff in io_uring mmap() for parisc 2023-09-02 09:16:19 +02:00
ipc ipc: fix memory leak in init_mqueue_fs() 2022-12-31 13:32:01 +01:00
kernel kallsyms: Fix kallsyms_selftest failure 2023-09-02 09:16:19 +02:00
lib maple_tree: disable mas_wr_append() when other readers are possible 2023-08-30 16:11:13 +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 madvise:madvise_free_pte_range(): don't use mapcount() against large folio for sharing check 2023-08-30 16:11:11 +02:00
net can: raw: add missing refcount for memory leak fix 2023-08-30 16:11:11 +02:00
rust rust: allocator: Prevent mis-aligned allocation 2023-08-11 12:08:18 +02:00
samples samples: ftrace: Save required argument registers in sample trampolines 2023-07-23 13:49:44 +02:00
scripts gcc-plugins: Reorganize gimple includes for GCC 13 2023-08-16 18:27:20 +02:00
security selinux: set next pointer before attaching to list 2023-08-30 16:11:07 +02:00
sound ASoC: amd: vangogh: select CONFIG_SND_AMD_ACP_CONFIG 2023-08-30 16:11:13 +02:00
tools selftests/net: mv bpf/nat6to4.c to net folder 2023-08-30 16:11:10 +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: Grab a reference to KVM for VM and vCPU stats file descriptors 2023-08-03 10:24:08 +02:00
.clang-format inet: ping: use hlist_nulls rcu iterator during lookup 2022-12-01 12:42:46 +01:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.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 9 hotfixes. 6 for MM, 3 for other areas. Four of these patches address 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 Kbuild updates for v6.1 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 devlink: move code to a dedicated directory 2023-08-30 16:11:00 +02:00
Makefile Linux 6.1.51 2023-09-02 09:16:20 +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.