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Yajun Deng c61a3f2df1 ntb_hw_switchtec: Fix shift-out-of-bounds in switchtec_ntb_mw_set_trans 
[ Upstream commit de203da734 ]

There is a kernel API ntb_mw_clear_trans() would pass 0 to both addr and
size. This would make xlate_pos negative.

[   23.734156] switchtec switchtec0: MW 0: part 0 addr 0x0000000000000000 size 0x0000000000000000
[   23.734158] ================================================================================
[   23.734172] UBSAN: shift-out-of-bounds in drivers/ntb/hw/mscc/ntb_hw_switchtec.c:293:7
[   23.734418] shift exponent -1 is negative

Ensuring xlate_pos is a positive or zero before BIT.

Fixes: 1e2fd202f8 ("ntb_hw_switchtec: Check for alignment of the buffer in mw_set_trans()")
Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-04-10 14:37:39 +02:00
arch riscv: ftrace: Add parentheses in macro definitions of make_call_t0 and make_call_ra 2025-04-10 14:37:38 +02:00
block block: fix 'kmem_cache of name 'bio-108' already exists' 2025-03-22 12:50:44 -07:00
certs certs: Reference revocation list for all keyrings 2023-08-17 20:12:41 +00:00
crypto crypto: ecc - Prevent ecc_digits_from_bytes from reading too many bytes 2025-01-09 13:31:52 +01:00
Documentation dt-bindings: vendor-prefixes: add GOcontroll 2025-04-10 14:37:27 +02:00
drivers ntb_hw_switchtec: Fix shift-out-of-bounds in switchtec_ntb_mw_set_trans 2025-04-10 14:37:39 +02:00
fs cifs: fix incorrect validation for num_aces field of smb_acl 2025-04-10 14:37:37 +02:00
include rcu-tasks: Always inline rcu_irq_work_resched() 2025-04-10 14:37:36 +02:00
init rust: Disallow BTF generation with Rust + LTO 2025-03-22 12:50:48 -07:00
io_uring io_uring: fix error pbuf checking 2025-03-22 12:50:45 -07:00
ipc ipc: fix memleak if msg_init_ns failed in create_ipc_ns 2024-12-09 10:32:54 +01:00
kernel locking/semaphore: Use wake_q to wake up processes outside lock critical section 2025-04-10 14:37:38 +02:00
lib lib: 842: Improve error handling in sw842_compress() 2025-04-10 14:37:30 +02:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm x86/mm/pat: Fix VM_PAT handling when fork() fails in copy_page_range() 2025-04-10 14:37:30 +02:00
net can: statistics: use atomic access in hot path 2025-04-10 14:37:38 +02:00
rust rust: lockdep: Remove support for dynamically allocated LockClassKeys 2025-03-22 12:50:50 -07:00
samples samples/landlock: Fix possible NULL dereference in parse_path() 2025-02-08 09:51:57 +01:00
scripts selinux: Chain up tool resolving errors in install_policy.sh 2025-04-10 14:37:26 +02:00
security smack: dont compile ipv6 code unless ipv6 is configured 2025-04-10 14:37:25 +02:00
sound ALSA: hda/realtek: Add mute LED quirk for HP Pavilion x360 14-dy1xxx 2025-04-10 14:37:38 +02:00
tools objtool: Fix verbose disassembly if CROSS_COMPILE isn't set 2025-04-10 14:37:36 +02:00
usr kbuild: hdrcheck: fix cross build with clang 2025-03-13 12:58:38 +01:00
virt KVM: Use dedicated mutex to protect kvm_usage_count to avoid deadlock 2024-10-04 16:29:47 +02:00
.clang-format iommu: Add for_each_group_device() 2023-05-23 08:15:51 +02:00
.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: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore Remove *.orig pattern from .gitignore 2024-10-04 16:29:44 +02:00
.mailmap 20 hotfixes. 12 are cc:stable and the remainder address post-6.5 issues 2023-10-24 09:52:16 -10:00
.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 USB: Remove Wireless USB and UWB documentation 2023-08-09 14:17:32 +02:00
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 membarrier: riscv: Add full memory barrier in switch_mm() 2024-09-12 11:11:45 +02:00
Makefile Linux 6.6.86 2025-04-07 10:06:37 +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.