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Philipp Stanner d372dd09cf vdpa: solidrun: Fix UB bug with devres 
commit 0b364cf53b upstream.

In psnet_open_pf_bar() and snet_open_vf_bar() a string later passed to
pcim_iomap_regions() is placed on the stack. Neither
pcim_iomap_regions() nor the functions it calls copy that string.

Should the string later ever be used, this, consequently, causes
undefined behavior since the stack frame will by then have disappeared.

Fix the bug by allocating the strings on the heap through
devm_kasprintf().

Cc: stable@vger.kernel.org	# v6.3
Fixes: 51a8f9d7f5 ("virtio: vdpa: new SolidNET DPU driver.")
Reported-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Closes: https://lore.kernel.org/all/74e9109a-ac59-49e2-9b1d-d825c9c9f891@wanadoo.fr/
Suggested-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20241028074357.9104-3-pstanner@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2024-11-22 15:38:33 +01:00
arch x86/mm: Fix a kdump kernel failure on SME system when CONFIG_IMA_KEXEC=y 2024-11-22 15:38:33 +01:00
block block: Fix elevator_get_default() checking for NULL q->tag_set 2024-11-17 15:08:56 +01:00
certs certs: Reference revocation list for all keyrings 2023-08-17 20:12:41 +00:00
crypto crypto: api - Fix liveliness check in crypto_alg_tested 2024-11-17 15:08:56 +01:00
Documentation dt-bindings: net: xlnx,axi-ethernet: Correct phy-mode property value 2024-11-14 13:19:30 +01:00
drivers vdpa: solidrun: Fix UB bug with devres 2024-11-22 15:38:33 +01:00
fs ocfs2: uncache inode which has failed entering the group 2024-11-22 15:38:33 +01:00
include bonding: add ns target multicast address to slave device 2024-11-22 15:38:33 +01:00
init rcu-tasks: Initialize data to eliminate RCU-tasks/do_exit() deadlocks 2024-11-08 16:28:22 +01:00
io_uring io_uring: fix possible deadlock in io_register_iowq_max_workers() 2024-11-17 15:08:58 +01:00
ipc sysctl: treewide: drop unused argument ctl_table_root::set_ownership(table) 2024-08-11 12:47:13 +02:00
kernel bpf: Check validity of link->type in bpf_link_show_fdinfo() 2024-11-17 15:08:58 +01:00
lib x86/traps: Enable UBSAN traps on x86 2024-11-08 16:28:26 +01:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm mm: revert "mm: shmem: fix data-race in shmem_getattr()" 2024-11-22 15:38:33 +01:00
net net: sched: cls_u32: Fix u32's systematic failure to free IDR entries for hnodes. 2024-11-22 15:38:32 +01:00
rust rust: sync: require T: Sync for LockedBy::access 2024-10-10 11:57:44 +02:00
samples samples: pktgen: correct dev to DEV 2024-11-22 15:38:32 +01:00
scripts kconfig: qconf: fix buffer overflow in debug links 2024-10-10 11:58:01 +02:00
security security/keys: fix slab-out-of-bounds in key_task_permission 2024-11-14 13:19:30 +01:00
sound ASoC: fsl_micfil: Add sample rate constraint 2024-11-17 15:08:58 +01:00
tools tools/mm: fix compile error 2024-11-22 15:38:33 +01:00
usr initramfs: Encode dependency on KBUILD_BUILD_TIMESTAMP 2023-06-06 17:54:49 +09:00
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 6.6.62 2024-11-17 15:08:59 +01:00
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.