Kernel for Galaxy S24, rebased on CLO sources (WIP)
Go to file
Zhu Yanjun 26256aa7ed RDMA/rxe: Fix the use-before-initialization error of resp_pkts
[ Upstream commit 2a62b6210ce876c596086ab8fd4c8a0c3d10611a ]

In the following:

  Call Trace:
   <TASK>
   __dump_stack lib/dump_stack.c:88 [inline]
   dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
   assign_lock_key kernel/locking/lockdep.c:982 [inline]
   register_lock_class+0xdb6/0x1120 kernel/locking/lockdep.c:1295
   __lock_acquire+0x10a/0x5df0 kernel/locking/lockdep.c:4951
   lock_acquire kernel/locking/lockdep.c:5691 [inline]
   lock_acquire+0x1b1/0x520 kernel/locking/lockdep.c:5656
   __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
   _raw_spin_lock_irqsave+0x3d/0x60 kernel/locking/spinlock.c:162
   skb_dequeue+0x20/0x180 net/core/skbuff.c:3639
   drain_resp_pkts drivers/infiniband/sw/rxe/rxe_comp.c:555 [inline]
   rxe_completer+0x250d/0x3cc0 drivers/infiniband/sw/rxe/rxe_comp.c:652
   rxe_qp_do_cleanup+0x1be/0x820 drivers/infiniband/sw/rxe/rxe_qp.c:761
   execute_in_process_context+0x3b/0x150 kernel/workqueue.c:3473
   __rxe_cleanup+0x21e/0x370 drivers/infiniband/sw/rxe/rxe_pool.c:233
   rxe_create_qp+0x3f6/0x5f0 drivers/infiniband/sw/rxe/rxe_verbs.c:583

This is a use-before-initialization problem.

It happens because rxe_qp_do_cleanup is called during error unwind before
the struct has been fully initialized.

Move the initialization of the skb earlier.

Fixes: 8700e3e7c4 ("Soft RoCE driver")
Link: https://lore.kernel.org/r/20230602035408.741534-1-yanjun.zhu@intel.com
Reported-by: syzbot+eba589d8f49c73d356da@syzkaller.appspotmail.com
Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-06-21 16:00:59 +02:00
arch powerpc/purgatory: remove PGO flags 2023-06-21 16:00:55 +02:00
block blk-mq: fix blk_mq_hw_ctx active request accounting 2023-06-14 11:15:31 +02:00
certs certs: Fix build error when PKCS#11 URI contains semicolon 2023-02-09 11:28:11 +01:00
crypto KEYS: asymmetric: Copy sig and digest in public_key_verify_signature() 2023-06-09 10:34:28 +02:00
Documentation mm: page_table_check: Make it dependent on EXCLUSIVE_SYSTEM_RAM 2023-06-14 11:15:29 +02:00
drivers RDMA/rxe: Fix the use-before-initialization error of resp_pkts 2023-06-21 16:00:59 +02:00
fs btrfs: can_nocow_file_extent should pass down args->strict from callers 2023-06-21 16:00:55 +02:00
include netfilter: nf_tables: integrate pipapo into commit protocol 2023-06-21 16:00:58 +02:00
init gcc: disable '-Warray-bounds' for gcc-13 too 2023-04-26 14:28:43 +02:00
io_uring io_uring/net: save msghdr->msg_control for retries 2023-06-21 16:00:55 +02:00
ipc ipc: fix memory leak in init_mqueue_fs() 2022-12-31 13:32:01 +01:00
kernel kexec: support purgatories with .text.hot sections 2023-06-21 16:00:55 +02:00
lib test_firmware: prevent race conditions by a correct implementation of locking 2023-06-21 16:00:51 +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 zswap: do not shrink if cgroup may not zswap 2023-06-21 16:00:54 +02:00
net wifi: mac80211: take lock before setting vif links 2023-06-21 16:00:59 +02:00
rust rust: kernel: Mark rust_fmt_argument as extern "C" 2023-04-26 14:28:38 +02:00
samples samples/bpf: Fix fout leak in hbm's run_bpf_prog 2023-05-24 17:32:38 +01:00
scripts recordmcount: Fix memory leaks in the uwrite function 2023-05-24 17:32:41 +01:00
security selinux: don't use make's grouped targets feature yet 2023-06-09 10:34:24 +02:00
sound ALSA: hda/realtek: Add a quirk for Compaq N14JP6 2023-06-21 16:00:56 +02:00
tools selftests: gpio: gpio-sim: Fix BUG: test FAILED due to recent change 2023-06-21 16:00:52 +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: Fix vcpu_array[0] races 2023-05-24 17:32:50 +01:00
.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 platform/x86: Move existing HP drivers to a new hp subdir 2023-05-24 17:32:42 +01:00
Makefile Linux 6.1.34 2023-06-14 11:15:34 +02:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.