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Jack Wang 51ea7da47b RDMA/rtrs-srv: Fix stack-out-of-bounds 
[ Upstream commit e6daa8f61d8def10f0619fe51b4c794f69598e4f ]

  BUG: KASAN: stack-out-of-bounds in _mlx4_ib_post_send+0x1bd2/0x2770 [mlx4_ib]
  Read of size 4 at addr ffff8880d5a7f980 by task kworker/0:1H/565

  CPU: 0 PID: 565 Comm: kworker/0:1H Tainted: G           O      5.4.84-storage #5.4.84-1+feature+linux+5.4.y+dbg+20201216.1319+b6b887b~deb10
  Hardware name: Supermicro H8QG6/H8QG6, BIOS 3.00       09/04/2012
  Workqueue: ib-comp-wq ib_cq_poll_work [ib_core]
  Call Trace:
   dump_stack+0x96/0xe0
   print_address_description.constprop.4+0x1f/0x300
   ? irq_work_claim+0x2e/0x50
   __kasan_report.cold.8+0x78/0x92
   ? _mlx4_ib_post_send+0x1bd2/0x2770 [mlx4_ib]
   kasan_report+0x10/0x20
   _mlx4_ib_post_send+0x1bd2/0x2770 [mlx4_ib]
   ? check_chain_key+0x1d7/0x2e0
   ? _mlx4_ib_post_recv+0x630/0x630 [mlx4_ib]
   ? lockdep_hardirqs_on+0x1a8/0x290
   ? stack_depot_save+0x218/0x56e
   ? do_profile_hits.isra.6.cold.13+0x1d/0x1d
   ? check_chain_key+0x1d7/0x2e0
   ? save_stack+0x4d/0x80
   ? save_stack+0x19/0x80
   ? __kasan_slab_free+0x125/0x170
   ? kfree+0xe7/0x3b0
   rdma_write_sg+0x5b0/0x950 [rtrs_server]

The problem is when we send imm_wr, the type should be ib_rdma_wr, so hw
driver like mlx4 can do rdma_wr(wr), so fix it by use the ib_rdma_wr as
type for imm_wr.

Fixes: 9cb8374804 ("RDMA/rtrs: server: main functionality")
Link: https://lore.kernel.org/r/20210212134525.103456-2-jinpu.wang@cloud.ionos.com
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Gioh Kim <gi-oh.kim@cloud.ionos.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-04 11:38:08 +01:00
arch powerpc/kuap: Restore AMR after replaying soft interrupts 2021-03-04 11:38:06 +01:00
block bsg: free the request before return error code 2021-03-04 11:37:42 +01:00
certs certs: Fix blacklist flag type confusion 2021-03-04 11:37:59 +01:00
crypto crypto: ecdh_helper - Ensure 'len >= secret.len' in decode_key() 2021-03-04 11:37:49 +01:00
Documentation watch_queue: Drop references to /dev/watch_queue 2021-03-04 11:37:59 +01:00
drivers RDMA/rtrs-srv: Fix stack-out-of-bounds 2021-03-04 11:38:08 +01:00
fs ceph: fix flush_snap logic after putting caps 2021-03-04 11:38:08 +01:00
include regulator: bd718x7, bd71828, Fix dvs voltage levels 2021-03-04 11:38:07 +01:00
init fgraph: Initialize tracing_graph_pause at task creation 2021-02-10 09:29:16 +01:00
ipc ipc: adjust proc_ipc_sem_dointvec definition to match prototype 2020-09-05 12:14:29 -07:00
kernel printk: avoid prb_first_valid_seq() where possible 2021-03-04 11:38:07 +01:00
lib udp: fix skb_copy_and_csum_datagram with odd segment sizes 2021-02-17 11:02:28 +01:00
LICENSES LICENSES/deprecated: add Zlib license text 2020-09-16 14:33:49 +02:00
mm mm: provide a saner PTE walking API for modules 2021-02-26 10:13:01 +01:00
net svcrdma: Hold private mutex while invoking rdma_accept() 2021-03-04 11:38:08 +01:00
samples watch_queue: Drop references to /dev/watch_queue 2021-03-04 11:37:59 +01:00
scripts scripts/recordmcount.pl: support big endian for ARCH sh 2021-02-26 10:13:02 +01:00
security certs: Fix blacklist flag type confusion 2021-03-04 11:37:59 +01:00
sound ASoC: simple-card-utils: Fix device module clock 2021-03-04 11:37:51 +01:00
tools perf symbols: Fix return value when loading PE DSO 2021-03-04 11:38:07 +01:00
usr Merge branch 'work.fdpic' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-08-07 13:29:39 -07:00
virt KVM: Use kvm_pfn_t for local PFN variable in hva_to_pfn_remapped() 2021-02-26 10:13:01 +01:00
.clang-format RDMA 5.10 pull request 2020-10-17 11:18:18 -07:00
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: docs: ignore sphinx_*/ directories 2020-09-10 10:44:31 -06:00
.mailmap mailmap: add two more addresses of Uwe Kleine-König 2020-12-06 10:19:07 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Jason Cooper to CREDITS 2020-11-30 10:20:34 +01:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-12-10 15:30:13 -08:00
Makefile Linux 5.10.19 2021-02-26 10:14:35 +01:00
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.