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Wojciech Drewek 9ee87d2b21 ice: Fix NULL pointer dereference in switchdev 
Commit 608a5c05c3 ("virtchnl: support queue rate limit and quanta
size configuration") introduced new virtchnl ops:
- get_qos_caps
- cfg_q_bw
- cfg_q_quanta

New ops were added to ice_virtchnl_dflt_ops, in
commit 015307754a ("ice: Support VF queue rate limit and quanta
size configuration"), but not to the ice_virtchnl_repr_ops. Because
of that, if we get one of those messages in switchdev mode we end up
with NULL pointer dereference:

[ 1199.794701] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 1199.794804] Workqueue: ice ice_service_task [ice]
[ 1199.794878] RIP: 0010:0x0
[ 1199.795027] Call Trace:
[ 1199.795033]  <TASK>
[ 1199.795039]  ? __die+0x20/0x70
[ 1199.795051]  ? page_fault_oops+0x140/0x520
[ 1199.795064]  ? exc_page_fault+0x7e/0x270
[ 1199.795074]  ? asm_exc_page_fault+0x22/0x30
[ 1199.795086]  ice_vc_process_vf_msg+0x6e5/0xd30 [ice]
[ 1199.795165]  __ice_clean_ctrlq+0x734/0x9d0 [ice]
[ 1199.795207]  ice_service_task+0xccf/0x12b0 [ice]
[ 1199.795248]  process_one_work+0x21a/0x620
[ 1199.795260]  worker_thread+0x18d/0x330
[ 1199.795269]  ? __pfx_worker_thread+0x10/0x10
[ 1199.795279]  kthread+0xec/0x120
[ 1199.795288]  ? __pfx_kthread+0x10/0x10
[ 1199.795296]  ret_from_fork+0x2d/0x50
[ 1199.795305]  ? __pfx_kthread+0x10/0x10
[ 1199.795312]  ret_from_fork_asm+0x1a/0x30
[ 1199.795323]  </TASK>

Fixes: 015307754a ("ice: Support VF queue rate limit and quanta size configuration")
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
 		2024-12-03 10:11:52 -08:00
Documentation docs: net: bareudp: fix spelling and grammar mistakes 2024-11-30 13:54:28 -08:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
arch dmaengine updates for v6.13 2024-11-27 13:25:47 -08:00
block for-6.13/block-20241118 2024-11-18 16:50:08 -08:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto Random number generator updates for Linux 6.13-rc1. 2024-11-19 10:43:44 -08:00
drivers ice: Fix NULL pointer dereference in switchdev 2024-12-03 10:11:52 -08:00
fs Changes for 6.13-rc1 2024-11-28 09:22:00 -08:00
include tcp: populate XPS related fields of timewait sockets 2024-11-30 13:00:52 -08:00
init - The series "resource: A couple of cleanups" from Andy Shevchenko 2024-11-25 16:09:48 -08:00
io_uring A rather large update for timekeeping and timers: 2024-11-19 16:35:06 -08:00
ipc - The series "resource: A couple of cleanups" from Andy Shevchenko 2024-11-25 16:09:48 -08:00
kernel Modules changes for v6.13-rc1 2024-11-27 10:20:50 -08:00
lib Modules changes for v6.13-rc1 2024-11-27 10:20:50 -08:00
mm memblock: updates for 6.13-rc1 2024-11-27 11:13:25 -08:00
net net: hsr: must allocate more bytes for RedBox support 2024-12-03 12:08:33 +01:00
rust rust: fix up formatting after merge 2024-11-26 17:54:58 -08:00
samples Rust changes for v6.13 2024-11-26 14:00:26 -08:00
scripts Modules changes for v6.13-rc1 2024-11-27 10:20:50 -08:00
security selinux: use sk_to_full_sk() in selinux_ip_output() 2024-11-30 13:24:33 -08:00
sound soundwire updates for 6.13 2024-11-27 13:38:09 -08:00
tools selftests: drv-net: rss_ctx: Add test for ntuple rule 2024-11-30 14:16:12 -08:00
usr initramfs: shorten cmd_initfs in usr/Makefile 2024-07-16 01:07:52 +09:00
virt VFIO updates for v6.13 2024-11-27 12:57:03 -08:00
.clang-format clang-format: Update with v6.11-rc1's `for_each` macro list 2024-08-02 13:20:31 +02:00
.clippy.toml rust: enable Clippy's `check-private-items` 2024-10-07 21:39:57 +02:00
.cocciconfig
…
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: Retire Ralf Baechle 2024-11-12 15:48:59 +01:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore rust: introduce `.clippy.toml` 2024-10-07 21:39:05 +02:00
.mailmap media updates for v6.13-rc1 2024-11-20 14:01:15 -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 cgroup: Changes for v6.13 2024-11-20 09:54:49 -08:00
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 MAINTAINERS: list PTP drivers under networking 2024-12-02 15:42:40 -08:00
Makefile Modules changes for v6.13-rc1 2024-11-27 10:20:50 -08:00
README README: Fix spelling 2024-03-18 03:36:32 -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 reStructuredText 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.