github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-08-02 05:12:01 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph
Linux kernel source tree
1,060,261 Commits 1 Branch 940 Tags 24 GiB
C 96.9%
Assembly 0.9%
Rust 0.6%
Shell 0.6%
Python 0.5%
Other 0.3%
de31854ece
Go to file
Dima Chumak de31854ece net/mlx5e: Fix nullptr on deleting mirroring rule 
Deleting a Tc rule with multiple outputs, one of which is internal port,
like this one:

  tc filter del dev enp8s0f0_0 ingress protocol ip pref 5 flower \
      dst_mac 0c:42:a1:d1:d0:88 \
      src_mac e4:ea:09:08:00:02 \
      action tunnel_key  set \
          src_ip 0.0.0.0 \
          dst_ip 7.7.7.8 \
          id 8 \
          dst_port 4789 \
      action mirred egress mirror dev vxlan_sys_4789 pipe \
      action mirred egress redirect dev enp8s0f0_1

Triggers a call trace:

  BUG: kernel NULL pointer dereference, address: 0000000000000230
  RIP: 0010:del_sw_hw_rule+0x2b/0x1f0 [mlx5_core]
  Call Trace:
   tree_remove_node+0x16/0x30 [mlx5_core]
   mlx5_del_flow_rules+0x51/0x160 [mlx5_core]
   __mlx5_eswitch_del_rule+0x4b/0x170 [mlx5_core]
   mlx5e_tc_del_fdb_flow+0x295/0x550 [mlx5_core]
   mlx5e_flow_put+0x1f/0x70 [mlx5_core]
   mlx5e_delete_flower+0x286/0x390 [mlx5_core]
   tc_setup_cb_destroy+0xac/0x170
   fl_hw_destroy_filter+0x94/0xc0 [cls_flower]
   __fl_delete+0x15e/0x170 [cls_flower]
   fl_delete+0x36/0x80 [cls_flower]
   tc_del_tfilter+0x3a6/0x6e0
   rtnetlink_rcv_msg+0xe5/0x360
   ? rtnl_calcit.isra.0+0x110/0x110
   netlink_rcv_skb+0x46/0x110
   netlink_unicast+0x16b/0x200
   netlink_sendmsg+0x202/0x3d0
   sock_sendmsg+0x33/0x40
   ____sys_sendmsg+0x1c3/0x200
   ? copy_msghdr_from_user+0xd6/0x150
   ___sys_sendmsg+0x88/0xd0
   ? ___sys_recvmsg+0x88/0xc0
   ? do_futex+0x10c/0x460
   __sys_sendmsg+0x59/0xa0
   do_syscall_64+0x48/0x140
   entry_SYSCALL_64_after_hwframe+0x44/0xa9

Fix by disabling offloading for flows matching
esw_is_chain_src_port_rewrite() which have more than one output.

Fixes: 10742efc20 ("net/mlx5e: VF tunnel TX traffic offloading")
Signed-off-by: Dima Chumak <dchumak@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-01-06 16:55:39 -08:00
arch - Use the proper CONFIG symbol in a preprocessor check. 2022-01-02 09:02:54 -08:00
block block-5.16-2021-12-19 2021-12-19 12:38:53 -08:00
certs certs: Add support for using elliptic curve keys for signing modules 2021-08-23 19:55:42 +03:00
crypto Update to zstd-1.4.10 2021-11-13 15:32:30 -08:00
Documentation Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2022-01-02 10:36:09 -08:00
drivers net/mlx5e: Fix nullptr on deleting mirroring rule 2022-01-06 16:55:39 -08:00
fs fs/mount_setattr: always cleanup mount_kattr 2021-12-30 15:12:13 -08:00
include Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec 2022-01-06 11:55:45 +00:00
init kbuild: Fix -Wimplicit-fallthrough=5 error for GCC 5.x and 6.x 2021-11-14 18:59:49 -08:00
ipc shm: extend forced shm destroy to support objects from several IPC nses 2021-11-20 10:35:54 -08:00
kernel Merge branch 'akpm' (patches from Andrew) 2021-12-25 12:30:03 -08:00
lib Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 2021-12-08 16:06:44 -08:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm mm: vmscan: reduce throttling due to a failure to make progress -fix 2021-12-31 13:12:55 -08:00
net net/smc: Reset conn->lgr when link group registration fails 2022-01-06 13:54:06 +00:00
samples ftrace/samples: Add module to test multi direct modify interface 2021-12-09 13:02:44 -05:00
scripts recordmcount.pl: fix typo in s390 mcount regex 2021-12-24 10:20:12 +01:00
security selinux/stable-5.16 PR 20211228 2021-12-28 13:33:06 -08:00
sound sound fixes for 5.16-rc7 2021-12-23 09:55:58 -08:00
tools Networking fixes for 5.16-final, including fixes from bpf, and WiFi. 2022-01-05 14:08:56 -08:00
usr initramfs: Check timestamp to prevent broken cpio archive 2021-10-24 13:48:40 +09:00
virt KVM: downgrade two BUG_ONs to WARN_ON_ONCE 2021-11-26 06:43:28 -05:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap mailmap: update email address for Guo Ren 2021-12-10 17:10:55 -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 Daniel Drake to credits 2021-09-21 08:34:58 +03:00
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 MAINTAINERS: update gpio-brcmstb maintainers 2022-01-03 10:53:02 +01:00
Makefile Linux 5.16-rc8 2022-01-02 14:23:25 -08:00
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.